The symplectic Gram-Schmidt theorem and fundamental geometries for A-modules |
| |
Authors: | Patrice P Ntumba |
| |
Institution: | 1. Pretoria, Republic of South Africa 2. Department of Mathematics and Applied Mathematics, University of Pretoria, Hatfield, 0002, Republic of South Africa
|
| |
Abstract: | Like the classical Gram-Schmidt theorem for symplectic vector spaces, the sheaf-theoretic version (in which the coefficient
algebra sheaf A is appropriately chosen) shows that symplectic A-morphisms on free A-modules of finite rank, defined on a topological space X, induce canonical bases (Theorem 1.1), called symplectic bases. Moreover (Theorem 2.1), if (ℰ, φ) is an A-module (with respect to a ℂ-algebra sheaf A without zero divisors) equipped with an orthosymmetric A-morphism, we show, like in the classical situation, that “componentwise” φ is either symmetric (the (local) geometry is orthogonal) or skew-symmetric (the (local) geometry is symplectic). Theorem 2.1 reduces to the classical
case for any free A-module of finite rank. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|