Results 21 to 30 of about 292,354 (329)

Inertial projection methods for solving general quasi-variational inequalities

open access: yesAIMS Mathematics, 2021
In this paper, we consider a new class of quasi-variational inequalities, which is called the general quasi-variational inequality. Using the projection operator technique, we establish the equivalence between the general quasi-variational inequalities ...
Saudia Jabeen   +3 more
doaj   +1 more source

Variational Methods [PDF]

open access: yes, 2015
This contribution presents derivative-based methods for local sensitivity analysis, called Variational Sensitivity Analysis (VSA). If one defines an output called the response function, its sensitivity to inputs variations around a nominal value can be studied using derivative (gradient) information.
Nodet, Maelle, Vidard, Arthur
openaire   +3 more sources

Existence of solutions for a perturbed problem with logarithmic potential in $\mathbb{R}^2$

open access: yesMathematics in Engineering, 2020
We study a perturbed Schrödinger equation in the plane arising from the coupling of quantum physics with Newtonian gravitation. We obtain some existence results by means of a perturbation technique in Critical Point Theory.
Federico Bernini, Simone Secchi
doaj   +1 more source

VARIATIONAL METHODS IN IMAGE RECOVERY

open access: yesPesquimat, 2014
We study the semicuadratic minimization problem of the formthis functional arises in image recovery problems, when aimage that describe a real scene, consider like a function f: ΩR2 → R, is observed and reproduced like a function p: Ω R2 → R.
Víctor Osorio Vidal
doaj   +1 more source

Combined effects for a class of fractional variational inequalities [PDF]

open access: yesOpuscula Mathematica
In this paper, we study the existence of a nonnegative weak solution to the following nonlocal variational inequality: \[\int_{\mathbb{R}^N}(-\Delta)^{\frac{s}{2}} u (-\Delta)^{{\frac{s}{2}}}(v-u)dx+\int_{\mathbb{R}^N}(1+\lambda M(x))u(v-u)dx \geq \int_{\
Shengbing Deng   +2 more
doaj   +1 more source

Penalty methods for a variational quantum eigensolver

open access: yesPhysical Review Research, 2021
The variational quantum eigensolver (VQE) is a promising algorithm to compute eigenstates and eigenenergies of a given quantum system that can be performed on a near-term quantum computer.
Kohdai Kuroiwa, Yuya O. Nakagawa
doaj   +1 more source

To what extent is your data assimilation scheme designed to find the posterior mean, the posterior mode or something else?

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2016
Recently there has been a surge in interest in coupling ensemble-based data assimilation methods with variational methods (commonly referred to as 4DVar).
Daniel Hodyss   +2 more
doaj   +1 more source

Some new classes of general quasi variational inequalities

open access: yesAIMS Mathematics, 2021
In this paper, we introduce and consider some new classes of general quasi variational inequalities, which provide us with unified, natural, novel and simple framework to consider a wide class of unrelated problems arising in pure and applied sciences ...
Muhammad Aslam Noor   +2 more
doaj   +1 more source

On a variation of Sands′ method [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1986
A subset of a finite additive abelian group G is a Z‐set if for all a ∈ G, na ∈ G for all n ∈ Z. The group G is called “Z‐good” if in every factorization G = A ⊕ B, where A and B are Z‐sets at least one factor is periodic. Otherwise G is called “Z‐bad.”The purpose of this paper is to investigate factorizations of finite ablian groups which arise from a
openaire   +4 more sources

Modeling Variational Inpainting Methods With Splines

open access: yesFrontiers in Applied Mathematics and Statistics, 2019
Mathematical methods of image inpainting often involve the discretization of a given continuous model. Typically, this is done by a pointwise discretization.
Florian Boßmann   +2 more
doaj   +1 more source

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