Results 71 to 80 of about 502,287 (194)
Rank-Sparsity Incoherence for Matrix Decomposition [PDF]
, 2009 Suppose we are given a matrix that is formed by adding an unknown sparse matrix to an unknown low-rank matrix. Our goal is to decompose the given matrix into its sparse and low-rank components.
Chandrasekaran, Venkat +3 more
core +7 more sources
, 2012 An expression for the partial frequency redistribution (PRD) matrix for line scattering in a two-term atom, which includes the J-state interference between its fine structure line components is derived.
Anusha +34 more
core +1 more source
EnergiesThe transport of fission products in molten salt reactors has attracted much attention. However, few codes can completely describe the transport characteristic, though the migration of fission products in the molten salt reactor is essential to estimate ...
Liang Chen +7 more
doaj +1 more source
Information Splitting for Big Data Analytics
, 2016 Many statistical models require an estimation of unknown (co)-variance parameter(s) in a model. The estimation usually obtained by maximizing a log-likelihood which involves log determinant terms. In principle, one requires the \emph{observed information}
Gu, Tongxiang +3 more
core +1 more source
Off-forward Matrix Elements in Light-front Hamiltonian QCD
, 2002 We investigate the off-forward matrix element of the light cone vector operator for a dressed quark state in light-front Hamiltonian perturbation theory. We obtain the corresponding splitting functions in a straightforward way. We show that the end point
A. Mukherjee +27 more
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Complete N f 2 $$ {N}_f^2 $$ contributions to four-loop pure-singlet splitting functions
Journal of High Energy PhysicsThe scale evolution of parton distributions is determined by universal splitting functions. As a milestone towards the computation of these functions to four-loop order in QCD, we compute all contributions to the pure-singlet quark-quark splitting ...
Thomas Gehrmann +3 more
doaj +1 more source
Full major-shell calculation for states that were degenerate in a single-j-shell calculation
, 2005 A full fp calculation is performed for states which were degenerate in a single-j-shell calculation in which isospin-zero two-body matrix elements were set to zero energy. Most of the splitting in a complete shell calculation (but not all) comes from the
Escuderos, A. +2 more
core +1 more source
MathematicsIn this paper, we study the improved block splitting (IBS) iteration method and its accelerated variant, the accelerated improved block splitting (AIBS) iteration method, for solving linear systems of equations stemming from the discretization of the ...
Yanan Zhu, Naimin Zhang, Zhen Chao
doaj +1 more source
Doubly perturbed $S_3$ neutrinos and the $s_{13}$ mixing parameter
, 2010 We further study a predictive model for the masses and mixing matrix of three Majorana neutrinos. At zeroth order the model yielded degenerate neutrinos and a generalized ``tribimaximal" mixing matrix. At first order the mass splitting was incorporated
G. L. Fogli +4 more
core +1 more source
Split Noncommutativity and Compactified Brane Solutions in Matrix Models [PDF]
Progress of Theoretical Physics, 2011 24 pages. V2, V3: typos fixed.
openaire +3 more sources