English

On the Surjectivity of Certain Maps II: For Generalized Projective Spaces

Commutative Algebra 2021-03-30 v2 Algebraic Geometry

Abstract

In this article we introduce generalized projective spaces (Definitions [2.1,2.5][2.1, 2.5]) and prove three main theorems in two different contexts. In the first context we prove, in main Theorem AA, the surjectivity of the Chinese remainder reduction map associated to the generalized projective space of an ideal with a given factorization into mutually co-maximal ideals each of which is contained in finitely many maximal ideals, using the key concept of choice multiplier hypothesis (Definition 4.114.11) which is satisfied. In the second context of surjectivity of the map from kk-dimensional special linear group to the product of generalized projective spaces of kk-mutually co-maximal ideals associating the kk-rows or kk-columns, we prove remaining two main Theorems [Ω,Σ][\Omega,\Sigma] under certain conditions either on the ring or on the generalized projective spaces. Finally in the last section we pose open Questions [9.1,9.2][9.1, 9.2] whose answers in a greater generality is not known.

Keywords

Cite

@article{arxiv.1810.03474,
  title  = {On the Surjectivity of Certain Maps II: For Generalized Projective Spaces},
  author = {C. P. Anil Kumar},
  journal= {arXiv preprint arXiv:1810.03474},
  year   = {2021}
}

Comments

20 pages sequel to the article arXiv:1608.03728 . The Journal of the Ramanujan Mathematical Society, Accepted April, 2020