Wednesday, November 21, 2012

Harmonic Analysis Tools in the Study of Lyapunov Exponents

Silvius Klein
(Institute of Mathematics "Simion Stoilow" of the Romanian Academy (IMAR), Bucharest)

Abstract: In this expository talk I will review some estimates on subharmonic functions that are relevant to the study of positivity and continuity properties of Lyapunov exponents associated to Schroedinger (or more general linear) co-cycles. Some of the tools needed in obtaining such estimates are the harmonic measure and Riesz' representation theorem for subharmonic functions, which will also be briefly reviewed.

Wednesday, November 21, 2012
Time: 15h00
Room: B3-01, Complexo Interdisciplinar, UL