Results 31 to 40 of about 2,787 (187)

Monotonicity of radially symmetric supersolutions for polyharmonic-type operators

open access: yesDifferential and Integral Equations, 2002
In this work, we prove some "precise properties" for radially symmetric supersolutions for polyharmonic operators with zero Dirichlet boundary conditions. As a consequence, we prove that they are strictly monotone functions of the radius.
Ge, Yuxin, Ye, Dong
openaire   +4 more sources

Some weak type inequalities and almost everywhere convergence of Vilenkin–Nörlund means

open access: yesJournal of Inequalities and Applications, 2023
We prove and discuss some new weak type ( 1 , 1 ) $(1,1 ) $ inequalities of maximal operators of Vilenkin–Nörlund means generated by monotone coefficients. Moreover, we use these results to prove a.e. convergence of such Vilenkin–Nörlund means.
Davit Baramidze   +3 more
doaj   +1 more source

Modified Inertial Algorithms for a Class of Split Feasibility Problems and Fixed Point Problems in Hilbert Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2022
In this work, we introduce an iterative algorithm for solving the split feasibility problem on zeros of the sum of monotone operators and fixed point sets and also solving the fixed point problem of a nonexpansive mapping.
Montira Suwannaprapa
doaj   +1 more source

Statistical Korovkin-type theorem for monotone and sublinear operators

open access: yesStudia Universitatis Babeş-Bolyai. Mathematica, 2023
"In this paper we generalize the result on statistical uniform convergence in the Korovkin theorem for positive and linear operators in C([a; b]), to the more general case of monotone and sublinear operators.
I. Iancu
semanticscholar   +1 more source

On a boundary value problem for a Boussinesq-type equation in a triangle

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
Earlier, we considered an initial-boundary value problem for a one-dimensional Boussinesq-type equation in a domain that is a trapezoid, in which the theorems on its unique weak solvability in Sobolev classes were established by the methods of the theory
M. T. Jenaliyev   +2 more
doaj   +1 more source

q,h-Opial-Type Inequalities via Hahn Operators

open access: yesDiscrete Dynamics in Nature and Society, 2022
In this paper, the well-known Hölder’s inequality is proved via Hahn differential and integral operators, which is a helping tool to establish some Opial-type inequalities via Hahn’s calculus.
Ammara Nosheen   +3 more
doaj   +1 more source

On an operator equation involving mappings of monotone type [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Let X X be a real reflexive Banach space and A : X → 2 X ∗ A:X \to {2^{{X^{\ast }}}} a maximal ...
openaire   +1 more source

Existence of Fixed Points of Firmly Nonexpansive-Like Mappings in Banach Spaces

open access: yesFixed Point Theory and Applications, 2010
The aim of this paper is to obtain some existence theorems related to a hybrid projection method and a hybrid shrinking projection method for firmly nonexpansive-like mappings (mappings of type (P)) in a Banach space.
Fumiaki Kohsaka, Koji Aoyama
doaj   +2 more sources

Examining the Hermite–Hadamard Inequalities for k-Fractional Operators Using the Green Function

open access: yesFractal and Fractional, 2023
For k-Riemann–Liouville fractional integral operators, the Hermite–Hadamard inequality is already well-known in the literature. In this regard, this paper presents the Hermite–Hadamard inequalities for k-Riemann–Liouville fractional integral operators by
Çetin Yildiz, Luminiţa-Ioana Cotîrlă
doaj   +1 more source

A Generalized Convexity and Inequalities Involving the Unified Mittag–Leffler Function

open access: yesAxioms, 2023
This article aims to obtain inequalities containing the unified Mittag–Leffler function which give bounds of integral operators for a generalized convexity. These findings provide generalizations and refinements of many inequalities. By setting values of
Ghulam Farid   +4 more
doaj   +1 more source

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