Quasi-minimal rotational surfaces in pseudo-Euclidean four-dimensional space

by Ganchev Georgi, Milousheva Velichka
Published 2014-10-01

Space-like Weingarten surfaces in the three-dimensional Minkowski space and their natural partial differential equations

by Ganchev Georgi, Mihova Vesselka
Published 2013-01-01

Kähler manifolds of quasi-constant holomorphic sectional curvatures

by Ganchev Georgi, Mihova Vesselka
Published 2008-03-01

Invariants and Bonnet-type theorem for surfaces in ℝ4

by Ganchev Georgi, Milousheva Velichka
Published 2010-12-01