Function ∪-semigroups
B. M. Schein (1974)
Colloquium Mathematicae
Similarity:
B. M. Schein (1974)
Colloquium Mathematicae
Similarity:
J. P. Holmes (1974)
Colloquium Mathematicae
Similarity:
Anzelm Iwanik (1977)
Colloquium Mathematicae
Similarity:
Bálint Farkas (2004)
Studia Mathematica
Similarity:
The notion of bi-continuous semigroups has recently been introduced to handle semigroups on Banach spaces that are only strongly continuous for a topology coarser than the norm-topology. In this paper, as a continuation of the systematic treatment of such semigroups started in [20-22], we provide a bounded perturbation theorem, which turns out to be quite general in view of various examples.
J. Gilewski (1972)
Colloquium Mathematicae
Similarity:
Kar-Ping Shum, Lan Du, Yuqi Guo (2010)
Discussiones Mathematicae - General Algebra and Applications
Similarity:
Green's relations and their generalizations on semigroups are useful in studying regular semigroups and their generalizations. In this paper, we first give a brief survey of this topic. We then give some examples to illustrate some special properties of generalized Green's relations which are related to completely regular semigroups and abundant semigroups.
Sheng Wang Wang (2002)
Studia Mathematica
Similarity:
Motivated by a great deal of interest recently in operators that may not be densely defined, we deal with regularized semigroups and integrated semigroups that are either not exponentially bounded or not defined on [0,∞) and generated by closed operators which may not be densely defined. Some characterizations and related examples are presented. Our results are extensions of the corresponding results produced by other authors.
A. Batbedat, J.B. Fountain (1981)
Semigroup forum
Similarity:
Miao Li, Quan Zheng (2003)
Studia Mathematica
Similarity:
We investigate the relations between local α-times integrated semigroups and (α + 1)-times integrated Cauchy problems, and then the relations between global α-times integrated semigroups and regularized semigroups.
N. Tanaka (1990)
Semigroup forum
Similarity:
B. M. Schein (1973)
Colloquium Mathematicae
Similarity:
Alair Pereira do Lago, Imre Simon (2010)
RAIRO - Theoretical Informatics and Applications
Similarity:
This paper surveys the area of Free Burnside Semigroups. The theory of these semigroups, as is the case for groups, is far from being completely known. For semigroups, the most impressive results were obtained in the last 10 years. In this paper we give priority to the mathematical treatment of the problem and do not stress too much neither motivation nor the historical aspects. No proofs are presented in this paper, but we tried to give as many examples as was possible. ...
Kehayopulu, N., Tsingelis, M. (2002)
Lobachevskii Journal of Mathematics
Similarity:
Michael Friedberg (1972)
Colloquium Mathematicae
Similarity:
Janusz Woś (1982)
Colloquium Mathematicae
Similarity:
Michael Skeide (2010)
Banach Center Publications
Similarity:
We define spatial CPD-semigroups and construct their Powers sum. We construct the Powers sum for general spatial CP-semigroups. In both cases, we show that the product system of that Powers sum is the product of the spatial product systems of its factors. We show that on the domain of intersection, pointwise bounded CPD-semigroups on the one side and Schur CP-semigroups on the other, the constructions coincide. This summarizes all known results about Powers sums and generalizes them...