Pin-structures on surfaces and quadratic forms

Degtyarev A., Finashin S.

Turkish Journal of Mathematics, vol.21, no.2, pp.187-193, 1997 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 2
  • Publication Date: 1997
  • Journal Name: Turkish Journal of Mathematics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.187-193
  • Keywords: Pin-structure, Quadratic form, Surface
  • Middle East Technical University Affiliated: Yes


A correspondence between various Pin-type structures on a compact surface and quadratic (linear) forms on its homology is constructed. Sum of structures is defined and expressed in terms of these quadratic forms and in terms of Whitney sum of Spin structures. © TÜBİTAK.