The Modular Group Action on Real SL(2)-characters of a One-Holed Torus
The Modular Group Action on Real SL(2)-characters of a One-Holed Torus
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DOI:
10.2140/gt.2003.7.443
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发表时间:
2003-05
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影响因子:
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通讯作者:
W. Goldman
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文献类型:
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作者:
W. Goldman
The group Gamma of automorphisms of the polynomial kappa(x,y,z) = x^2 + y^2 + z^2 - xyz -2 is isomorphic to PGL(2,Z) semi-direct product with (Z/2+Z/2). For t in R, Gamma-action on ktR = kappa^{-1}(t) intersect R displays rich and varied dynamics. The action of Gamma preserves a Poisson structure defining a Gamma-invariant area form on each ktR. For t 18, in which case the Gamma-action on the complement ktR - Omega is ergodic.