{ "id": "1902.09311", "version": "v1", "published": "2019-02-18T07:24:53.000Z", "updated": "2019-02-18T07:24:53.000Z", "title": "On the Surjectivity of Certain Maps III: For Symplectic Groups Over Rings and Generalized Projective Spaces", "authors": [ "C. P. Anil Kumar" ], "comment": "36 pages", "categories": [ "math.NT", "math.AC", "math.AG" ], "abstract": "We prove three main theorems on the surjectivity of certain maps for symplectic groups over commutative rings with unity in two different contexts. In the first context, we prove in Theorem $\\Lambda$, the surjectivity of the reduction map of strong approximation type for a ring quotiented by an ideal which satisfies unital set condition in the case of symplectic groups. In the second context of the surjectivity of the map from $(2k\\times 2k)$-order symplectic group over a ring to the product of generalized projective spaces of $2k$-mutually co-maximal ideals associating the $2k$-rows or $2k$-columns, we prove the remaining two main Theorems $[\\Omega,\\Sigma]$, under certain conditions, either on the ring or on the generalized projective spaces. Finally in the second context, we give counter examples where, the surjectivity fails for $(p,q)$-indefinite orthogonal groups over integers.", "revisions": [ { "version": "v1", "updated": "2019-02-18T07:24:53.000Z" } ], "analyses": { "subjects": [ "13A15", "51N30", "11D79", "11B25", "16U60" ], "keywords": [ "generalized projective spaces", "surjectivity", "main theorems", "second context", "satisfies unital set condition" ], "note": { "typesetting": "TeX", "pages": 36, "language": "en", "license": "arXiv", "status": "editable" } } }