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brownian-motion/def:approxSeq
3,693
brownian-motion
Given a stopping time \(\tau : \Omega \to T \cup \{ \infty \} \), a sequence of stopping times \((\tau _n)_{n \in \mathbb {N}}\) is called an discrete approximation of \(\tau \) if \(\tau _n(\Omega )\) is countable for each \(n\) and \(\tau _n \downarrow \tau \) a.s. as \(n \to \infty \).
[ "brownian-motion/def:IsStoppingTime" ]
[ 3129 ]
brownian-motion/def:stdGaussian
642
brownian-motion
Let \((e_1, \ldots , e_d)\) be an orthonormal basis of \(E\) and let \(\mu \) be the standard Gaussian measure on \(\mathbb {R}\). The standard Gaussian measure on \(E\) is the pushforward measure of the product measure \(\mu \times \ldots \times \mu \) by the map \(x \mapsto \sum _{i=1}^d x_i \cdot e_i\).
[ "brownian-motion/def:gaussianReal" ]
[ 1801 ]
amatelus/def:multi-chapter
3,003
amatelus
This chapter covers multi-device support aspects of AMATELUS.
[ "amatelus/thm:did-local-generation" ]
[ 104 ]
LBPTester/theorem : subspace_contains_zero
2,179
LBPTester
This is a proof that any subspace contains the zero vector:\((0 : V) \in W\)
[ "LBPTester/theorem : zero_smul", "LBPTester/definition : Subspace" ]
[ 2272, 2123 ]
PrimeNumberTheoremAnd/HolomorphicOn_riemannZeta0
225
PrimeNumberTheoremAnd
For any \(N\ge 1\), the function \(\zeta _0(N,s)\) is holomorphic on \(\{ s\in \mathbb {C}\mid \Re (s){\gt}0 ∧ s \ne 1\} \).
[ "PrimeNumberTheoremAnd/riemannZeta0" ]
[ 3461 ]
equational_theories/free-confluent
3,724
equational_theories
Let \(\Gamma \) be a confluent theory. Then the free magma \(M_{X,\Gamma }\) subject to this theory can be described as the space of reduced words in \(M_X\) in normal form, where the operation \(w \diamond _\Gamma w'\) on this magma is defined as the normal form reduction of \(w \diamond w'\), and \(\iota _{X,\Gamma }...
[ "equational_theories/confluent-theory" ]
[ 2924 ]
PrimeNumberTheoremAnd/I8
2,931
PrimeNumberTheoremAnd
\[ I_8(\nu , \epsilon , X, T, \sigma _1) := \frac{1}{2\pi i} \int _{\sigma _1}^{\sigma _0} \left( \frac{-\zeta '}\zeta (\sigma + T i) \right) \mathcal M(\widetilde1_\epsilon )(\sigma + T i) X^{\sigma + T i} \ d\sigma \]
[ "PrimeNumberTheoremAnd/Smooth1" ]
[ 3771 ]
FLT_ch9/NumberField.InfiniteAdeleRing.piEquiv
693
FLT_ch9
There is a natural \(K_{\infty }\)-linear homeomorphism \(K_{\infty }^{[L:K]} \cong _{K_{\infty }} L_{\infty }\).
[ "FLT_ch9/NumberField.InfinitePlace.Completion.piEquiv" ]
[ 2749 ]
brownian-motion/cor:doob_lp_norm
3,363
brownian-motion
Let \(X : \mathbb {R} \rightarrow \Omega \rightarrow E\) be a right-continuous martingale with values in a normed space \(E\). For every \(T, \lambda {\gt}0\) and \(p{\gt}1\) we have \begin{align*} \mathbb {E}\left[ \sup _{t\in [0,T]} \lVert X_t \rVert ^p \right] \leq \left(\frac{p}{p-1}\right)^p\mathbb {E}[\lVert X_T ...
[ "brownian-motion/cor:Martingale.submartingale_norm", "brownian-motion/thm:doob_lp" ]
[ 167, 1677 ]
Sphere-Packing-Lean/def:holomorphic-modular-form
1,477
Sphere-Packing-Lean
Let \(\Gamma \) denote a subgroup of \(\mathrm{SL}_2(\mathbb {Z})\), then a modular form of level \(\Gamma \) and weight \(k \in \mathbb {Z}\) is a function \(f : \mathbb {H} \to \mathbb {C}\) such that: For all \(\gamma \in \Gamma \) we have \(f\mid _k \gamma = f\) (such functions are called slash invariant). \(f\) is...
[ "Sphere-Packing-Lean/def:congruence-subgroup" ]
[ 907 ]
ClassFieldTheory/lem:Dirichlet density split
896
ClassFieldTheory
Let \(l/k\) be a finite Galois extension of number fields. Then the set of degree \(1\) primes of \(k\) which split completely in \(l\) has density \(\frac{1}{[l:k]}\).
[ "ClassFieldTheory/lem:Dirichlet density degree one" ]
[ 1018 ]
pfr/cond-multidist-alt
652
pfr
If the \((X_i,Y_i)\) are independent, \begin{equation} \label{multi-def-cond} D[ X_{[m]} | Y_{[m]}] := \mathbb {H}[\sum _{i=1}^m X_i \big| (Y_j)_{1 \leq j \leq m} ] - \frac{1}{m} \sum _{i=1}^m \mathbb {H}[ X_i | Y_i]. \end{equation}
[ "pfr/conditional-entropy-def", "pfr/cond-multidist-def" ]
[ 1044, 2700 ]
brownian-motion/def:simpleProcess
65
brownian-motion
Let \((s_k {\lt} t_k)_{k \in \{ 1, ..., n\} }\) be points in a linear order \(T\) with a bottom element 0. Let \((\eta _k)_{0 \le k \le n}\) be bounded random variables with values in a normed real vector space \(E\) such that \(\eta _0\) is \(\mathcal{F}_0\)-measurable and \(\eta _k\) is \(\mathcal{F}_{s_k}\)-measurab...
[ "brownian-motion/def:filtration" ]
[ 2474 ]
FLT_ch8/fixed_of_fixed1_aux2
2,961
FLT_ch8
Let \(b_0 \in B\). Suppose that the image of \(b_0\) in the quotient \(B/Q\) is fixed by the stabilizer subgroup \(D_Q\). Then there exist elements \(a,b \in B\), with \(a\notin Q\) and \(a\) in the image of \(A\) such that for all \(g\in G\), If \(g \cdot Q = Q\), then \(g \cdot b \equiv ab_0 \pmod{Q}\). If \(g \cdot ...
[ "FLT_ch8/fixed_of_fixed1_aux1" ]
[ 1886 ]
Sphere-Packing-Lean/E8-vector-norms
3,654
Sphere-Packing-Lean
All vectors in \(\Lambda _8\) have norm of the form \(\sqrt{2n}\), where \(n\) is a nonnegative integer.
[ "Sphere-Packing-Lean/E8-defs-equivalent" ]
[ 529 ]
ABC-Exceptions/lem:Subcase2.6
2,745
ABC-Exceptions
\(\nu \leq 0.66\) in the case \(s_2{\lt}0.3\) and \(2s_1-s_2{\gt}0.025\).
[ "ABC-Exceptions/prop:FourierBound", "ABC-Exceptions/lem:Subcase2.3", "ABC-Exceptions/lem:Subcase2.5", "ABC-Exceptions/lem:Subcase2.4" ]
[ 3214, 825, 1212, 233 ]
equational_theories/austin-two
3,006
equational_theories
Any law with at most two variables has a non-trivial finite model.
[ "equational_theories/models-def" ]
[ 1745 ]
GibbsMeasure/def:gibbs-meas
1,460
GibbsMeasure
Given a specification \(\gamma \), a Gibbs measures specified by \(\gamma \) is a measure \(\nu \in \mathfrak {M}(E^S, \mathcal{E}^S)\) such that \(\gamma _\Lambda (A|\cdot )\) is a conditional expectation kernel for \(\nu \) for all \(A \in \mathcal E^S\) and \(\Lambda \in \operatorname{Finset}(S)\).
[ "GibbsMeasure/def:spec", "GibbsMeasure/def:cond-exp-ker" ]
[ 765, 1310 ]
toric/0-diag-aff-hom
501
toric
Let \(S\) be a scheme. Let \(M, N\) be commutative monoids and \(f : M \to N\) a monoid hom. Then the map \(D_S(f) : D_S(N) \to D_S(M)\) is affine.
[ "toric/0-diag" ]
[ 858 ]
PrimeNumberTheoremAnd/BlaschkeNonZero
3,069
PrimeNumberTheoremAnd
Let \(0 {\lt} r {\lt} R{\lt}1\) and \(f:\overline{\mathbb {D}_1}\to \mathbb {C}\) be analytic on neighborhoods of points in \(\overline{\mathbb {D}_1}\). Then \(B_f(z)\neq 0\) for all \(z\in \overline{\mathbb {D}_r}\).
[ "PrimeNumberTheoremAnd/BlaschkeB", "PrimeNumberTheoremAnd/ZeroFactorization" ]
[ 3062, 3498 ]
radii-polynomial/thm:norm_mul_le
164
radii-polynomial
\(\| a \star b\| _{1,\nu } \leq \| a\| _{1,\nu } \cdot \| b\| _{1,\nu }\). This is axiom (4) of Definition 7.4.1, the key analytic property. The proof uses Mertens’ theorem and weight factorization \(\nu ^n = \nu ^k \cdot \nu ^l\).
[ "radii-polynomial/def:l1Weighted_mul" ]
[ 3101 ]
radii-polynomial/def:param_power_series
1,824
radii-polynomial
For \(\lambda _0 \in \mathbb {R}\), the parameter element \(c \in \ell ^1_\nu \) represents \(\lambda _0 + z\): \begin{equation*} c = (\lambda _0, 1, 0, 0, \ldots ) \in \ell ^1_\nu . \end{equation*}
[ "radii-polynomial/def:param_seq" ]
[ 909 ]
FLT_ch14/automorphic_representation
1,602
FLT_ch14
An automorphic representation is an irreducible \((G(\mathbb {A}_N^f)\times U_\infty ,\mathfrak {g})\)-module isomorphic to an irreducible subquotient of the space of automorphic forms.
[ "FLT_ch14/automorphic_form_actions" ]
[ 1400 ]
FLT_ch11/NumberField.AdeleRing.DivisionAlgebra.Aux.antidiag_mem_C
129
FLT_ch11
For every \(\beta \in D_{\mathbb {A}}^{(1)}\), there exists \(b\in D^\times \) and \(\nu \in D_{\mathbb {A}}^{(1)}\) such that \(\beta =b\nu \) and \((\nu ,\nu ^{-1})\in C.\)
[ "FLT_ch11/NumberField.AdeleRing.DivisionAlgebra.Aux.C", "FLT_ch11/NumberField.AdeleRing.DivisionAlgebra.Aux.X_meets_kernel'", "FLT_ch11/NumberField.AdeleRing.DivisionAlgebra.Aux.X_meets_kernel" ]
[ 1338, 438, 1254 ]
brownian-motion/thm:doob_ineq
143
brownian-motion
Let \(X: \mathbb {R}_+ \to \Omega \to \mathbb {R}\) be a right-continuous non-negative sub-martingale. For every \(T \in \mathbb {R}_+\) and \(\lambda {\gt}0\) we have \begin{align*} P\left( \sup _{t\in [0,T]}X_t \geq \lambda \right) \leq \frac{\mathbb {E}[X_T \mathbb {I}_{\sup _{i \le T}X_i \ge \lambda }]}{\lambda } \...
[ "brownian-motion/lem:doob_countable", "brownian-motion/def:RightContinuous" ]
[ 1108, 1591 ]
brownian-motion/lem:isGaussian_add_const
775
brownian-motion
Let \(\mu \) be a Gaussian measure on \(F\) and let \(c \in F\). Then the measure \(\mu \) translated by \(c\) (the map of \(\mu \) by \(x \mapsto x + c\)) is a Gaussian measure on \(F\).
[ "brownian-motion/def:IsGaussian" ]
[ 3158 ]
ClassFieldTheory/lem:herbrand local l*
2,758
ClassFieldTheory
If \(l/k\) is a cyclic extension of local fields then \(h(l/k, l^\times )= [l:k]\).
[ "ClassFieldTheory/lem:herbrand local units" ]
[ 50 ]
pfr/ruz-copy
282
pfr
If \(X',Y'\) are copies of \(X,Y\) respectively then \(d[X';Y']=d[X ;Y]\).
[ "pfr/ruz-dist-def", "pfr/copy-ent" ]
[ 1818, 2358 ]
ClassFieldTheory/lem:Dirichlet density union
3,617
ClassFieldTheory
Suppose \(M_1\) and \(M_2\) are disjoint sets of primes of \({\mathcal O}_l\). If two of the sets \(M_1, M_2, M_1 \cup M_2\) have a Dirichlet density, then so does the third and we have \[ \mathrm{density}(M_1 \cup M_2) = \mathrm{density}(M_1) + \mathrm{density}(M_2). \]
[ "ClassFieldTheory/def:Dirichlet density" ]
[ 1246 ]
ChebyshevCircles/thm:newton_identities
954
ChebyshevCircles
The power sums and elementary symmetric polynomials are related by: \begin{equation} k \cdot e_k = \sum _{i=1}^k (-1)^{i-1} e_{k-i} p_i, \quad k = 1, 2, \ldots , N, \end{equation}
[ "ChebyshevCircles/lem:discrete_orthogonality" ]
[ 3410 ]
ClassFieldTheory/thm:splitting module trivial
538
ClassFieldTheory
Let \(\sigma '\) be a 2-cocycle representing a fundamental class in \(H^2(G,M)\). Then \(\mathrm{split}(\sigma ')\) has trivial cohomology.
[ "ClassFieldTheory/lem:splits in splitting module", "ClassFieldTheory/thm:triviality criterion", "ClassFieldTheory/lem:restriction fundamental class generates", "ClassFieldTheory/lem:linear injective of surjective" ]
[ 3356, 156, 1539, 2325 ]
brownian-motion/lem:martingale_iff_integral_elemStochIntegral_eq_zero
3,030
brownian-motion
An adapted integrable process \(X\) is a martingale if and only if for every bounded simple process \(V\) with values in \(\mathbb {R}\), \(\mathbb {E}[(V \bullet _{\mathbb {R}} X)_\infty ] = 0\).
[ "brownian-motion/lem:tendsto_elemStochIntegral_limitProcess", "brownian-motion/def:Martingale", "brownian-motion/def:elemStochIntegral" ]
[ 1499, 1156, 490 ]
toric/0-biquot
1,079
toric
If \(B\) is a bialgebra over \(R\) and \(I\) is a bialgebra ideal, the quotient \(B / I\) is equipped with a canonical \(R\)-bialgebra structure.
[ "toric/0-biideal", "toric/0-coquot" ]
[ 2039, 2265 ]
carleson/Lipschitz-partition-unity
522
carleson
There exists a family of functions \(\chi _J\), \(J \in \mathcal{J}'\) such that \begin{equation} \label{eq-pao-1} \mathbf{1}_{{\mathcal{I}}({\mathfrak u}_1)} = \sum _{J \in \mathcal{J}'} \chi _J\, , \end{equation}
[ "carleson/dyadic-partition-1", "carleson/moderate-scale-change" ]
[ 946, 3224 ]
ABC-Exceptions/prop:DeterminantBound
1,073
ABC-Exceptions
\begin{align*} \nu {\lt} \min _{p,q\ge 1} \left( 1+\delta - a_p - b_q +\min \left(\frac{a_p}{q}, \frac{b_q}{p}\right)\right). \end{align*}
[ "ABC-Exceptions/def:nu", "ABC-Exceptions/prop:DeterminantMethod", "ABC-Exceptions/def:aibici" ]
[ 686, 767, 3643 ]
FLT_ch9/IsDedekindDomain.FiniteAdeleRing.tensorProduct_algEquiv
1,163
FLT_ch9
The natural map \(B\otimes _AK\to L\) is a \(B\)-algebra isomorphism.
[ "FLT_ch9/IsDedekindDomain.dvd_norm" ]
[ 1585 ]