Results 21 to 30 of about 165,937,781 (144)

The discrete fragmentation equations : semigroups, compactness and asynchronous exponential growth [PDF]

open access: yes, 2012
In this paper we present a class of fragmentation semigroups which are compact in a scale of spaces defined in terms of finite higher moments. We use this compactness result to analyse the long time behaviour of such semigroups and, in particular, to ...
Banasiak, Jacek, Lamb, Wilson
core   +4 more sources

The Bergman property for semigroups [PDF]

open access: yes, 2009
In this article, we study the Bergman property for semigroups and the associated notions of cofinality and strong cofinality. A large part of the paper is devoted to determining when the Bergman property, and the values of the cofinality and strong ...
Ruskuc, N.   +7 more
core   +1 more source

Generating continuous mappings with Lipschitz mappings [PDF]

open access: yes, 2007
If X is a metric space, then C-X and L-X denote the semigroups of continuous and Lipschitz mappings, respectively, from X to itself. The relative rank of C-X modulo L-X is the least cardinality of any set U\L-X where U generates C-X. For a large class of
Mitchell, James David   +2 more
core   +1 more source

Classification and enumeration of finite semigroups [PDF]

open access: yes, 2010
The classification of finite semigroups is difficult even for small orders because of their large number. Most finite semigroups are nilpotent of nilpotency rank 3.
Distler, Andreas
core   +2 more sources

Convolution semigroups of states. [PDF]

open access: yes, 2011
Convolution semigroups of states on a quantum group form the natural noncommutative analogue of convolution semigroups of probability measures on a locally compact group.
Lindsay, Martin, Skalski, Adam G.
core   +4 more sources

Nonlinear ergodic theorems for asymptotically almost nonexpansive curves in a Hilbert space

open access: yesAbstract and Applied Analysis, 2000
We introduce the notion of asymptotically almost nonexpansive curves which include almost-orbits of commutative semigroups of asymptotically nonexpansive type mappings and study the asymptotic behavior and prove nonlinear ergodic theorems for such curves.
Gang Li, Jong Kyu Kim
doaj   +1 more source

A note on Kakutani type fixed point theorems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
We present Kakutani type fixed point theorems for certain semigroups of self maps by relaxing conditions on the underlying set, family of self maps, and the mappings themselves in a locally convex space setting.
A. R. Khan, N. Hussain, L. A. Khan
doaj   +1 more source

A Kallman-Rota Inequality for Evolution Semigroups [PDF]

open access: yes, 2002
A Kallman-Rota type inequality for evolution semigroups and applications for real valued functions are ...
Dragomir, Sever S, Buşe, Constantin
core   +6 more sources

Unary FA-presentable semigroups [PDF]

open access: yes, 2012
Automatic presentations, also called FA-presentations, were introduced to extend nite model theory to innite structures whilst retaining the solubility of interesting decision problems.
Cain, Alan James   +2 more
core   +1 more source

A General Class of Differential Hemivariational Inequalities Systems in Reflexive Banach Spaces

open access: yesMathematics, 2021
We consider an abstract system consisting of the parabolic-type system of hemivariational inequalities (SHVI) along with the nonlinear system of evolution equations in the frame of the evolution triple of product spaces, which is called a system of ...
Lu-Chuan Ceng   +3 more
doaj   +1 more source

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