On the classification of Moore algebras and their deformations

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In this paper we will study deformations of A∞-algebras. We will also answer questions relating to Moore algebras which are one of the simplest nontrivial examples of an A∞-algebra. We will compute the truncated Hochschild cohomology of odd Moore algebras and classify them up to a unital weak equivalence. We will construct miniversal deformations of particular Moore algebras and relate them to the universal odd and even Moore algebras. Finally we will conclude with an investigation of formal one-parameter deformations of an A∞-algebra.

Original languageEnglish
Pages (from-to)87-107
Number of pages21
JournalHomology, Homotopy and Applications
Issue number1
StatePublished - 2004


  • A∞-algebra
  • Deformation
  • Hochschild cohomology
  • Moore algebra
  • Power series


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