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• # Artykuł - szczegóły

## Studia Mathematica

2008 | 187 | 1 | 37-58

## Classes of distribution semigroups

EN

### Abstrakty

EN
We introduce various classes of distribution semigroups distinguished by their behavior at the origin. We relate them to quasi-distribution semigroups and integrated semigroups. A class of such semigroups, called strong distribution semigroups, is characterized through the value at the origin in the sense of Łojasiewicz. It contains smooth distribution semigroups as a subclass. Moreover, the analysis of the behavior at the origin involves intrinsic structural results for semigroups. To this purpose, new test function spaces and distribution semigroups over these spaces are introduced. We give applications to Schrödinger type equations in the spaces $C_{b}$, $L^{∞}$, and BMO with elliptic non-densely defined operators.

37-58

wydano
2008

### Twórcy

• Mathematisches Institut I, Universität Karlsruhe, Englerstr. 2, D-76128 Karlsruhe, Germany
autor
• Department of Mathematics and Informatics, University of Novi Sad, Trg D. Obradovića 4, 21 000 Novi Sad, SCG
autor
• Department of Mathematics and Informatics, University of Novi Sad, Trg D. Obradovića 4, 21 000 Novi Sad, SCG