Results 11 to 20 of about 2,787 (187)

Local boundedness of monotone-type operators

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1972
P. Fitzpatrick, P. Hess, Tosio Kato
semanticscholar   +4 more sources

New view of fuzzy aggregations. Part III: extensions of the FPOWA operator in the problem of political management [PDF]

open access: yesJournal of Fuzzy Extension and Applications, 2021
The Ordered Weighted Averaging (OWA) operator was introduced by Yager [34] to provide a method for aggregating inputs that lie between the max and min operators.
Gia Sirbiladze
doaj   +1 more source

An initial boundary value problem for the Boussinesq equation in a Trapezoid [PDF]

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2022
This paper considers an initial boundary value problem for a one-dimensional Boussinesq-type equation in a domain, that is, a trapezoid. Using the methods of the theory of monotone operators, we establish theorems on their unique weak solvability in ...
M.T. Jenaliyev   +3 more
doaj   +2 more sources

Nonlinear random operators of monotone type in Banach spaces

open access: yesJournal of Mathematical Analysis and Applications, 1980
D. Kravvaritis
semanticscholar   +3 more sources

On the q-Monotonicity Preservation of Durrmeyer-Type Operators [PDF]

open access: yesMediterranean Journal of Mathematics, 2021
AbstractWe prove that various Durrmeyer-type operators preserveq-monotonicity in [0, 1] or$$[0,\infty )$$[0,∞)as the case may be. Recall that a 1-monotone function is nondecreasing, a 2-monotone one is convex, and for$$q>2$$q>2, aq-monotone function possesses a convex$$(q-2)$$(q-2)nd derivative in the interior of the interval.
Ulrich Abel, Dany Leviatan, Ioan Raşa
openaire   +2 more sources

Stability and Monotonicity of Lotka–Volterra Type Operators [PDF]

open access: yesQualitative Theory of Dynamical Systems, 2016
17 ...
Mukhamedov, Farrukh, Saburov, Mansoor
openaire   +2 more sources

Finite difference schemes with monotone operators

open access: yesAdvances in Difference Equations, 2004
Several existence theorems are given for some second-order difference equations associated with maximal monotone operators in Hilbert spaces. Boundary conditions of monotone type are attached.
N. C. Apreutesei
doaj   +2 more sources

Local existence–uniqueness and monotone iterative approximation of positive solutions for p-Laplacian differential equations involving tempered fractional derivatives

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we are concerned with a kind of tempered fractional differential equation Riemann–Stieltjes integral boundary value problems with p-Laplacian operators.
Bibo Zhou, Lingling Zhang
doaj   +1 more source

A double phase equation with convection

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We consider a double phase problem with a gradient dependent reaction (convection). Using the theory of nonlinear operators of monotone type, we show the existence of a nontrivial, positive, bounded solution.
Zhenhai Liu, Nikolaos Papageorgiou
doaj   +1 more source

Nonlinear equations with weighted potential type operators in Lebesgue spaces

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
By method of monotone operators, existence and uniqueness theorems are proved for some classes of nonlinear equations with weighted potential type operators in Lebesgue spaces.
S. N. Askhabov
doaj   +3 more sources

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