Results 81 to 90 of about 629,413 (279)

THE FALLACY OF «LIOUVILLE'S THEOREM» AND PREDICTABLE ATMOSPHERE AND CLIMATE

open access: yesInterCarto. InterGIS, 2016
The paper substantiates the fallacy of «Liouville theorem» and, accordingly, the inability to be based on its prediction of the behavior of the atmosphere and climate.
V. S. Datsko
doaj   +1 more source

An Optimal Preconditioned MINRES Method for Symmetrized Multilevel Block Toeplitz Systems With Applications

open access: yesNumerical Linear Algebra with Applications, Volume 32, Issue 6, December 2025.
ABSTRACT In this work, we propose a novel preconditioned minimal residual method for a class of real, nonsymmetric multilevel block Toeplitz systems, which generalizes an ideal preconditioner established in [J. Pestana. Preconditioners for symmetrized Toeplitz and multilevel Toeplitz matrices. SIAM Journal on Matrix Analysis and Applications, 40(3):870–
Grigorios Tachyridis, Sean Y. Hon
wiley   +1 more source

Three-circle theorems and Liouville-type theorems

open access: yesScience China Mathematics
14 ...
Jian, Run-Qiang, Zhang, Zhuhong
openaire   +3 more sources

On the dimension of the boundaries of attracting basins of entire maps

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 6, December 2025.
Abstract Let f:C→C$f:\mathbb{C}\to \mathbb{C}$ be a transcendental entire map from the Eremenko–Lyubich class B$\mathcal {B}$, and let ζ$\zeta$ be an attracting periodic point of period p$p$. We prove that the boundaries of components of the attracting basin of (the orbit of) ζ$\zeta$ have hyperbolic (and, consequently, Hausdorff) dimension larger than 
Krzysztof Barański   +4 more
wiley   +1 more source

A note on the singular Sturm-Liouville problem with infinitely many solutions

open access: yesElectronic Journal of Differential Equations, 2002
We consider the Sturm-Liouville nonlinear boundary-value problem $$ displaylines{ -u''(t) = a(t)f(u(t)), quad 0 < t < 1, cr alpha u(0) - eta u'(0) =0, quad gamma u(1) + delta u'(1) = 0, } $$ where $alpha$, $eta$, $gamma$, $delta geq 0$, $alpha gamma ...
Nickolai Kosmatov
doaj  

Existence and uniqueness of solutions for mixed fractional q-difference boundary value problems

open access: yesBoundary Value Problems, 2019
In this paper, we investigate the existence and uniqueness of solutions for mixed fractional q-difference boundary value problems involving the Riemann–Liouville and the Caputo fractional derivative. By using the Guo–Krasnoselskii fixed point theorem and
Lulu Zhang, Shurong Sun
doaj   +1 more source

Link theorem and distributions of solutions to uncertain Liouville-Caputo difference equations

open access: diamond, 2021
H. M. Srivastava   +3 more
openalex   +1 more source

Conformal optimization of eigenvalues on surfaces with symmetries

open access: yesJournal of the London Mathematical Society, Volume 112, Issue 6, December 2025.
Abstract Given a conformal action of a discrete group on a Riemann surface, we study the maximization of Laplace and Steklov eigenvalues within a conformal class, considering metrics invariant under the group action. We establish natural conditions for the existence and regularity of maximizers. Our method simplifies the previously known techniques for
Denis Vinokurov
wiley   +1 more source

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