Direct Decomposition about Direct Sum Decomposition of Space

Abstract

Space direct sum decomposition of the algebra plays an important role, This article will explore it from several aspects as follow. The approach to space direct sum decomposition, The application of dimension formulas in space direct sum decomposition, The utilization of linear hull (generated subspace) in space direct sum decomposition, Using the linear transformation of digitalization on finite-dimensional vector space to decoupage V into the direct sum of characteristic subspaces.