An integrable flow on a family of Hilbert Grassmannians.
An integral formula for a Riemannian manifold with two orthogonal complementary distributions
An integral formula for closed surfaces and a generalization of -theorem
An integral formula for non-Codazzi tensors
An integral formula for submanifolds and its application
An integral formula for Willmore surfaces in an -dimensional sphere.
An integral formula in differential geometry via mixed exterior algebra.
An integral formula related to inner isoptics
An integral geometry problem along geodesics and a computational approach.
An integral geometry problem in a nonconvex domain.
An intrinsic characterization of Kähler manifolds.
An intrinsic definition of the Dirac operator.
An introduction to gerbes on orbifolds
This paper is a gentle introduction to some recent results involving the theory of gerbes over orbifolds for topologists, geometers and physicists. We introduce gerbes on manifolds, orbifolds, the Dixmier-Douady class, Beilinson-Deligne orbifold cohomology, Cheeger-Simons orbifold cohomology and string connections.
An introduction to spherical orbit spaces.
An introduction to symplectic topology
An introduction to the completeness of compact semi-riemannian manifolds
An invariant of nonpositively curved contact manifolds
We define an invariant of contact structures and foliations (on Riemannian manifolds of nonpositive sectional curvature) which is upper semi-continuous with respect to deformations and thus gives an obstruction to the topology of foliations which can be approximated by isotopies of a given contact structure.
An isoembolic pinching theorem.
An isoperimetric comparison theorem.
An -isolation theorem for Yang-Mills fields