Quasi-exact Sequences of S-Acts
Sign Up to like & getrecommendations! Published in 2018 at "Bulletin of the Malaysian Mathematical Sciences Society"
DOI: 10.1007/s40840-017-0596-3
Abstract: In this paper, the notion of (short) quasi-exact sequence of S-acts is introduced. We study the behaviour of quasi-exact sequences in regard to some algebraic properties of S-acts including principal weak injectivity, principal weak flatness,… read more here.
Keywords: exact sequences; quasi exact; sequences acts;
Normality and short exact sequences of Hopf-Galois structures
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DOI: 10.1080/00927872.2018.1529237
Abstract: Abstract Every Hopf-Galois structure on a finite Galois extension K/k where corresponds uniquely to a regular subgroup , normalized by , in accordance with a theorem of Greither and Pareigis. The resulting Hopf algebra which… read more here.
Keywords: short exact; galois structure; hopf galois; exact sequences ... See more keywords
Dehn twist exact sequences through Lagrangian cobordism
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DOI: 10.1112/s0010437x18007479
Abstract: This paper introduces a new Lagrangian surgery construction that generalizes Lalonde–Sikorav and Polterovich’s well-known construction, and combines this with Biran and Cornea’s Lagrangian cobordism formalism. With these techniques, we build a framework which both recovers… read more here.
Keywords: lagrangian cobordism; twist exact; exact sequences; sequences lagrangian ... See more keywords