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We show two constructions of surface bundles over Riemann surfaces admitting nonvanishing signatures.
Inherently Improper Surface Parametric Supports
Inherently improper supports improper parametrizations support transformation reparametrization
2013/9/9
We identify a class of monomial supports that are inherently improper because any surface rational parametrization defined on them is improper. A surface support is inherently improper if and only if ...
The Pitch and the Pseudo Angle of Pitch of a Closed Piece of (k+1)-Dimensional Ruled Surface in R\nun
Minkowski space Ruled surface Closed ruled surface Pitch Pseudo Angle of pitch
2010/2/26
In this paper, we define the closed piece of ruled surface, the pitch and the pseudo angle of pitch of a closed piece of ruled surface and calculate these values in Minkowski space R\nun= (R n,-\sumni...
Some Results on Space-Like Line Congruences and Their Space-Like Parameter Ruled Surface
Space-Like Line Congruences Space-Like Parameter Ruled Surface
2010/3/3
Using dual vectors, space-like ruled surfaces was introduced in [2]. In this paper, we define space-like line congruence and their space-like parameter ruled surfaces {\mathbf R11(t)} and {\mathbf R21...