نتایج جستجو برای: ‎variational methods‎

تعداد نتایج: 1898878  

Journal: :bulletin of the iranian mathematical society 0
h. shi school of mathematics and statistics‎, ‎central south university‎, ‎changsha‎, ‎410083 hunan‎, ‎p‎. ‎r‎. ‎china. h. chen school of mathematics and statistics‎, ‎central south university‎, ‎changsha‎, ‎410083 hunan‎, ‎p‎. ‎r‎. ‎china.

in this paper‎, ‎we consider the following kirchhoff-type equations‎: ‎$-‎left(a+bint_{mathbb{r}^{3}}|nabla u|^{2}right)delta u+v(x) u=lambda$ $f(x,u)+u^{5}‎, ‎quad mbox{in }mathbb{r}^{3},$ ‎$u(x)>0‎, ‎quad mbox{in }mathbb{r}^{3},$ ‎$uin h^{1}(mathbb{r}^{3})‎ ,‎$ ‎ ‎‎‎where $a,b>0$ are constants and $lambda$ is a positive parameter‎. ‎the aim of this paper is to study the existence of positive ...

Journal: :journal of physical & theoretical chemistry 2015
maryam gholami mohammad norouzi

this study presents a comparative survey of direct methods for solving variational problems. thisproblems can be used to solve various differential equations in physics and chemistry like rateequation for a chemical reaction. there are procedures that any type of a differential equation isconvertible to a variational problem. therefore finding the solution of a differential equation isequivalen...

Journal: :caspian journal of mathematical sciences 2015
gh. karamali m. koozehgar kalleji

Journal: :Journal of Pressure Vessel Technology 1993

Journal: :IEEE Transactions on Image Processing 2008

2015
Ian Gemp Sridhar Mahadevan Bo Liu

In this paper, we explore a new approach to computational sustainability based on variational inequalities (VIs). Our challenge is to compute the steady state behaviors of networks of supply chains with possibly conflicting objectives. VIs provide a way to handle this problem of modeling large networks with numerous conflicting goals. Given the size of real-world networks, suitable algorithms m...

Journal: :international journal of nonlinear analysis and applications 0
samad mohseni kolagar department of mathematics, faculty of mathematical sciences, university of mazandaran, babolsar, iran ghasem a. afrouzi department of mathematics, faculty of mathematical sciences, university of mazandaran, babolsar, iran armin hadjian department of mathematics, faculty of basic sciences, university of bojnord, p.o. box 1339, bojnord 94531, iran

in this paper, under appropriate oscillating behaviours of the nonlinear term, we prove some multiplicity results for a class of nonlinear fractional equations. these problems have a variational structure and we find three solutions for them by exploiting an abstract result for smooth functionals defined on a reflexive banach space. to make the nonlinear methods work, some careful analysis of t...

Journal: :Progress of Theoretical Physics 1956

Journal: :Czechoslovak Mathematical Journal 1971

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