Results 21 to 30 of about 1,089 (131)

Variational inequality for a vector field on Hadamard spaces

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
Our purpose is to study the variational inequality problem for a vector field on Hadamard spaces. The existence and uniqueness of the solutions to the variational inequality problem associated with a vector field in Hadamard spaces are studied.
Ranjbar Sajad
doaj   +1 more source

Convergence and stability of the three‐step iterative schemes for a class of general quasivariational‐like inequalities

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 70, Page 3849-3857, 2004., 2004
We introduce and study a class of general quasivariational‐like inequalities in Hilbert spaces, suggest two general algorithms, and establish the existence and uniqueness of solutions for these kinds of inequalities. Under certain conditions, we discuss convergence and stability of the three‐step iterative sequences generated by the algorithms.
Zeqing Liu   +3 more
wiley   +1 more source

On variational nonlinear equations with monotone operators

open access: yesAdvances in Nonlinear Analysis, 2020
Using monotonicity methods and some variational argument we consider nonlinear problems which involve monotone potential mappings satisfying condition (S) and their strongly continuous perturbations.
Galewski Marek
doaj   +1 more source

Convergence theorems for monotone vector field inclusions and minimization problems in Hadamard spaces

open access: yesAnalysis and Geometry in Metric Spaces, 2023
This article analyses two schemes: Mann-type and viscosity-type proximal point algorithms. Using these schemes, we establish Δ-convergence and strong convergence theorems for finding a common solution of monotone vector field inclusion problems, a ...
Salisu Sani   +2 more
doaj   +1 more source

Partially relaxed cocoercive variational inequalities and auxiliary problem principle

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 2, Page 143-148, 2004., 2004
Let T : K → H be a mapping from a nonempty closed convex subset K of a finite‐dimensional Hilbert space H into H. Let f : K → ℝ be proper, convex, and lower semicontinuous on K and let h : K → ℝ be continuously Frećhet‐differentiable on K with h′ (gradient of h), α‐strongly monotone, and β‐Lipschitz continuous on K.
Ram U. Verma
wiley   +1 more source

NLS ground states on metric graphs with localized nonlinearities [PDF]

open access: yes, 2015
We investigate the existence of ground states for the focusing subcritical NLS energy on metric graphs with localized nonlinearities. In particular, we find two thresholds on the measure of the region where the nonlinearity is localized that imply ...
Tentarelli, Lorenzo
core   +2 more sources

Hemiequilibrium problems

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 3, Page 235-244, 2004., 2004
We consider a new class of equilibrium problems, known as hemiequilibrium problems. Using the auxiliary principle technique, we suggest and analyze a class of iterative algorithms for solving hemiequilibrium problems, the convergence of which requires either pseudomonotonicity or partially relaxed strong monotonicity. As a special case, we obtain a new
Muhammad Aslam Noor
wiley   +1 more source

Advances on the Bessis-Moussa-Villani Trace Conjecture [PDF]

open access: yes, 2005
A long-standing conjecture asserts that the polynomial \[p(t) = \text{Tr}[(A+tB)^m]\] has nonnegative coefficients whenever $m$ is a positive integer and $A$ and $B$ are any two $n \times n$ positive semidefinite Hermitian matrices. The conjecture arises
Hillar, Christopher J.
core   +6 more sources

A‐monotonicity and applications to nonlinear variational inclusion problems

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 2, Page 193-195, 2004., 2004
A new notion of the A‐monotonicity is introduced, which generalizes the H‐monotonicity. Since the A‐monotonicity originates from hemivariational inequalities, and hemivariational inequalities are connected with nonconvex energy functions, it turns out to be a useful tool proving the existence of solutions of nonconvex constrained problems as well.
Ram U. Verma
wiley   +1 more source

Optimal control of Allen-Cahn systems [PDF]

open access: yes, 2013
Optimization problems governed by Allen-Cahn systems including elastic effects are formulated and first-order necessary optimality conditions are presented.
Blank, Luise   +4 more
core   +3 more sources

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