Results 51 to 60 of about 2,279 (141)

Weak Solutions and Optimal Control of Hemivariational Evolutionary Navier-Stokes Equations under Rauch Condition

open access: yesJournal of Function Spaces, 2020
In this paper, we consider the evolutionary Navier-Stokes equations subject to the nonslip boundary condition together with a Clarke subdifferential relation between the dynamic pressure and the normal component of the velocity. Under the Rauch condition,
Hicham Mahdioui   +2 more
doaj   +1 more source

Optimizing condition numbers [PDF]

open access: yes, 2009
In this paper we study the problem of minimizing condition numbers over a compact convex subset of the cone of symmetric positive semidefinite $n\times n$ matrices. We show that the condition number is a Clarke regular strongly pseudoconvex function.
Jane J. Ye, Lewis A.S., Pierre Maréchal
core   +1 more source

Nonlocal Controllability of Sobolev-Type Conformable Fractional Stochastic Evolution Inclusions with Clarke Subdifferential

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2022
AbstractIn this paper, Sobolev-type conformable fractional stochastic evolution inclusions with Clarke subdifferential and nonlocal conditions are studied. By using fractional calculus, stochastic analysis, properties of Clarke subdifferential and nonsmooth analysis, sufficient conditions for nonlocal controllability for the considered problem are ...
Hamdy M. Ahmed, Maria Alessandra Ragusa
openaire   +2 more sources

Minimization of nonsmooth integral functionals

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
In this paper we examine optimization problems involving multidimensional nonsmooth integral functionals defined on Sobolev spaces. We obtain necessary and sufficient conditions for optimality in convex, finite dimensional problems using techniques from ...
Nikolaos S. Papageorgiou   +1 more
doaj   +1 more source

Optimality Conditions and Scalarization of Approximate Quasi Weak Efficient Solutions for Vector Equilibrium Problem

open access: yesComplexity, 2020
This paper is devoted to the investigation of optimality conditions for approximate quasi weak efficient solutions for a class of vector equilibrium problem (VEP).
Yameng Zhang, Guolin Yu, Wenyan Han
doaj   +1 more source

Reconstruction of the Clarke Subdifferential by the Lasry–Lions Regularizations

open access: yesJournal of Mathematical Analysis and Applications, 2000
Suppose that \(f\) is a locally Lipschitz function defined on a Hilbert space, which satisfies the growth condition \[ -{C\over 2}(\|x\|^2+ 1)\leq f(x)\leq {C\over 2}(\|x\|^2+ 1). \] It is proved that the Clarke subdifferential \(\partial f(x)\) (of \(f\) at \(x\)) can be represented by the derivatives of its Lasry-Lions regularizations \((f_\lambda ...
Georgiev, Pando Gr., Zlateva, Nadia P.
openaire   +2 more sources

Hilfer fractional evolution hemivariational inequalities with nonlocal initial conditions and optimal controls

open access: yesNonlinear Analysis, 2019
In this paper, we mainly consider a control system governed by a Hilfer fractional evolution hemivariational inequality with a nonlocal initial condition.
Yatian Pei, Yong-Kui Chang
doaj   +1 more source

Evolution inclusions with Clarke subdifferential type in Hilbert space

open access: yesMathematical and Computer Modelling, 2010
The authors consider the existence of solutions for differential inclusions of the form \[ \begin{aligned} -\dot{x}(t) &\in \partial _{C}\phi (x(t))+G(t,x(t)),\\ x(0) &=x_0\end{aligned}\tag{1} \] in a real, separable Hilbert space \(H\), where \(\partial _{C}\) denotes the Clarke subdifferential.
Qin, Sitian, Xue, Xiaoping
openaire   +1 more source

Characterization of the monotone polar of subdifferentials

open access: yes, 2013
We show that a point is solution of the Minty variational inequality of subdifferential type for a given function if and only if the function is increasing along rays starting from that point.
Lassonde, Marc
core   +3 more sources

Clarke subgradients of stratifiable functions [PDF]

open access: yes, 2006
We establish the following result: if the graph of a (nonsmooth) real-extended-valued function $f:\mathbb{R}^{n}\to \mathbb{R}\cup\{+\infty\}$ is closed and admits a Whitney stratification, then the norm of the gradient of $f$ at $x\in{dom}f$ relative to
Bolte, J.   +3 more
core   +3 more sources

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