# American Institute of Mathematical Sciences

2011, 18: 22-30. doi: 10.3934/era.2011.18.22

## Realization of joint spectral radius via Ergodic theory

 1 Department of Mathematics, Nanjing University, Nanjing, 210093 2 Department of Mathematics, Zhongshan University, Guangzhou 510275 3 Department of Mathematics, Southern Illinois University, Carbondale, IL 62901

Received  August 2010 Revised  March 2011 Published  June 2011

Based on the classic multiplicative ergodic theorem and the semi-uniform subadditive ergodic theorem, we show that there always exists at least one ergodic Borel probability measure such that the joint spectral radius of a finite set of square matrices of the same size can be realized almost everywhere with respect to this Borel probability measure. The existence of at least one ergodic Borel probability measure, in the context of the joint spectral radius problem, is obtained in a general setting.
Citation: Xiongping Dai, Yu Huang, Mingqing Xiao. Realization of joint spectral radius via Ergodic theory. Electronic Research Announcements, 2011, 18: 22-30. doi: 10.3934/era.2011.18.22
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