Results 31 to 40 of about 244,383 (211)

Spectrum of free-form Sudoku graphs

Open Mathematics, 2018
A free-form Sudoku puzzle is a square arrangement of m ×m cells such that the cells are partitioned into m subsets (called blocks) of equal cardinality. The goal of the puzzle is to place integers 1, . .
Abudayah Mohammad, Alomari Omar, Sander Torsten   +2 more
doaj   +1 more source

Simple eigenvectors of unbounded operators of the type “normal plus compact” [PDF]

Opuscula Mathematica, 2015
The paper deals with operators of the form \(A=S+B\), where \(B\) is a compact operator in a Hilbert space \(H\) and \(S\) is an unbounded normal one in \(H\), having a compact resolvent.
Michael Gil'
doaj   +1 more source

Correlation between diffusion tensor indices and fascicular morphometric parameters of peripheral nerve

Frontiers in Physiology, 2023
Introduction: Diffusion tensor imaging (DTI) is a magnetic resonance imaging (MRI) technique that measures the anisotropy of water diffusion. Clinical magnetic resonance imaging scanners enable visualization of the structural integrity of larger axonal ...
Luka Pušnik, Igor Serša, Nejc Umek, Erika Cvetko, Žiga Snoj, Žiga Snoj   +5 more
doaj   +1 more source

Galerkin eigenvector approximations [PDF]

Mathematics of Computation, 2000
39 ...
openaire   +2 more sources

A First Approach to Quantum Logical Shape Classification Framework

Mathematics
Quantum logic is a well-structured theory, which has recently received some attention because of its fundamental relation to quantum computing. However, the complex foundation of quantum logic borrowing concepts from different branches of mathematics as ...
Alexander Köhler, Marvin Kahra, Michael Breuß   +2 more
doaj   +1 more source

Computing and deflating eigenvalues while solving multiple right hand side linear systems in Quantum Chromodynamics

, 2008
We present a new algorithm that computes eigenvalues and eigenvectors of a Hermitian positive definite matrix while solving a linear system of equations with Conjugate Gradient (CG).
Andreas Stathopoulos, Del Debbio L., Giusti L., Konstantinos Orginos, Saad Y., Stathopoulos A.   +5 more
core   +1 more source

Reversible Self-Dual Codes Over the Ring F₂ + uF₂

IEEE Access
In this study, we introduce bisymmetric self-dual codes over the finite field ${\mathbb F}_{2}$ of order two. We developed a method to generate binary bisymmetric self-dual codes from a small-length bisymmetric self-dual code by increasing its length ...
Hyun Jin Kim, Whan-Hyuk Choi
doaj   +1 more source

How can we naturally order and organize graph Laplacian eigenvectors?

, 2018
When attempting to develop wavelet transforms for graphs and networks, some researchers have used graph Laplacian eigenvalues and eigenvectors in place of the frequencies and complex exponentials in the Fourier theory for regular lattices in the ...
Saito, Naoki
core   +2 more sources

On a q-extension of Mehta's eigenvectors of the finite Fourier transform for q a root of unity [PDF]

, 2009
It is shown that the continuous q-Hermite polynomials for q a root of unity have simple transformation properties with respect to the classical Fourier transform.
Allaway Wm R, Andrews G E, Arik M, Askey R, Askey R A, Atakishiyev N M, Atakishiyev N M, Atakishiyev N M, Berndt B, Biedenharn L C, Dahlquist G, Gasper G, Koekoek R Swarttouw R F, Lidl R, Macfarlane A J, Matveev V B, Mesuma K Atakishiyeva, Natig M Atakishiyev, Serre J-P, Stein E, Terras A, Tom H Koornwinder   +21 more
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Construction of some missing eigenvectors of the XYZ spin chain at the discrete coupling constants and the exponentially large spectral degeneracy of the transfer matrix

, 2002
We discuss an algebraic method for constructing eigenvectors of the transfer matrix of the eight vertex model at the discrete coupling parameters. We consider the algebraic Bethe ansatz of the elliptic quantum group $E_{\tau, \eta}(sl_2)$ for the case ...
Affleck I, Akutsu Y, Andrews G E, Baxter R, Baxter R, Baxter R, Baxter R, Baxter R J, Deguchi T, Fabricius K, Felder G, Felder G, Fuchs J, Jimbo M, Jimbo M, Jimbo M (ed), Korff C, Kuniba A, Pokrovsky S, Takebe T, Takebe T, Takhtajan L, Tetsuo Deguchi   +22 more
core   +1 more source