Results 1 to 10 of about 153 (145)
Semigroups of mappings on graphs
Semigroup Forum, 1983 At present, there are quite a few investigations in the theory of semigroups devoted to semigroups of mappings on graphs. Up to now, endomorphism semigroups of graphs, extensive transformation semigroups of graphs, coloring semigroups of graphs and other semigroups of special mappings on graphs have been studied.
V A Molchanov
exaly +2 more sources
Characterizing some regularities of ordered semigroups by their anti-hybrid ideals [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2022 We focus on mappings called hybrid structures. A hybrid structure can be regarded as a combination of a soft set and a fuzzy set. Therefore, with the help of the products of union softs sets and fuzzy sets, we can define a new product of hybrid ...
Krittika Linesawat, Somsak Lekkoksung
doaj +1 more source
Elementary definability of the class of universal hypergraphic automata in the class of semigroups [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022 Hypergraphic automata are automata, state sets and output symbol sets of which are hypergraphs, being invariant under actions of transition and output functions. Universally attracting objects in the category of hypergraphic automata are called universal
Molchanov, Vladimir Aleksandrovich +1 more
doaj +1 more source
Contractification of a Semigroup of Maps [PDF]
Proceedings of the American Mathematical Society, 1979 Let ( X , τ
Ko, Hwei-Mei, Tan, Kok-Keong
openaire +2 more sources
On the semigroup of differentiable mappings (II) [PDF]
Glasgow Mathematical Journal, 1972 In [2], K. D. Magill, Jr. has proved that every automorphism of the semigroup (with respect to composition) of all real-valued differentiable functions of a real variable is inner. The purpose of this paper is to generalize this fact to arbitrary finite-dimensional real Banach spaces.
Wood, G. R., Yamamuro, Sadayuki
openaire +2 more sources
Fixed Point Theory and Applications, 2010 Motivated by the method of Xu (2006) and Matsushita and Takahashi (2008), we characterize the set of all common fixed points of a family of nonexpansive mappings by the notion of Mosco convergence and prove strong convergence theorems for nonexpansive ...
Kazuhide Nakajo, Yasunori Kimura
doaj +2 more sources
Semigroup Actions of Expanding Maps [PDF]
Journal of Statistical Physics, 2016 A few typos were corrected, Sections 8 and 9 were improved and a variational relation for the relative entropy has been included in Section ...
Maria Carvalho +2 more
openaire +4 more sources
Fixed point theorems for a semigroup of total asymptotically nonexpansive mappings in uniformly convex Banach spaces [PDF]
Opuscula Mathematica, 2014 In this paper, we provide existence and convergence theorems of common fixed points for left (or right) reversible semitopological semigroups of total asymptotically nonexpansive mappings in uniformly convex Banach spaces.
Suthep Suantai, Withun Phuengrattana
doaj +1 more source
On a Class of Differential Variational Inequalities in Infinite-Dimensional Spaces
Mathematics, 2021 A new class of differential variational inequalities (DVIs), governed by a variational inequality and an evolution equation formulated in infinite-dimensional spaces, is investigated in this paper.
Savin Treanţă
doaj +1 more source
On Uniformly Generalized Lipschitzian Mappings
Fixed Point Theory and Applications, 2010 We consider another class of generalized Lipschitzian type mappings and utilize the same to prove fixed point theorems for asymptotically regular and uniformly generalized Lipschitzian one-parameter semigroups of self-mappings defined on bounded metric ...
Ahmed H. Soliman, M. Imdad
doaj +2 more sources