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https://en.wikipedia.org/wiki/38%20%28number%29 | 38 (thirty-eight) is the natural number following 37 and preceding 39.
In mathematics
specifically, the 11th discrete Semiprime, it being the 7th of the form (2.q).
the first member of the third cluster of two discrete semiprimes 38, 39 the next such cluster is 57, 58.
with an aliquot sum of 22 in an aliquot seque... |
https://en.wikipedia.org/wiki/Substitution%20matrix | In bioinformatics and evolutionary biology, a substitution matrix describes the frequency at which a character in a nucleotide sequence or a protein sequence changes to other character states over evolutionary time. The information is often in the form of log odds of finding two specific character states aligned and d... |
https://en.wikipedia.org/wiki/Homogeneous%20space | In mathematics, a homogeneous space is, very informally, a space that looks the same everywhere, as you move through it, with movement given by the action of a group. Homogeneous spaces occur in the theories of Lie groups, algebraic groups and topological groups. More precisely, a homogeneous space for a group G is a n... |
https://en.wikipedia.org/wiki/Fredholm%20integral%20equation | In mathematics, the Fredholm integral equation is an integral equation whose solution gives rise to Fredholm theory, the study of Fredholm kernels and Fredholm operators. The integral equation was studied by Ivar Fredholm. A useful method to solve such equations, the Adomian decomposition method, is due to George Ado... |
https://en.wikipedia.org/wiki/Combinatorial%20topology | In mathematics, combinatorial topology was an older name for algebraic topology, dating from the time when topological invariants of spaces (for example the Betti numbers) were regarded as derived from combinatorial decompositions of spaces, such as decomposition into simplicial complexes. After the proof of the simpli... |
https://en.wikipedia.org/wiki/Richard%20Lewontin | Richard Charles Lewontin (March 29, 1929 – July 4, 2021) was an American evolutionary biologist, mathematician, geneticist, and social commentator. A leader in developing the mathematical basis of population genetics and evolutionary theory, he applied techniques from molecular biology, such as gel electrophoresis, to ... |
https://en.wikipedia.org/wiki/Photochemistry | Photochemistry is the branch of chemistry concerned with the chemical effects of light. Generally, this term is used to describe a chemical reaction caused by absorption of ultraviolet (wavelength from 100 to 400 nm), visible light (400–750 nm) or infrared radiation (750–2500 nm).
In nature, photochemistry is of immen... |
https://en.wikipedia.org/wiki/Principal%20homogeneous%20space | In mathematics, a principal homogeneous space, or torsor, for a group G is a homogeneous space X for G in which the stabilizer subgroup of every point is trivial. Equivalently, a principal homogeneous space for a group G is a non-empty set X on which G acts freely and transitively (meaning that, for any x, y in X, ther... |
https://en.wikipedia.org/wiki/Inorganic%20compound | In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as inorganic chemistry.
Inorganic compounds comprise most of the Earth's crust, although the comp... |
https://en.wikipedia.org/wiki/Colombeau%20algebra | In mathematics, a Colombeau algebra is an algebra of a certain kind containing the space of Schwartz distributions. While in classical distribution theory a general multiplication of distributions is not possible, Colombeau algebras provide a rigorous framework for this.
Such a multiplication of distributions has long... |
https://en.wikipedia.org/wiki/Characteristic%20class | In mathematics, a characteristic class is a way of associating to each principal bundle of X a cohomology class of X. The cohomology class measures the extent the bundle is "twisted" and whether it possesses sections. Characteristic classes are global invariants that measure the deviation of a local product structure f... |
https://en.wikipedia.org/wiki/Serre%E2%80%93Swan%20theorem | In the mathematical fields of topology and K-theory, the Serre–Swan theorem, also called Swan's theorem, relates the geometric notion of vector bundles to the algebraic concept of projective modules and gives rise to a common intuition throughout mathematics: "projective modules over commutative rings are like vector b... |
https://en.wikipedia.org/wiki/Universal%20enveloping%20algebra | In mathematics, the universal enveloping algebra of a Lie algebra is the unital associative algebra whose representations correspond precisely to the representations of that Lie algebra.
Universal enveloping algebras are used in the representation theory of Lie groups and Lie algebras. For example, Verma modules can b... |
https://en.wikipedia.org/wiki/Tensor%20algebra | In mathematics, the tensor algebra of a vector space V, denoted T(V) or T(V), is the algebra of tensors on V (of any rank) with multiplication being the tensor product. It is the free algebra on V, in the sense of being left adjoint to the forgetful functor from algebras to vector spaces: it is the "most general" algeb... |
https://en.wikipedia.org/wiki/One-way%20function | In computer science, a one-way function is a function that is easy to compute on every input, but hard to invert given the image of a random input. Here, "easy" and "hard" are to be understood in the sense of computational complexity theory, specifically the theory of polynomial time problems. Not being one-to-one is ... |
https://en.wikipedia.org/wiki/Ethidium%20bromide | Ethidium bromide (or homidium bromide, chloride salt homidium chloride) is an intercalating agent commonly used as a fluorescent tag (nucleic acid stain) in molecular biology laboratories for techniques such as agarose gel electrophoresis. It is commonly abbreviated as EtBr, which is also an abbreviation for bromoethan... |
https://en.wikipedia.org/wiki/Eduard%20Buchner | Eduard Buchner (; 20 May 1860 – 13 August 1917) was a German chemist and zymologist, awarded the 1907 Nobel Prize in Chemistry for his work on fermentation.
Biography
Early years
Buchner was born in Munich to a physician and Doctor Extraordinary of Forensic Medicine. His older brother was Hans Ernst August Buchner. I... |
https://en.wikipedia.org/wiki/Sabir%20Yunusov | Sabir Yunusovich Yunusov (; 18 March 1909 in Tashkent – 29 November 1995 in Tashkent) was a Soviet-Uzbek chemist, known for his research in alkaloid chemistry. In 1971 he was awarded the D.I. Mendeleev Medal for doing so. He founded the Institute of the Chemistry of Plant Substances under the Academy of Sciences of the... |
https://en.wikipedia.org/wiki/Lucifer%20%28cipher%29 | In cryptography, Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. Lucifer was a direct precursor to the Data Encryption Standard. One version, alternatively named DTD-1, saw commercial use in the 1970s for electronic banking.
Overview... |
https://en.wikipedia.org/wiki/Benjamin%20Peirce | Benjamin Peirce (; April 4, 1809 – October 6, 1880) was an American mathematician who taught at Harvard University for approximately 50 years. He made contributions to celestial mechanics, statistics, number theory, algebra, and the philosophy of mathematics.
Early life
He was born in Salem, Massachusetts, the son of... |
https://en.wikipedia.org/wiki/Gelfand%20representation | In mathematics, the Gelfand representation in functional analysis (named after I. M. Gelfand) is either of two things:
a way of representing commutative Banach algebras as algebras of continuous functions;
the fact that for commutative C*-algebras, this representation is an isometric isomorphism.
In the former case... |
https://en.wikipedia.org/wiki/Functional%20equation | In mathematics, a functional equation
is, in the broadest meaning, an equation in which one or several functions appear as unknowns. So, differential equations and integral equations are functional equations. However, a more restricted meaning is often used, where a functional equation is an equation that relates seve... |
https://en.wikipedia.org/wiki/Quantum%20foam | Quantum foam or spacetime foam is a theoretical quantum fluctuation of spacetime on very small scales due to quantum mechanics. The theory predicts that at these small scales, particles of matter and antimatter are constantly created and destroyed. These subatomic objects are called virtual particles. The idea was devi... |
https://en.wikipedia.org/wiki/PSOLA | PSOLA (Pitch Synchronous Overlap and Add) is a digital signal processing technique used for speech processing and more specifically speech synthesis. It can be used to modify the pitch and duration of a speech signal. It was invented around 1986.
PSOLA works by dividing the speech waveform in small overlapping segmen... |
https://en.wikipedia.org/wiki/Projective%20module | In mathematics, particularly in algebra, the class of projective modules enlarges the class of free modules (that is, modules with basis vectors) over a ring, by keeping some of the main properties of free modules. Various equivalent characterizations of these modules appear below.
Every free module is a projective mo... |
https://en.wikipedia.org/wiki/Israel%20Gelfand | Israel Moiseevich Gelfand, also written Israïl Moyseyovich Gel'fand, or Izrail M. Gelfand (, , ; – 5 October 2009) was a prominent Soviet-American mathematician. He made significant contributions to many branches of mathematics, including group theory, representation theory and functional analysis. The recipient of ma... |
https://en.wikipedia.org/wiki/Anomaly%20%28physics%29 | In quantum physics an anomaly or quantum anomaly is the failure of a symmetry of a theory's classical action to be a symmetry of any regularization of the full quantum theory.
In classical physics, a classical anomaly is the failure of a symmetry to be restored in the limit in which the symmetry-breaking parameter go... |
https://en.wikipedia.org/wiki/Scheme%20%28mathematics%29 | In mathematics, a scheme is a mathematical structure that enlarges the notion of algebraic variety in several ways, such as taking account of multiplicities (the equations x = 0 and x2 = 0 define the same algebraic variety but different schemes) and allowing "varieties" defined over any commutative ring (for example, F... |
https://en.wikipedia.org/wiki/Conformal%20group | In mathematics, the conformal group of an inner product space is the group of transformations from the space to itself that preserve angles. More formally, it is the group of transformations that preserve the conformal geometry of the space.
Several specific conformal groups are particularly important:
The conformal... |
https://en.wikipedia.org/wiki/Sarah%20Kirsch | Sarah Kirsch (; 16 April 1935 – 5 May 2013) was a German poet.
Biography
Sarah Kirsch was originally born Ingrid Bernstein in Limlingerode, Prussian Saxony but had changed her first name to Sarah in order to protest against her father's antisemitism. She studied biology in Halle and literature at the Johannes R. Beche... |
https://en.wikipedia.org/wiki/Dubna | Dubna () is a town in Moscow Oblast, Russia. It has a status of naukograd (i.e. town of science), being home to the Joint Institute for Nuclear Research, an international nuclear physics research center and one of the largest scientific foundations in the country. It is also home to MKB Raduga, a defense aerospace comp... |
https://en.wikipedia.org/wiki/Finite%20intersection%20property | In general topology, a branch of mathematics, a non-empty family A of subsets of a set is said to have the finite intersection property (FIP) if the intersection over any finite subcollection of is non-empty. It has the strong finite intersection property (SFIP) if the intersection over any finite subcollection of i... |
https://en.wikipedia.org/wiki/Clyde%20Cowan | Clyde Lorrain Cowan Jr (December 6, 1919 – May 24, 1974) was an American physicist and the co-discoverer of the neutrino along with Frederick Reines. The discovery was made in 1956 in the neutrino experiment.
Frederick Reines received the Nobel Prize in Physics in 1995 in both their names.
Early life
Born the oldest o... |
https://en.wikipedia.org/wiki/Ford%20circle | In mathematics, a Ford circle is a circle in the Euclidean plane, in a family of circles that are all tangent to the -axis at rational points. For each rational number , expressed in lowest terms, there is a Ford circle whose center is at the point and whose radius is . It is tangent to the -axis at its bottom point, ... |
https://en.wikipedia.org/wiki/Index%20of%20biochemistry%20articles | Biochemistry is the study of the chemical processes in living organisms. It deals with the structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules.
Articles related to biochemistry include:
0–9
2-amino-5-phosphonovalerate - 3' end - 5' end
A
ABC... |
https://en.wikipedia.org/wiki/Missing%20square%20puzzle | The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different c... |
https://en.wikipedia.org/wiki/HTM | HTM may refer to:
Computing
.htm or .html, file extension for HTML
Hierarchical temporal memory, a machine learning mode
Other uses
Held to maturity, an accounting term
HTM Personenvervoer, The Hague, Netherlands, public transport company
Khatgal Airport, Mongolia, IATA code |
https://en.wikipedia.org/wiki/Distribution%20function%20%28physics%29 | In molecular kinetic theory in physics, a system's distribution function is a function of seven variables, , which gives the number of particles per unit volume in single-particle phase space. It is the number of particles per unit volume having approximately the velocity near the position and time . The usual normal... |
https://en.wikipedia.org/wiki/Germline | In biology and genetics, the germline is the population of a multicellular organism's cells that pass on their genetic material to the progeny (offspring). In other words, they are the cells that form the egg, sperm and the fertilised egg. They are usually differentiated to perform this function and segregated in a spe... |
https://en.wikipedia.org/wiki/Glossary%20of%20Internet-related%20terms | This is a Glossary of Internet Terminology; words pertaining to Internet Technology, a subset of Computer Science.
A–M
N–Z
See also
Internet linguistics
Internet slang
Jargon File
References
External links
FOLDOC — Free On-Line Dictionary of Computing
User-contributed dictionary on Internet slang
About-the-we... |
https://en.wikipedia.org/wiki/Pontryagin%20duality | In mathematics, Pontryagin duality is a duality between locally compact abelian groups that allows generalizing Fourier transform to all such groups, which include the circle group (the multiplicative group of complex numbers of modulus one), the finite abelian groups (with the discrete topology), and the additive grou... |
https://en.wikipedia.org/wiki/George%20Birkbeck | George Birkbeck FRS (; 10 January 1776 – 1 December 1841) was a British physician, academic, philanthropist, pioneer in adult education and a professor of natural philosophy at the Andersonian Institute. He is the founder of Birkbeck, University of London and was head of the Chemical Society. He is one of the creators ... |
https://en.wikipedia.org/wiki/List%20of%20biochemists | This is a list of biochemists. It should include those who have been important to the development or practice of biochemistry. Their research or applications have made significant contributions in the area of basic or applied biochemistry.
A
John Jacob Abel (1857–1938). American biochemist and pharmacologist. He fou... |
https://en.wikipedia.org/wiki/Mathematical%20puzzle | Mathematical puzzles make up an integral part of recreational mathematics. They have specific rules, but they do not usually involve competition between two or more players. Instead, to solve such a puzzle, the solver must find a solution that satisfies the given conditions. Mathematical puzzles require mathematics to ... |
https://en.wikipedia.org/wiki/Frame%20bundle | In mathematics, a frame bundle is a principal fiber bundle F(E) associated to any vector bundle E. The fiber of F(E) over a point x is the set of all ordered bases, or frames, for Ex. The general linear group acts naturally on F(E) via a change of basis, giving the frame bundle the structure of a principal GL(k, R)-bun... |
https://en.wikipedia.org/wiki/Knot%20%28mathematics%29 | In mathematics, a knot is an embedding of the circle into three-dimensional Euclidean space, (also known as ). Often two knots are considered equivalent if they are ambient isotopic, that is, if there exists a continuous deformation of which takes one knot to the other.
A crucial difference between the standard m... |
https://en.wikipedia.org/wiki/Philippine%20Airlines%20Flight%20434 | Philippine Airlines Flight 434, sometimes referred to as PAL434 or PR434, was a flight on December 11, 1994, from Cebu to Tokyo on a Boeing 747-283B that was seriously damaged by a bomb, killing one passenger and damaging vital control systems, although the plane was in a repairable state. The bombing was a test run of... |
https://en.wikipedia.org/wiki/Plus%E2%80%93minus%20sign | The plus–minus sign, , is a mathematical symbol with multiple meanings:
In mathematics, it generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction.
In experimental sciences, the sign commonly indicates the confidence interval or uncertaint... |
https://en.wikipedia.org/wiki/UC%20Berkeley%20College%20of%20Chemistry | The UC Berkeley College of Chemistry is one of the fifteen schools and colleges at the University of California, Berkeley. It houses the department of chemistry and the department of chemical and biomolecular engineering, both of which are ranked among the best in the world. Its faculty and alumni have won 18 Nobel Pri... |
https://en.wikipedia.org/wiki/Antipodal%20point | In mathematics, two points of a sphere (or n-sphere, including a circle) are called antipodal or diametrically opposite if they are the intersections of the sphere with a diameter, a straight line passing through its center.
Given any point on a sphere, its antipodal point is the unique point at greatest distance, whe... |
https://en.wikipedia.org/wiki/British%20Ornithologists%27%20Union | The British Ornithologists' Union (BOU) aims to encourage the study of birds ("ornithology") around the world in order to understand their biology and aid their conservation. The BOU was founded in 1858 by Professor Alfred Newton, Henry Baker Tristram and other scientists. Its quarterly journal, Ibis, has been publish... |
https://en.wikipedia.org/wiki/Anyon | In physics, an anyon is a type of quasiparticle that occurs only in two-dimensional systems, with properties much less restricted than the two kinds of standard elementary particles, fermions and bosons. In general, the operation of exchanging two identical particles, although it may cause a global phase shift, cannot ... |
https://en.wikipedia.org/wiki/Ocean%20%28disambiguation%29 | An ocean is a major body of salt water on Earth.
Ocean may also refer to:
Bodies of water
World Ocean, also known as Global Ocean or World Sea or simply the ocean or oceans
The sea
Science and astrophysics
Ocean world
Hycean planet, planet covered in water with a hydrogen atmosphere -- an ocean planet with hydrogen ... |
https://en.wikipedia.org/wiki/Group%20coded%20recording | In computer science, group coded recording or group code recording (GCR) refers to several distinct but related encoding methods for representing data on magnetic media. The first, used in bpi magnetic tape since 1973, is an error-correcting code combined with a run-length limited (RLL) encoding scheme, belonging into... |
https://en.wikipedia.org/wiki/Electrostatics | Electrostatics is a branch of physics that studies slow-moving or stationary electric charges.
Since classical times, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, (), was thus the source of the word 'electricity'. Electrostatic phenomena ... |
https://en.wikipedia.org/wiki/Lebesgue%E2%80%93Stieltjes%20integration | In measure-theoretic analysis and related branches of mathematics, Lebesgue–Stieltjes integration generalizes both Riemann–Stieltjes and Lebesgue integration, preserving the many advantages of the former in a more general measure-theoretic framework. The Lebesgue–Stieltjes integral is the ordinary Lebesgue integral wi... |
https://en.wikipedia.org/wiki/Moment%20%28mathematics%29 | In mathematics, the moments of a function are certain quantitative measures related to the shape of the function's graph. If the function represents mass density, then the zeroth moment is the total mass, the first moment (normalized by total mass) is the center of mass, and the second moment is the moment of inertia. ... |
https://en.wikipedia.org/wiki/27%20%28number%29 | 27 (twenty-seven; Roman numeral XXVII) is the natural number following 26 and preceding 28.
In mathematics
Twenty-seven is equal to the cube of three: ; also 23 (see tetration). It is divisible by the number of prime numbers below it (9).
In decimal, 27 is the first composite number not divisible by any of its digit... |
https://en.wikipedia.org/wiki/Sequence%20%28disambiguation%29 | A sequence, in mathematics, is an ordered list of elements.
Sequence may also refer to:
Arts and media
Film
Sequence (filmmaking), a series of shots or scenes, edited together in succession
Sequence (journal), a film journal
Séquences, a Quebec film magazine
Sequence (2013 film), a 2013 short fantasy horror film... |
https://en.wikipedia.org/wiki/Addition%20reaction | In organic chemistry, an addition reaction is an organic reaction where two or more molecules combine to form a larger one (the adduct).
Addition reactions can only occur on reagents that have multiple bonds. This includes molecules with carbon–carbon double bonds (alkenes) or triple bonds (alkynes), and compounds th... |
https://en.wikipedia.org/wiki/George%20W.%20Lewis | George William Lewis (March 10, 1882 – July 12, 1948) was the director of aeronautical research at the National Advisory Committee for Aeronautics (NACA) until he retired in 1947. He taught at Swarthmore College from 1910 to 1917.
Biography
In 1910, Lewis graduated from Cornell University with a master's degree in me... |
https://en.wikipedia.org/wiki/Protein%20subunit | In structural biology, a protein subunit is a polypeptide chain or single protein molecule that assembles (or "coassembles") with others to form a protein complex.
Large assemblies of proteins such as viruses often use a small number of types of protein subunits as building blocks.
A subunit is often named with a Gree... |
https://en.wikipedia.org/wiki/BOC | BOC is the abbreviation of:
Battle of Chancellorsville, during the American Civil War
Biology of the Cell, an academic journal in biology
Blackbird Owners Club, Motorclub for people who own a Honda CBR1100XX Super Blackbird and/or Honda X-11
Bloque Obrero y Campesino, (Spanish: "Workers and Peasants' Bloc"), a for... |
https://en.wikipedia.org/wiki/Frequency%20domain | In mathematics, physics, electronics, control systems engineering, and statistics, the frequency domain refers to the analysis of mathematical functions or signals with respect to frequency, rather than time. Put simply, a time-domain graph shows how a signal changes over time, whereas a frequency-domain graph shows h... |
https://en.wikipedia.org/wiki/SVP | SVP may refer to:
Science and mathematics
Shortest vector problem, the problem of finding the smallest non-zero vector in a lattice space
Society of Vertebrate Paleontology, a society of paleontologists
Saturated vapour pressure, the pressure exerted by a vapour in thermodynamic equilibrium with its condensed phase... |
https://en.wikipedia.org/wiki/Savant%20syndrome | Savant syndrome () is a phenomenon, sometimes following a brain injury, where someone demonstrates exceptional aptitude in one domain, such as art or mathematics, despite significant social or intellectual impairment.
Those with the condition generally have a neurodevelopmental disorder such as autism spectrum disor... |
https://en.wikipedia.org/wiki/Foliation | In mathematics (differential geometry), a foliation is an equivalence relation on an n-manifold, the equivalence classes being connected, injectively immersed submanifolds, all of the same dimension p, modeled on the decomposition of the real coordinate space Rn into the cosets x + Rp of the standardly embedded subspac... |
https://en.wikipedia.org/wiki/Sliding%20mode%20control | In control systems, sliding mode control (SMC) is a nonlinear control method that alters the dynamics of a nonlinear system by applying a discontinuous control signal (or more rigorously, a set-valued control signal) that forces the system to "slide" along a cross-section of the system's normal behavior. The state-feed... |
https://en.wikipedia.org/wiki/Fraunhofer%20lines | In physics and optics, the Fraunhofer lines are a set of spectral absorption lines named after the German physicist Joseph von Fraunhofer (1787–1826). The lines were originally observed as dark features (absorption lines) in the optical spectrum of the Sun (white light) .
Discovery
In 1802, the English chemist Willia... |
https://en.wikipedia.org/wiki/Plethodontidae | Plethodontidae, or lungless salamanders, are a family of salamanders. Most species are native to the Western Hemisphere, from British Columbia to Brazil, although a few species are found in Sardinia, mainland Europe south of the Alps, and South Korea. In terms of number of species, they are by far the largest group of ... |
https://en.wikipedia.org/wiki/Anyonic%20Lie%20algebra | In mathematics, an anyonic Lie algebra is a U(1) graded vector space over equipped with a bilinear operator and linear maps (some authors use ) and such that , satisfying following axioms:
for pure graded elements X, Y, and Z.
References
Vector spaces
Lie algebras |
https://en.wikipedia.org/wiki/Real%20tree | In mathematics, real trees (also called -trees) are a class of metric spaces generalising simplicial trees. They arise naturally in many mathematical contexts, in particular geometric group theory and probability theory. They are also the simplest examples of Gromov hyperbolic spaces.
Definition and examples
Formal d... |
https://en.wikipedia.org/wiki/Debye%20model | In thermodynamics and solid-state physics, the Debye model is a method developed by Peter Debye in 1912 for estimating the phonon contribution to the specific heat (Heat capacity) in a solid. It treats the vibrations of the atomic lattice (heat) as phonons in a box, in contrast to the Einstein photoelectron model, whic... |
https://en.wikipedia.org/wiki/Open%20and%20closed%20maps | In mathematics, more specifically in topology, an open map is a function between two topological spaces that maps open sets to open sets.
That is, a function is open if for any open set in the image is open in
Likewise, a closed map is a function that maps closed sets to closed sets.
A map may be open, closed, ... |
https://en.wikipedia.org/wiki/1922%20in%20science | The year 1922 in science and technology involved some significant events, listed below.
Archaeology
November 4 – British archaeologist Howard Carter and his men find the entrance to King Tutankhamen's tomb in the Valley of the Kings of Egypt.
Biology
August – The California grizzly bear is hunted to extinction.
La... |
https://en.wikipedia.org/wiki/Weierstrass%20preparation%20theorem | In mathematics, the Weierstrass preparation theorem is a tool for dealing with analytic functions of several complex variables, at a given point P. It states that such a function is, up to multiplication by a function not zero at P, a polynomial in one fixed variable z, which is monic, and whose coefficients of lower d... |
https://en.wikipedia.org/wiki/Tensor%20product%20of%20fields | In mathematics, the tensor product of two fields is their tensor product as algebras over a common subfield. If no subfield is explicitly specified, the two fields must have the same characteristic and the common subfield is their prime subfield.
The tensor product of two fields is sometimes a field, and often a dire... |
https://en.wikipedia.org/wiki/Radical%20of%20a%20ring | In ring theory, a branch of mathematics, a radical of a ring is an ideal of "not-good" elements of the ring.
The first example of a radical was the nilradical introduced by , based on a suggestion of . In the next few years several other radicals were discovered, of which the most important example is the Jacobson rad... |
https://en.wikipedia.org/wiki/Long-term%20potentiation | In neuroscience, long-term potentiation (LTP) is a persistent strengthening of synapses based on recent patterns of activity. These are patterns of synaptic activity that produce a long-lasting increase in signal transmission between two neurons. The opposite of LTP is long-term depression, which produces a long-lastin... |
https://en.wikipedia.org/wiki/Magic%20cube | In mathematics, a magic cube is the 3-dimensional equivalent of a magic square, that is, a collection of integers arranged in an n × n × n pattern such that the sums of the numbers on each row, on each column, on each pillar and on each of the four main space diagonals are equal, the so-called magic constant of the cub... |
https://en.wikipedia.org/wiki/Perfect%20magic%20cube | In mathematics, a perfect magic cube is a magic cube in which not only the columns, rows, pillars, and main space diagonals, but also the cross section diagonals sum up to the cube's magic constant.
Perfect magic cubes of order one are trivial; cubes of orders two to four can be proven not to exist, and cubes of order... |
https://en.wikipedia.org/wiki/Semiperfect%20magic%20cube | In mathematics, a semiperfect magic cube is a magic cube that is not a perfect magic cube, i.e., a magic cube for which the cross section diagonals do not necessarily sum up to the cube's magic constant.
References
.
Magic squares |
https://en.wikipedia.org/wiki/Tensor%20product%20of%20algebras | In mathematics, the tensor product of two algebras over a commutative ring R is also an R-algebra. This gives the tensor product of algebras. When the ring is a field, the most common application of such products is to describe the product of algebra representations.
Definition
Let R be a commutative ring and let A an... |
https://en.wikipedia.org/wiki/Multimagic%20cube | In mathematics, a P-multimagic cube is a magic cube that remains magic even if all its numbers are replaced by their k th powers for 1 ≤ k ≤ P. cubes are called bimagic, cubes are called trimagic, and cubes tetramagic. A cube is said to be semi-perfect if the k th power cubes are perfect for 1 ≤ k < ... |
https://en.wikipedia.org/wiki/Opposite%20category | In category theory, a branch of mathematics, the opposite category or dual category Cop of a given category C is formed by reversing the morphisms, i.e. interchanging the source and target of each morphism. Doing the reversal twice yields the original category, so the opposite of an opposite category is the original ca... |
https://en.wikipedia.org/wiki/Thioester | In organic chemistry, thioesters are organosulfur compounds with the molecular structure . They are analogous to carboxylate esters () with the sulfur in the thioester replacing oxygen in the carboxylate ester, as implied by the thio- prefix. They are the product of esterification of a carboxylic acid () with a thiol ... |
https://en.wikipedia.org/wiki/Multimagic%20square | In mathematics, a P-multimagic square (also known as a satanic square) is a magic square that remains magic even if all its numbers are replaced by their kth powers for 1 ≤ k ≤ P. squares are called bimagic, squares are called trimagic, squares tetramagic, and squares pentamagic.
Constants for normal squares
If t... |
https://en.wikipedia.org/wiki/Magic%20hypercube | In mathematics, a magic hypercube is the k-dimensional generalization of magic squares and magic cubes, that is, an n × n × n × ... × n array of integers such that the sums of the numbers on each pillar (along any axis) as well as on the main space diagonals are all the same. The common sum is called the magic constan... |
https://en.wikipedia.org/wiki/Grothendieck%27s%20Galois%20theory | In mathematics, Grothendieck's Galois theory is an abstract approach to the Galois theory of fields, developed around 1960 to provide a way to study the fundamental group of algebraic topology in the setting of algebraic geometry. It provides, in the classical setting of field theory, an alternative perspective to that... |
https://en.wikipedia.org/wiki/Kathy%20Tyers | Kathy Tyers is an American science fiction author.
Tyers, born in Long Beach, California, is a microbiology graduate and a certified K-12 teacher. She began her writing career in the early 1980s, publishing her first novel, Firebird, in 1986. She continued to write successful science fiction novels, including The Truc... |
https://en.wikipedia.org/wiki/1601%20in%20science | The year 1601 CE in science and technology included many events, some of which are listed below.
Computer science
January 1 – Retrospectively the epoch reference date from which ANSI dates are counted in COBOL and other computer languages, and the base of Windows FILETIME timestamps which are stored as a 63 bit count... |
https://en.wikipedia.org/wiki/1602%20in%20science | The year 1602 in science and technology involved some significant events.
Astronomy
Thomas Blundeville publishes The Theoriques of the Seuen Planets, assisted by Lancelot Browne.
Chemistry
Vincenzio Cascarido discovers barium sulfide.
Commencement of publication of Theatrum Chemicum, a compendium of European alche... |
https://en.wikipedia.org/wiki/Pathological%20%28mathematics%29 | In mathematics, when a mathematical phenomenon runs counter to some intuition, then the phenomenon is sometimes called pathological. On the other hand, if a phenomenon does not run counter to intuition,
it is sometimes called well-behaved. These terms are sometimes useful in mathematical research and teaching, but the... |
https://en.wikipedia.org/wiki/Jordan%20decomposition | In mathematics, Jordan decomposition may refer to
Hahn decomposition theorem, and the Jordan decomposition of a measure
Jordan normal form of a matrix
Jordan–Chevalley decomposition of a matrix
Deligne–Lusztig theory, and its Jordan decomposition of a character of a finite group of Lie type
The Jordan–Hölder theo... |
https://en.wikipedia.org/wiki/Polynomial%20ring | In mathematics, especially in the field of algebra, a polynomial ring or polynomial algebra is a ring (which is also a commutative algebra) formed from the set of polynomials in one or more indeterminates (traditionally also called variables) with coefficients in another ring, often a field.
Often, the term "polynomia... |
https://en.wikipedia.org/wiki/Equinumerosity | In mathematics, two sets or classes A and B are equinumerous if there exists a one-to-one correspondence (or bijection) between them, that is, if there exists a function from A to B such that for every element y of B, there is exactly one element x of A with f(x) = y. Equinumerous sets are said to have the same cardina... |
https://en.wikipedia.org/wiki/Copley%20Medal | The Copley Medal is the most prestigious award of the Royal Society, conferred "for sustained, outstanding achievements in any field of science". It alternates between the physical sciences or mathematics and the biological sciences. Given annually, the medal is the oldest Royal Society medal awarded and the oldest sur... |
https://en.wikipedia.org/wiki/Lie%20group%20decomposition | In mathematics, Lie group decompositions are used to analyse the structure of Lie groups and associated objects, by showing how they are built up out of subgroups. They are essential technical tools in the representation theory of Lie groups and Lie algebras; they can also be used to study the algebraic topology of suc... |
https://en.wikipedia.org/wiki/Language%20of%20mathematics | The language of mathematics or mathematical language is an extension of the natural language (for example English) that is used in mathematics and in science for expressing results (scientific laws, theorems, proofs, logical deductions, etc) with concision, precision and unambiguity.
Features
The main features of the ... |
https://en.wikipedia.org/wiki/Hygienic%20macro | In computer science, hygienic macros are macros whose expansion is guaranteed not to cause the accidental capture of identifiers. They are a feature of programming languages such as Scheme, Dylan, Rust, Nim, and Julia. The general problem of accidental capture was well known in the Lisp community before the introductio... |
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