RUS  ENG
Full version
JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

PFMT, 2012 Issue 3(12), Pages 43–47 (Mi pfmt42)

MATHEMATICS

On spectral properties of weighted shift operators generated by linear mappings with perron’s conditions

A. A. Ahmatova

Belarusian State University, Minsk

Abstract: Weighted shift operators $B$ in the space $L_2 (\mathbb{C}^m )$ generated by a linear mapping $A\colon\mathbb{C}^m \to \mathbb{C}^m$ are considered. A description of properties of $B - \lambda I$ for $\lambda$ belonging to spectrum $\sum(B)$ is given. In particular, the necessary and sufficient condition for $B - \lambda I$ to be one-sided invertible is obtained.

Keywords: weighted shift operators, spectrum, one-sided invertibility, invariant measure, decomposition of oriented graph.

UDC: 517.984

Received: 30.04.2012



© Steklov Math. Inst. of RAS, 2025