English

Topological classification of systems of bilinear and sesquilinear forms

Representation Theory 2016-12-06 v1 Rings and Algebras

Abstract

Let A\cal A and B\cal B be two systems consisting of the same vector spaces Cn1,,Cnt\mathbb C^{n_1},\dots,\mathbb C^{n_t} and bilinear or sesquilinear forms Ai,Bi:Cnk(i)×Cnl(i)CA_i,B_i:\mathbb C^{n_{k(i)}}\times\mathbb C^{n_{l(i)}}\to\mathbb C, for i=1,,si=1,\dots,s. We prove that A\cal A is transformed to B\cal B by homeomorphisms within Cn1,,Cnt\mathbb C^{n_1},\dots,\mathbb C^{n_t} if and only if A\cal A is transformed to B\cal B by linear bijections within Cn1,,Cnt\mathbb C^{n_1},\dots,\mathbb C^{n_t}.

Keywords

Cite

@article{arxiv.1611.08716,
  title  = {Topological classification of systems of bilinear and sesquilinear forms},
  author = {Carlos M. da Fonseca and Vyacheslav Futorny and Tetiana Rybalkina and Vladimir V. Sergeichuk},
  journal= {arXiv preprint arXiv:1611.08716},
  year   = {2016}
}

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5 pages