Bilkent University Topology Seminars

Group extensions in terms of cohomology
Melih Üçer
Bilkent University, Turkey
Özet : We will discuss the group extensions and their classification. Precisely, we will prove a theorem according to which the extensions of a group H by a group K are classified in terms of the 2nd and 3rd cohomology groups of K with coefficients in the center of H. Finally, we will mention another similar theorem and discuss examples in which one classifies a certain object of interest by using these theorems.
  Tarih : 10.12.2018
  Saat : 13:40
  Yer : Mathematics Seminar Room, SA - 141.
  Dil : English
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