نتایج جستجو برای: hessian sectional curvature
تعداد نتایج: 239320 فیلتر نتایج به سال:
2009
WOLFGANG ZILLER
Spaces of positive curvature play a special role in geometry. Although the class of manifolds with positive (sectional) curvature is expected to be relatively small, so far there are only a few known obstructions. Moreover, for closed simply connected manifolds these coincide with the known obstructions to nonnegative curvature which are: (1) the Betti number theorem of Gromov which asserts tha...
Journal:
:Differential Geometry and its Applications
2010
Journal:
:Journal of Differential Geometry
1977
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:Geometriae Dedicata
2015
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:The Journal of Geometric Analysis
2018
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:Regular and Chaotic Dynamics
2018
Journal:
:Differential Geometry and its Applications
2009
Journal:
:Journal of Differential Geometry
1973
Journal:
:Journal of Differential Geometry
1999
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