Results 271 to 280 of about 933,606 (309)

An existence result of periodic solutions

Applied Mathematics and Computation, 2001
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Some existence and non‐existence results for a homogeneous quasilinear problem

Asymptotic Analysis, 1998
The authors study criteria for existence and nonexistence of positive solutions to the quasilinear equation \[ -(r^{\alpha}|u'(r)|^{\beta-1}u'(r))' = r^{\gamma}F(r,u), \quad r>0, \tag{*} \] where \(\alpha\), \(\beta\), \(\gamma\) are positive parameters and \(F\geq 0\).
MITIDIERI, ENZO, CLEMENT PH, MANASEVICH R.   +2 more
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Semicontinuity and Existence Results

1999
Abstract According to our previous considerations, in order to apply the direct methods to integral functionals : F(u) on Sobolev spaces or in the class of absolutely continuous functions, the key point is a semicontinuity theorem with respect to weak convergence in Sobolev spaces.
Giuseppe Buttazzo, Mariano Giaquinta, Stefan Hildebrandt   +2 more
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Equilibrium Problems: Existence Results and Applications

Set-Valued and Variational Analysis, 2017
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Cotrina, John, García, Yboon
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Existence and Uniqueness Results

1994
Existence and uniqueness theorems play a very central part in the theory of partial differential equations, particularly in the context of mathematical physics. The well-posedness of a Cauchy or boundary value problem is of tantamount importance for the physical interpretation and/or practical application of the equation under consideration.
Carlo Cercignani, Reinhard Illner, Mario Pulvirenti   +2 more
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Non-Existence Results

1990
Abstract In this chapter we return at last to address some of the problems in fourmanifold topology which were raised in Chapter 1. We will prove Theorems (1.3.1) and (1.3.2) on the non-existence of manifolds with certain intersection forms. Throughout the chapter, the strategy of proof of these non-existence results will be the same.
S k. Donaldson, P B Kronheimer
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Comparison of Existence Results for Efficient Points

Journal of Optimization Theory and Applications, 2000
The paper develops a classification of most known existence results for efficient points that is based on general existence results for maximal elements with respect to transitive relations. By associating a reflexive and transitive relation with a convex cone, existence results for maximal points with respect to general transitive relations are ...
Sonntag, Y., Zălinescu, C.
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Existence and Uniqueness Results

1990
In this chapter the existence of the Nash-Cournot equilibrium point in the multiproduct oligopoly game will be first investigated. Then on the basis of the general results special cases will be examined. These include models with product differentiation and the classical Cournot model.
Koji Okuguchi, Ferenc Szidarovszky
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Other Existence Results

1997
In this chapter we present existence results that do not use the bounded variation technique. In particular, we shall provide a modern proof of the Folklore Theorem which established the existence of absolutely continuous invariant measure for Markov transformations. Inspired by number theoretical questions Renyi [1957] proved the first version of this
Abraham Boyarsky, Paweł Góra
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Existence and Multiplicity Results for Kirchhoff Problems

Mediterranean Journal of Mathematics, 2017
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Mao, Anmin, Zhu, Xincai
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