关于遗传代数上的例外序列自同态代数的Hochschild上同调与同调
관우유전대수상적예외서렬자동태대수적Hochschild상동조여동조
On the Hochschild Cohomology and Homology of Endomorphism Algebras of Exceptional Sequences over Hereditary Algebras
  • 万方数据
    数学研究与评论 수학연구여평론
    JOURNAL OF MATHEMATICAL RESEARCH AND EXPOSITION
    2008年 1期 49-56 ,共8页

    姚海楼%平艳茹

    요해루%평염여



    Hochschild cohomology groups%exceptional sequences,endomorphism algebras%global dimensions


    In this paper,let A be a finite dimensional associative algebra over an algebraically closed field k,modA be the category of finite dimensional left A-module and X1,X2,...,Xn,in modA be a complete exceptional sequence,and let E be the endomorphism algebra of X1,X2,...,Xn.We study the global dimension of E,and calculate the Hochschild cohomology and homology groups of E.
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