Lie Semigroups, Homotopy, and Global Extensions of Local Homomorphisms

KIZIL E., Lawson J.

JOURNAL OF LIE THEORY, cilt.25, sa.3, ss.753-774, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 3
  • Basım Tarihi: 2015
  • Dergi Adı: JOURNAL OF LIE THEORY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.753-774
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

For a finite dimensional connected Lie group G with Lie algebra g, we consider a Lie-generating Lie wedge W subset of g. If S is a Lie subsemigroup of G with subtangent wedge W we give sufficient conditions for S to be free on small enough local semigroups U boolean AND S in the sense that continuous local homomorphisms extend to global ones on S. The constructions involve developing a homotopy theory of U boolean AND S-directed paths. We also consider settings where the free construction leads to a simply connected covering of S.