Canonical form on a groupoid related to regular prolongations of Lie groups
Characterization of Riemannian Manifolds with Weak Homology Group G2 (Following A. Gray).
Classification of invariant AHS-structures on semisimple locally symmetric spaces
We discuss which semisimple locally symmetric spaces admit an AHS-structure invariant under local symmetries. We classify them for all types of AHS-structures and determine possible equivalence classes of such AHS-structures.
Classification of principal connections naturally induced on
We consider a vector bundle and the principal bundle of frames of . Let be a principal connection on and let be a linear connection on . We classify all principal connections on naturally given by and .
Cohomogeneity and positive curvature in low dimensions.
Conditions for integrability of a 3-form
We find necessary and sufficient conditions for the integrability of one type of multisymplectic 3-forms on a 6-dimensional manifold.
Congruences of surfaces in
Connections partially adapted to a metric -structure
Conservation laws and string-like matter distributions
Constant mean curvature palnes with inner rotational symmetry in Euclidean 3-space.