The Spectrum of the Singularity Category of a Category Algebra

  • Ren WangEmail author


Let \({\mathscr {C}}\) be a finite projective EI category and k be a field. The singularity category of the category algebra \(k{\mathscr {C}}\) is a tensor triangulated category. We compute its spectrum in the sense of Balmer.


Finite EI category Category algebra Tensor triangulated category Triangular spectrum 

Mathematics Subject Classification

Primary 18D10 18E30 Secondary 16D90 16G10 


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The author is grateful to her supervisor Professor Xiao-Wu Chen for his encouragements and discussions. This work is supported by the Project funded by China Postdoctoral Science Foundation (2018M640584), the National Natural Science Foundation of China (Nos. 11522113, 11571329, 11671174 and 11671245), and the Fundamental Research Funds for the Central Universities.


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© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.School of Mathematical SciencesUniversity of Science and Technology of ChinaHefeiPeople’s Republic of China

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