Results 31 to 40 of about 459,640 (288)

Existence and smoothness of solutions of a singular differential equation of hyperbolic type

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This paper investigates the question of the existence of solutions to the semiperiodic Dirichlet problem for a class of singular differential equations of hyperbolic type.
M.B. Muratbekov, Ye.N. Bayandiyev
doaj   +1 more source

Parabolic Problems with Dynamic Boundary Conditions in Lp Spaces

open access: yesBruno Pini Mathematical Analysis Seminar, 2014
We illustrate a maximal regularity result for parabolic problems with dynamic boundary conditions in Lp spaces.
Davide Guidetti
doaj   +1 more source

Regularity of the Hardy-Littlewood maximal operator on block decreasing functions [PDF]

open access: yes, 2009
We study the Hardy-Littlewood maximal operator defined via an unconditional norm, acting on block decreasing functions. We show that the uncentered maximal operator maps block decreasing functions of special bounded variation to functions with integrable
Lázaro, F.J.P. [0000-0001-5354-8940]   +1 more
core   +1 more source

Comportement extrémal des copules diagonales et de Bertino

open access: yesComptes Rendus. Mathématique, 2021
The maximal attractors of bivariate diagonal and Bertino copulas are determined under suitable regularity conditions. Some consequences of these facts are drawn, namely bounds on the maximal attractor of a symmetric copula with a given diagonal section ...
Genest, Christian, Sabbagh, Magid
doaj   +1 more source

Each regular code is included in a maximal regular code [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 1986
It is proved here that each regular code is included in a maximal regular code. Other concepts of codes related to maximality are involved. The main result solves a long standing open problem in the theory of formal languages and combinatorial semigroup theory.
Andrzej Ehrenfeucht, Grzegorz Rozenberg
openaire   +2 more sources

The Maximal Regularity of Nonlocal Parabolic Monge–Ampère Equations and Its Monotonicity in the Whole Space

open access: yesAxioms
The Monge–Ampère operator, as a nonlinear operator embedded in parabolic differential equations, complicates the demonstration of maximal regularity for these equations.
Xingyu Liu
doaj   +1 more source

The maximal subgroups of the classical groups in dimension 13, 14 and 15 [PDF]

open access: yes, 2015
One might easily argue that the Classification of Finite Simple Groups is one of the most important theorems of group theory. Given that any finite group can be deconstructed into its simple composition factors, it is of great importance to have a ...
Schröder, Anna Katharina
core   +2 more sources

Regularity for commutators of the local multilinear fractional maximal operators

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper we introduce and study the commutators of the local multilinear fractional maximal operators and a vector-valued function b⃗ = (b1, …, bm). Under the condition that each bi belongs to the first order Sobolev spaces, the bounds for the above
Zhang Xiao, Liu Feng
doaj   +1 more source

Time Fractional Derivatives and Evolution Equations

open access: yesBruno Pini Mathematical Analysis Seminar, 2017
In this seminar we introduce the fractional derivatives of Riemann-Liouville and Caputo, with some of their main properties. We conclude by illustrating certain results of maximal regularity for mixed initial-boundary value problems, evolving them.
Davide Guidetti
doaj   +1 more source

Global Solvability of Compressible–Incompressible Two-Phase Flows with Phase Transitions in Bounded Domains

open access: yesMathematics, 2021
Consider a free boundary problem of compressible-incompressible two-phase flows with surface tension and phase transition in bounded domains Ωt+,Ωt−⊂RN, N≥2, where the domains are separated by a sharp compact interface Γt⊂RN−1.
Keiichi Watanabe
doaj   +1 more source

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