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arXiv · 1001.3014

Absolutely Continuous Invariant Measures of Piecewise Linear Lorenz Maps

Yi Ming Ding·Ai Hua Fan·Jing Hu Yu
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Abstract

Consider piecewise linear Lorenz maps on $[0, 1]$ of the following form \[ f_{a,b,c}(x)= {ll} ax+1-ac & x \in [0, c) b(x-c) & x \in (c, 1].\] We prove that $f_{a,b,c}$ admits an absolutely continuous invariant probability measure (acim) $μ$ with respect to the Lebesgue measure if and only if $f_{a,b,c}(0) \le f_{a,b,c}(1)$, i.e. $ac+(1-c)b \ge 1$. The acim is unique and ergodic unless $f_{a,b,c}$ is conjugate to a rational rotation. The equivalence between the acim and the Lebesgue measure is also fully investigated via the renormalization theory.

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Yi Ming Ding, Ai Hua Fan, Jing Hu Yu. 2010-01-18. Absolutely Continuous Invariant Measures of Piecewise Linear Lorenz Maps. https://arxiv.org/abs/1001.3014

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