Results 31 to 40 of about 2,535,841 (289)
On Fundamental Solution for Autonomous Linear Retarded Functional Differential Equations
Mathematics, 2020 This document focuses attention on the fundamental solution of an autonomous linear retarded functional differential equation (RFDE) along with its supporting cast of actors: kernel matrix, characteristic matrix, resolvent matrix; and the Laplace ...
Clement McCalla
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"Spectrally gapped" random walks on networks: a Mean First Passage Time formula
SciPost Physics, 2021 We derive an approximate but explicit formula for the Mean First Passage Time of a random walker between a source and a target node of a directed and weighted network.
Silvia Bartolucci, Fabio Caccioli, Francesco Caravelli, Pierpaolo Vivo
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Time-resolved Mueller matrix imaging polarimetry
Optics Express, 2004 We present a new method of time-resolved Mueller matrix imaging polarimetry for spatial and temporal characterization of the polarization effects in backscattering from turbid media. The technique allows measuring the time evolution of spatially varying polarization patterns of diffusely backscattered light with picosecond resolution.
Berezhnyy, Ihor, Dogariu, Aristide
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Special Matrices, 2017 We obtain explicit interrelations between new Dyukarev-Stieltjes matrix parameters and orthogonal matrix polynomials on a finite interval [a, b], as well as the Schur complements of the block Hankel matrices constructed through the moments of the ...
Choque-Rivero A.E.
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Qualitative aspects of Volterra integro-dynamic system on time scales
Electronic Journal of Qualitative Theory of Differential Equations, 2013 This paper deals with the resolvent, asymptotic stability and boundedness of the solution of time-varying Volterra integro-dynamic system on time scales in which the coefficient matrix is not necessarily stable.
Vasile Lupulescu +2 more
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Resolvent and scattering matrix at the maximum of the potential
, 2007 We study the microlocal structure of the resolvent of the semi-classical Schrodinger operator with short range potential at an energy which is a unique non-degenerate global maximum of the potential. We prove that it is a semi-classical Fourier integral operator quantizing the incoming and outgoing Lagrangian submanifolds associated to the fixed ...
Alexandrova, Ivana +2 more
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Resolving Matrix Spencer Conjecture Up to Poly-logarithmic Rank
Proceedings of the 55th Annual ACM Symposium on Theory of Computing, 2023 We give a simple proof of the matrix Spencer conjecture up to poly-logarithmic rank: given symmetric $d \times d$ matrices $A_1,\ldots,A_n$ each with $\|A_i\|_{\mathsf{op}} \leq 1$ and rank at most $n/\log^3 n$, one can efficiently find $\pm 1$ signs $x_1,\ldots,x_n$ such that their signed sum has spectral norm $\|\sum_{i=1}^n x_i A_i\|_{\mathsf{op}} =
Nikhil Bansal, Haotian Jiang, Raghu Meka
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GRID PATTERNS AS A MATHEMATICAL MODEL OF MULTIPLE ELEMENTS MEASURING DEVICES
Радіоелектронні і комп'ютерні системи, 2019 Computer modeling of measuring devices that contains matrix of electrodes are examined. Method of local weighted approximation is applied. Special location of the measurement nodes that forms a matrix structure (grid pattern) is applied for quadratic ...
А. В. Карташов +1 more
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Stochastic estimation of level density in nuclear shell-model calculations
EPJ Web of Conferences, 2016 An estimation method of the nuclear level density stochastically based on nuclear shell-model calculations is introduced. In order to count the number of the eigen-values of the shell-model Hamiltonian matrix, we perform the contour integral of the ...
Shimizu Noritaka +5 more
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The Signless Laplacian Estrada Index of Unicyclic Graphs [PDF]
Mathematics Interdisciplinary Research, 2017 For a simple graph G, the signless Laplacian Estrada index is defined as SLEE(G)=∑ni=1eqi, where q1, q2,..., qn are the eigenvalues of the signless Laplacian matrix of G.
Hamid Reza Ellahi +3 more
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