2 papers
math.GT2008
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…
math-ph2005
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…