1 citations
4 papers
Galois extensions for coquasi-Hopf algebras
Adriana Balan
The notions of Galois and cleft extensions are generalized for coquasi-Hopf algebras. It is shown that such an extension over a coquasi-Hopf algebra is cleft if and only if it is G…
SecMon: End-to-End Quality and Security Monitoring System
Tomasz Ciszkowski, Charlott Eliasson, Markus Fiedler +3
The Voice over Internet Protocol (VoIP) is becoming a more available and popular way of communicating for Internet users. This also applies to Peer-to-Peer (P2P) systems and mergin…
A Morita context and Galois extensions for Quasi-Hopf algebras
Adriana Balan
If H is a finite dimensional quasi-Hopf algebra and A is a left H-module algebra, we prove that there is a Morita context connecting the smash product A#H and the subalgebra of inv…
Non-zero contact and Sasakian reduction
Oana Drăgulete, Liviu Ornea
We complete the reduction of Sasakian manifolds with the non-zero case by showing that Willett's contact reduced space is compatible with the Sasakian structure. We then prove the…