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zbMath0699.53051MaRDI QIDQ3477620

Sergei V. Buyalo

Publication date: 1989

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

fundamental group geodesic flow closed geodesics nonpositive sectional curvature 2-flats

Mathematics Subject Classification ID

Global Riemannian geometry, including pinching (53C20) Geodesic flows in symplectic geometry and contact geometry (53D25) Dynamical systems of geometric origin and hyperbolicity (geodesic and horocycle flows, etc.) (37D40)

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