Results 61 to 70 of about 2,226,189 (161)

Neutral surfaces in neutral four-spaces

open access: yesLe Matematiche, 1990
Properties of the Gauss map of neutral surfaces are studied. Special attention is given to surfaces of parallel, or zero, mean curvature. Bilagrangian structures are defined and used in ways analogous to the use of complex structures in the Riemannian ...
Gary Jensen, Marco Rigoli
doaj  

Surfaces with $1$-type Gauss map [PDF]

open access: yesKodai Mathematical Journal, 1996
The author proves the following theorem. Let \(M\) be an orientable connected surface of Euclidean 3-space \(E^3\). Then \(M\) has 1-type Gauss map if and only if \(M\) is an open part of a sphere or an open part of a circular cylinder. Reviewer's remark: Compact submanifolds of Euclidean spaces with 1-type Gauss map were completely classified in ...
openaire   +3 more sources

The Gauss map in spaces of constant curvature [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
Let N N be a complete simply connected Riemannian manifold of constant sectional curvature
openaire   +2 more sources

Gauss map of minimal surfaces with ramification [PDF]

open access: yesTransactions of the American Mathematical Society, 1993
We prove that for any complete minimal surface M M immersed in R n {R^n} , if in C P n − 1 C{P^{n - 1}} there are q > n
openaire   +1 more source

On the Gauss Map of Surfaces of Revolution with Nonlightlike Axis in Minkowski 3-Space

open access: yesAbstract and Applied Analysis, 2014
We study surfaces of revolution with a nonlightlike axis in 3-dimensional Minkowski space and classify such surfaces in terms of the Gauss map G that satisfies the condition ΔhG=ΛG, with Λ being a 3×3 real matrix.
Minghao Jin, Donghe Pei
doaj   +1 more source

Southeast Asia 1:250,000 [cartographic material] /

open access: yes, 1954
Various eds. "Constructed and molded in ... from ... 1:250,000, Series 1501 ..."; Also shows aeronautical information.; Includes index to adjoining sheets and glossary.; Raised relief model map series of Southeast Asia (Thailand and Indochina) showing ...
United States. Army Map Service.
core  

Convex Combinations of Minimal Graphs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2012
Given a collection of minimal graphs, 𝑀1,𝑀2,…,𝑀𝑛, with isothermal parametrizations in terms of the Gauss map and height differential, we give sufficient conditions on 𝑀1,𝑀2,…,𝑀𝑛 so that a convex combination of them will be a minimal graph.
Michael Dorff   +2 more
doaj   +1 more source

Quantum groups, Yang–Baxter maps and quasi-determinants

open access: yesNuclear Physics B, 2018
For any quasi-triangular Hopf algebra, there exists the universal R-matrix, which satisfies the Yang–Baxter equation. It is known that the adjoint action of the universal R-matrix on the elements of the tensor square of the algebra constitutes a quantum ...
Zengo Tsuboi
doaj   +1 more source

Natural hazards map of the Circum-Pacific Region [cartographic material] : Pacific Basin sheet /

open access: yes, 1992
Map modified 1992.; Depths shown by isolines.; "This map is a contribution to the International Decade for Natural Disaster Reduction (IDNDR)."; Accompanied by: Explanatory notes for the Natural hazards map of the Circum-Pacific region Pacific Basin ...
Circum-Pacific Map Project.
core  

Prospect Green Map: a community map of environmental, historical, cultural, civic, and recreational sites

open access: yes
A map detailing the sites of interest and importance in the Prospect, NC, and the Robeson County area of North Carolina.
Robeson County Green Map Project
core   +1 more source

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