نتایج جستجو برای: semilinear transformation

تعداد نتایج: 225535  

Journal: :Kybernetika 2007
Bernard De Baets Hans De Meyer Radko Mesiar

We complement the recently introduced classes of lower and upper semilinear copulas by two new classes, called vertical and horizontal semilinear copulas, and characterize the corresponding class of diagonals. The new copulas are in essence asymmetric, with maximum asymmetry given by 1/16. The only symmetric members turn out to be also lower and upper semilinear copulas, namely convex sums of Π...

2011
Minh-Binh TRAN

In this paper, we partially answer open questions about the convergence of overlapping Schwarz methods. We prove that overlapping Schwarz methods with Dirichlet transmission conditions for semilinear elliptic and parabolic equations always converge, while overlapping Schwarz methods with Robin transmission conditions only converge for semilinear parabolic equations, but the convergence is not g...

2012
Hailong Zhu Zhaoxiang Li

Semilinear elliptic equations are ubiquitous in natural sciences. They give rise to a variety of important phenomena in quantum mechanics, nonlinear optics, astrophysics, etc because they have rich multiple solutions. But the nontrivial solutions of semilinear equations are hard to be solved for the lack of stabilities, such as Lane-Emden equation, Henon equation and Chandrasekhar equation. In ...

Journal: :J. Comput. Syst. Sci. 2016
Peter Jonsson Johan Thapper

A semilinear relation is a finite union of finite intersections of open and closed half-spaces over, for instance, the reals, the rationals, or the integers. Semilinear relations have been studied in connection with algebraic geometry, automata theory, and spatiotemporal reasoning. We consider semilinear relations over the rationals and the reals. Under this assumption, the computational comple...

2009
CLAUDIO CUEVAS CARLOS LIZAMA

We study S-asymptotically ω-periodic mild solutions of the semilinear Volterra equation u′(t) = (a ∗ Au)(t) + f(t, u(t)), considered in a Banach space X, where A is the generator of an (exponentially) stable resolvent family. In particular, we extend recent results for semilinear fractional integro-differential equations considered in [4] and for semilinear Cauchy problems of first order given ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1377

this thesis deals essentially (but not from all aspects) with the extension of the notion of semigroup compactification and the construction of a general theory of semitopological nonaffine (affine) transformation semigroup compactifications. it determines those compactification which are universal with respect to some algebric or topological properties. as an application of the theory, it is i...

Journal: :Int. J. Math. Mathematical Sciences 2006
Zuodong Yang

Our goal is to establish the theorems of existence and multiple of positive entire solutions for a class quasilinear elliptic equations in RN with the Schauder-Tychonoff fixed point theorem as the principal tool. In many articles, the theorems of existence and multiple of positive entire solutions for a class semilinear elliptic equations are established. The results of the semilinear equations...

2009
Deli Wang Jian Huang Matthew J. Callow Sandrine Dudoit Elaine L. Gong Terence P. Speed Edward M. Rubin

April 19, 2009 Version 1.0.2 Date 2007-07-13 Maintainer Deli Wang Author Deli Wang, Jian Huang Depends splines Title A two-way semilinear model for normalization and analysis of cDNA microarray data. Description twslm is for normalization of cDNA microarray data with the two-way semilinear model. Huber’s and Tukey’s bisquare weight functions are available for robust esti...

Journal: :Journal of Differential Equations 2022

In this paper, the asymptotic behavior of a semilinear heat equation with long time memory and non-local diffusion is analyzed in usual set-up for dynamical systems generated by differential equations delay terms. This approach different from ones used previous published literature on memory, which carried out Dafermos transformation. As consequence, obtained results provide complete informatio...

Journal: :Systems & Control Letters 2013
Mahmoud Baroun Birgit Jacob Lahcen Maniar Roland Schnaubelt

In this paper, we introduce locally Lipschitz observation systems for nonlinear semigroups and show that they can be represented by an ‘admissible’ nonlinear output operator defined on a suitable subspace. In the semilinear case, this concept fits well to the Lebesgue extension known from linear system theory. Also in the semilinear case, we show robustness of exact observability near equilibri...

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