2 citations · 2 across the 5 of their papers we have counts for
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On complete affine structures in Lie groups
V. M. Gichev
Left invariant affine structures in a Lie group are in one-to-one correspondence with left-symmetric algebras over its Lie algebra (``over'' means that the c…
A note on common zeroes of Laplace--Beltrami eigenfunctions
V. M. Gichev
Let $\De u+\la u=\De v+\la v=0$, where $\De$ is the Laplace--Beltrami operator on a compact connected smooth manifold and $\la>0$. If then there exists such…
On Geometry of Flat Complete Strictly Causal Lorentzian Manifolds
V. M. Gichev, E. A. Meshcheryakov
A flat complete causal Lorentzian manifold is called {\it strictly causal} if the past and the future of each its point are closed near this point. We consider strictly causal mani…
On flat complete causal Lorentzian manifolds
V. M. Gichev, O. S. Morozov
We describe up to finite coverings causal flat affine complete Lorentzian manifolds such that the past and the future of any point are closed near this point. We say that these man…