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ListarAlgebra por materia "Monoid"

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      Presentations for the monoids of singular braids on closed surfaces 

      González-Meneses López, Juan (Taylor & Francis, 2002)
      We give presentations, in terms of generators and relations, for the monoids SBn(M) of singular braids on closed surfaces. ...
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      Unital associahedra 

      Muro Jiménez, Fernando; Tonks, Andrew (De Gruyter, 2014-03)
      We construct a topological cellular operad such that the algebras over its cellular chains are the homotopy unital A∞-algebras of Fukaya-Oh-Ohta-Ono.