Global solvability and simultaneously approximable vectors
[摘要] We consider a class of sum of square, operator on a torus and we prove that global solvability is equivalent to an algebraic condition involving simultaneously approximable vectors. (C) 2002 Elsevier Science (USA).
[发布日期] 2002-09-01 [发布机构]
[效力级别] [学科分类]
[关键词] global solvability;Fourier transform;simultaneous approximability [时效性]
