article_id stringlengths 9 15 | abstract_text stringlengths 390 2.07k | token_count int64 100 300 |
|---|---|---|
1612.02986 | in this paper we study the resonance graphs of benzenoid systems , tubulenes , and fullerenes . the resonance graph reflects the interactions between the kekul ' e structures of a molecule . the equivalence of the zhang - zhang polynomial ( which counts clar covers ) of the molecular graph and the cube polynomial ( whi... | 128 |
hep-ph0005099 | recently , barger _ et al . _ computed energy losses into kaluza klein modes from astrophysical plasmas in the approximation of zero density for the plasmas . we extend their work by considering the effects of finite density for two plasmon processes . our results show that , for fixed temperature , the energy loss rat... | 149 |
cond-mat0102008 | monte carlo simulations were performed in order to determine the excess number of clusters @xmath0 and the average density of clusters @xmath1 for the two - dimensional `` swiss cheese '' continuum percolation model on a planar @xmath2 system and on the surface of a sphere . the excess number of clusters for the @xmath... | 123 |
0804.2134 | let @xmath0 be an elementary closed semi - algebraic set in @xmath1 , i.e. , there exist real polynomials @xmath2 ( @xmath3 ) such that @xmath4 ; in this case @xmath2 are said to represent @xmath0 . denote by @xmath5 the maximal number of the polynomials from @xmath6 that vanish in a point of @xmath7 if @xmath0 is non ... | 153 |
hep-ph0303151 | feynman s path amplitude formulation of quantum mechanics is used to analyse the production of charged leptons from charged current weak interaction processes . for neutrino induced reactions the interference effects predicted are usually called ` neutrino oscillations ' . similar effects in the detection of muons from... | 160 |
1110.1272 | we report xmm-_newton _ observations of the galactic supernova remnant g296.8@xmath00.3 , together with complementary radio and infrared data . the spatial and spectral properties of the x - ray emission , detected towards g296.8@xmath00.3 , was investigated in order to explore the possible evolutionary scenarios and t... | 283 |
hep-ph9802232 | we discuss the constraints from rare b and k decays on the electroweak symmetry breaking ( ewsb ) sector , as well as on theories of fermion masses . we focus on models involving new strong dynamics and show that transitions involving flavor changing neutral currents ( fcnc ) play an important role in disentangling the... | 127 |
1004.2740 | we study the hole binding energy and pairing correlations in the three - band hubbard model coupled to an apical oxygen phonon , by exact diagonalization and constrained - path monte carlo simulations . in the physically relevant charge - transfer regime , we find that the hole binding energy is strongly enhanced by th... | 141 |
1408.6985 | the process of neutrino production of electron positron pairs in a magnetic field of arbitrary strength , where electrons and positrons can be created in the states corresponding to excited landau levels , is analysed . the mean value of the neutrino energy loss due to the process @xmath0 is calculated . the result can... | 145 |
cond-mat9910264 | a density functional theory for many - body lattice models is considered in which the single - particle density matrix @xmath0 is the basic variable . eigenvalue equations are derived for solving levy s constrained search of the interaction energy functional @xmath1 $ ] . @xmath1 $ ] is expressed as the sum of hartree ... | 243 |
0907.3736 | we compute the entropy of antiferromagnetic quantum spin-@xmath0 chains in an external magnetic field using exact diagonalization and quantum monte carlo simulations . the magnetocaloric effect , _ i.e. _ , temperature variations during adiabatic field changes , can be derived from the isentropes . first , we focus on ... | 134 |
1506.04688 | as a generalization of orbit - polynomial and distance - regular graphs , we introduce the concept of a quotient - polynomial graph . in these graphs every vertex @xmath0 induces the same regular partition around @xmath0 , where all vertices of each cell are equidistant from @xmath0 . some properties and characterizati... | 139 |
0801.2228 | conducting submicron particles are well - suited as filler particles in non - conducting polymer matrices to obtain a conducting composite with a low percolation threshold . going to nanometer - sized filler particles imposes a restriction to the conductivity of the composite , due to the reduction of the density of st... | 165 |
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