18 citations · 21 across the 4 of their papers we have counts for
4 papers
A tessellation for algebraic surfaces in CP3
Andrew J. Hanson, Ji-Ping Sha
We present an explicit algorithm for tessellating the algebraic surfaces (real 4-manifolds) F(n) embedded in CP3 defined by the equation z0^n + z1^n + z2^n + z3^n = 0 in the standa…
A Contour Integral Representation for the Dual Five-Point Function and a Symmetry of the Genus Four Surface in R6
Andrew J. Hanson, Ji-Ping Sha
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 th…
No skew branes on non-degenerate hyperquadrics
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 hyperquadri…
A secondary Chern-Euler class
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…