Results 101 to 110 of about 1,720,065 (227)

Sum rules and large deviations for spectral matrix measures in the Jacobi ensemble

open access: yes, 2018
We continue to explore the connections between large deviations for objects coming from random matrix theory and sum rules. This connection was established in [18] for spectral measures of classical ensembles (Gauss-Hermite, Laguerre, Jacobi) and it was ...
Gamboa, Fabrice   +2 more
core   +4 more sources

Computational Cost Reduction for N+2 Order Coupling Matrix Synthesis Based on Desnanot-Jacobi Identity

open access: yesIEEE Access, 2016
Matrix inversion is routinely performed in computational engineering, with coupling matrix filter synthesis considered here as just one of many example applications.
Andrei A. Muller   +2 more
doaj   +1 more source

Rational points on even‐dimensional Fermat cubics

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract We show that even‐dimensional Fermat cubic hypersurfaces are rational over any field of characteristic not equal to three, by constructing explicit rational parameterizations with polynomials of low degree. As a byproduct of our rationality constructions, we obtain estimates for the number of their rational points over a number field and ...
Alex Massarenti
wiley   +1 more source

Gründlicher Unterricht von der Gottesgelahrheit

open access: yes
Vorlageform des Erscheinungsvermerks: Leipzig, verlegts Carl Ludwig Jacobi ...
Ungibauer, Christoph Gottfried
core   +1 more source

A Geometric Multigrid Preconditioner for Discontinuous Galerkin Shifted Boundary Method

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 21, 15 November 2026.
ABSTRACT I introduce a geometric multigrid preconditioner for the Shifted Boundary Method (SBM) designed to solve PDEs on complex geometries. While the SBM simplifies mesh generation by using a nonconforming background grid, it often results in nonsymmetric linear systems, a complete analysis of which is missing from the literature, especially with ...
Michał Wichrowski
wiley   +1 more source

A class of matrix-valued polynomials generalizing Jacobi polynomials

open access: yesJournal of Approximation Theory, 2009
A hierarchy of matrix-valued polynomials which generalize the Jacobi polynomials is found. Defined by a Rodrigues formula, they are also products of a sequence of differential operators. Each class of polynomials is complete, satisfies a two-step recurrence relation, integral inter-relations, and quasi-orthogonality relations.
openaire   +4 more sources

Modified Lagrange–Jacobi Functions

open access: yesMathematics
This paper presents modified Lagrange–Jacobi functions derived from the sine, exponential, and hyperbolic tangent coordinate transformations. The resulting Lagrange–Jacobi functions and their respective matrix elements for observables can be reduced to ...
Gaotsiwe Joel Rampho
doaj   +1 more source

Properties of the scattering matrix and dispersion estimates for Jacobi operators

open access: yesJournal of Mathematical Analysis and Applications, 2016
10 ...
Iryna Egorova   +2 more
openaire   +3 more sources

Lake Sediments Exposed Under Warmer Temperatures Hatched a Lower Diversity of Microfauna From the Egg Bank

open access: yesFreshwater Biology, Volume 71, Issue 11, November 2026.
ABSTRACT Dormant structures produced by aquatic microorganisms are ecologically important for restoring ecosystems after extreme climatic events. Among these events, heat waves cause the desiccation of environments and expose sediments to high temperatures, which reduce the viability of dormant propagules.
Jonathan Rosa   +11 more
wiley   +1 more source

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