Zobrazeno 1 - 10 of 13 pro vyhledávání: '"Ji-Ping Sha"'
2
A tessellation for Fermat surfaces in CP3
Autor: Andrew J. Hanson, Ji-Ping Sha
Publikováno v: Journal of Symbolic Computation. 44:591-605
For each positive integer n, we present a tessellation of CP^2 that can be lifted, through the branched covering, to a symmetric tessellation of the Fermat surface (a 4-manifold) of degree n in CP^3. The process is systematic and symbolically algebra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4f394a055314c0a66b8f7660b5bf5911
https://doi.org/10.1016/j.jsc.2008.09.002
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3
A contour integral representation for the dual five-point function and a symmetry of the genus-4 surface in
Autor: Ji-Ping Sha, Andrew J. Hanson
Publikováno v: Journal of Physics A: Mathematical and General. 39:2509-2537
The invention of the "dual resonance model" N-point functions BN motivated the development of current string theory. The simplest of these models, the four-point function B4, is the classical Euler Beta function. Many standard methods of complex anal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ca494821a80a62de55b81d3aa73bb52
https://doi.org/10.1088/0305-4470/39/10/017
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5
No skew branes on non-degenerate hyperquadrics
Autor: Ji-Ping Sha, Bruce Solomon
We show that non-degenerate hyperquadrics in R^{n+2} admit no skew branes. Stated more traditionally, a compact codimension-one immersed submanifold of a non-degenerate hyperquadric of euclidean space must have parallel tangent spaces at two distinct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50c116b8f9c2078fd621dd4b43cb5a92
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6
A secondary Chern-Euler class
Autor: Ji-Ping Sha
Let xi be a smooth oriented vector bundle, with n-dimensional fibre, over a smooth manifold M. Denote by xi-hat the fibrewise one-point compactification of xi. The main purpose of this paper is to define geometrically a canonical element Upsilon(xi)
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9
Akademický článek
No skew branes on non-degenerate hyperquadrics.
Autor: Ji-Ping Sha, Bruce Solomon
Publikováno v: Mathematische Zeitschrift; Sep2007, Vol. 257 Issue 1, p225-229, 5p
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