Hochschild cohomology of reduced incidence algebras

Müge Kanuni*, Atabey Kaygun, Serkan Sütlü

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We compute the continuous Hochschild cohomology of four reduced incidence algebras: The algebra of formal power series, the algebra of exponential power series, the algebra of Eulerian power series, and the algebra of formal Dirichlet series. We achieve the result by carrying out the computation for the coalgebra Cotor-groups of their pre-dual coalgebras.

Original languageEnglish
Article number1750168
JournalJournal of Algebra and its Applications
Issue number9
Publication statusPublished - 1 Sept 2017

Bibliographical note

Publisher Copyright:
© 2017 World Scientific Publishing Company.


  • Hochschild cohomology
  • incidence algebra


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