Professor of Mathematics
Research Interests: Differential Geometry, Analysis and Dynamical Systems. Geometric inverse problems, especially geodesic ray transforms.
Publications
Critical values of autonomous Lagrangian systems
– Commentarii Mathematici Helvetici
(1997)
72,
481
(doi: 10.1007/s000140050029)
Topological entropy for geodesic flows on fibre bundles over rationally hyperbolic manifolds
– Proceedings of the American Mathematical Society
(1997)
125,
2759
Finsler structures on surfaces with negative Euler characteristic
– HOUSTON J MATH
(1997)
23,
421
Topological entropy and magnetic fields
(1997)
47
On the growth of the number of geodesics joining two points
(1996)
362,
7
Anosov geodesic flows and twisted symplectic structures
(1996)
362,
132
On Anosov energy levels of convex Hamiltonian systems
– Mathematische Zeitschrift
(1994)
217,
367
(doi: 10.1007/bf02571949)
On Anosov energy levels of Hamiltonians on twisted cotangent bundles
– Boletim da Sociedade Brasileira de Matem�tica
(1994)
25,
207
(doi: 10.1007/bf01321308)
On the topology of manifolds with completely integrable geodesic flows II
– Journal of Geometry and Physics
(1994)
13,
289
(doi: 10.1016/0393-0440(94)90036-1)
EXPANSIVITY FOR OPTICAL HAMILTONIAN-SYSTEMS WITH 2 DEGREES OF FREEDOM
– CR ACAD SCI I-MATH
(1993)
316,
837
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