6 citations · 16 across the 10 of their papers we have counts for
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Relation between the minimal Lorentz surfaces in and
Krasimir Kanchev, Ognian Kassabov, Velichka Milousheva
In this paper we give Weierstrass-type representation formulas for the null curves and for the minimal Lorentz surfaces in the Minkowski 3-space using real-valued f…
Canonical Coordinates and Natural Equation for Lorentz Surfaces in
Krasimir Kanchev, Ognian Kassabov, Velichka Milousheva
We consider Lorentz surfaces in satisfying the condition , where and are the Gauss curvature and the mean curvature, respectively, and call the…
Explicit Solving of the System of Natural PDEs of Minimal Lorentz Surfaces in
Krasimir Kanchev, Ognian Kassabov, Velichka Milousheva
A minimal Lorentz surface in is said to be of general type if its corresponding null curves are non-degenerate. These surfaces admit canonical isothermal and canoni…
Canonical Coordinates and Natural Equations for Minimal Time-like Surfaces in
Georgi Ganchev, Krasimir Kanchev
We apply the complex analysis over the double numbers to study the minimal time-like surfaces in . A minimal time-like surface which is free of degenerate points is said…
Canonical coordinates on minimal time-like surfaces in the n-dimensional Minkowski space
Georgi Ganchev, Krasimir Kanchev
We introduce canonical coordinates on minimal time-like surfaces in the n-dimensional Minkowski space and prove the existence and the uniqueness of these parameters. With respect t…
Canonical Weierstrass Representations for Maximal Space-like Surfaces in $\RR^4_2$
Georgi Ganchev, Krasimir Kanchev
It is known that any maximal space-like surface without isotropic points in the four-dimensional pseudo-Euclidean space with neutral metric admits locally geometric parameters whic…
Explicit Solving of the System of Natural PDE's of Minimal Space-like Surfaces in Minkowski Space-time
Georgi Ganchev, Krasimir Kanchev
A minimal space-like surface in Minkowski space-time is said to be of general type if it is free of degenerate points. The fact that minimal space-like surfaces of general type in…
Canonical Weierstrass representations for minimal space-like surfaces in $\RR^4_1$
Georgi Ganchev, Krasimir Kanchev
A space-like surface in Minkowski space-time is minimal if its mean curvature vector field is zero. Any minimal space-like surface of general type admits special isothermal paramet…
Canonical Weierstrass representations for minimal surfaces in Euclidean 4-space
Georgi Ganchev, Krasimir Kanchev
Minimal surfaces of general type in Euclidean 4-space are characterized with the conditions that the ellipse of curvature at any point is centered at this point and has two differe…
Explicit Solving of the System of Natural PDE's of Minimal Surfaces in the Four-Dimensional Euclidean Space
Georgi Ganchev, Krasimir Kanchev
The fact that minimal surfaces in the four-dimensional Euclidean space admit natural parameters implies that any minimal surface is determined uniquely up to a motion by two curvat…