Discontinuity of Lyapunov exponents for SL$(2,\mathbb{R})$ valued cocyclesWe exhibit an example of a discontinuity point for the Lyapunov exponents as a function of the cocycle in the Hölder topology. The linear cocycle taking values in SL$(2,\mathbb{R})$ is locally constant and defined over a Bernoulli shift. Our example extends Bocker-Viana's and Butler's results.
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