The X-ray transform on a general family of curves on Finsler surfaces

Details The X-ray transform on a general family of curves on Finsler surfaces The X-ray transform on a general family of curves on Finsler surfaces

2012-04-19

arxiv.org/abs/1204.4383v1

Mathematics

Differential Geometry

25 pages

Scientific paper

We consider a general family of curves $\Gamma$ on a compact oriented Finsler surface $(M,F)$ with boundary $\partial M$. Let $\varphi\in C^{\infty}(M)$ and $\omega$ a smooth 1-form on $M$. We show that $$\int_{\gamma(t)}\{\varphi(\gamma(t))+\omega_{\gamma(t)}(\dot{\gamma}(t))\}\,dt=0$$ holds for every $\gamma\in\Gamma$ whose endpoints belong to $\partial M$, $\gamma(a)\in\partial M$, $\gamma(b)\in\partial M$ if and only if $\varphi=0$ and $\omega$ is exact. Similar results were proved when $M$ is closed and some additional conditions on Gaussian curvature are imposed. We also study the cohomological equations of Anosov generelized thermostats on a closed Finsler surface. Finally, we gave conditions when thermostat is of Anosov type.

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