A note on pseudocongruences in semigroups.
Kehayopulu, N., Tsingelis, M. (2002)
Lobachevskii Journal of Mathematics
Similarity:
Kehayopulu, N., Tsingelis, M. (2002)
Lobachevskii Journal of Mathematics
Similarity:
B. M. Schein (1971)
Colloquium Mathematicae
Similarity:
M. Erné, J.Z. Reichman (1986-1987)
Semigroup forum
Similarity:
Elisabetta M. Mangino, Alfredo Peris (2011)
Studia Mathematica
Similarity:
We study frequent hypercyclicity in the context of strongly continuous semigroups of operators. More precisely, we give a criterion (sufficient condition) for a semigroup to be frequently hypercyclic, whose formulation depends on the Pettis integral. This criterion can be verified in certain cases in terms of the infinitesimal generator of the semigroup. Applications are given for semigroups generated by Ornstein-Uhlenbeck operators, and especially for translation semigroups on weighted...
Jacek Banasiak, Mirosław Lachowicz (2007)
Studia Mathematica
Similarity:
We show that the result of Kato on the existence of a semigroup solving the Kolmogorov system of equations in l₁ can be generalized to a larger class of the so-called Kantorovich-Banach spaces. We also present a number of related generation results that can be proved using positivity methods, as well as some examples.
B. M. Schein (1974)
Colloquium Mathematicae
Similarity:
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.
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.
A. Batbedat, J.B. Fountain (1981)
Semigroup forum
Similarity:
Anzelm Iwanik (1977)
Colloquium Mathematicae
Similarity:
J. P. Holmes (1974)
Colloquium Mathematicae
Similarity: