惠昌常，男，首都师范大学特聘教授，博士生导师，长江学者特聘教授，博士毕业于联邦德国Bielefeld大学；曾获教育部科技进步二等奖、德国“年轻杰出学者洪堡奖”；在代数表示论、同调代数、导出范畴、代数K-理论等学科取得了出色的研究成果, 在Adv.Math、J.Rein Ang.Math、Proc.LMS、Tran AMS、Math.Ann、Comm.Math.Phys.、Sci.China Math.等国际数学刊物发表论文90多篇，多次在国际代数学术会议作大会报告、主持和参加国家自然科学基金重点项目；任《Journal of Algebra》、《Archiv der Mathematik》等国际数学杂志编委。

1.C.C.Xi, Frobenius bimodules and flat-dominant dimensions. Sci. China Math. 64, 33-44(2021).
2.C.C.Xi, S.J.Yin, Cellularity of centrosymmetric matrix algebras and Frobenius extensions. Linear Algebra Appl. 590, 317-329(2020)
3.H.X.Chen, C.C.Xi, Exact contexts, noncommutative tensor products and universal localizations. Trans. Amer. Math. Soc. 371 (5), 3647-3672(2019)
4.H.X.Chen, C.C.Xi, Good tilting modules and recollements of derived module categories II. J. Math. Soc. Japan 71 (2), 515-554(2019).
5.W.Hu, C.C.Xi, Derived equivalences and stable equivalences of Morita type, II. Revista Matemática Iberoamericana 34 (1), 59-110(2018).
6.H.X.Chen,C.C.Xi, Recollements of derived categories,III:finitistic dimensions .J. Lond. Math. Soc. 95 (2), 633-658(2017).
7.H.X.Chen, C.C.Xi, Dominant dimensions, derived equivalences and tilting modules. Isr. J. Math. 215, 349-395(2016).
8.S.Koenig,C.C.Xi，Affine cellular algebras. Adv. Math. 229, 139-182(2012).
9.H.X.Chen,C.C.Xi, Good tilting modules and recollements of derived module categories. Proc. Lond. Math. Soc. 104, no. 5, 959-996(2012).
10.W.Hu, C.C.Xi,D-split sequences and derived equivalences. Adv. Math. 227, 292- 318(2011).
11.C.C.Xi, On the finitistic dimension conjecture, II: related to finite global dimension. Adv. Math. 201(1),116-142 (2006)
12.C.C.Xi, On the quasi-heredity of Birman-Wenzl algebras. Adv. Math. 154, no.2, 280-298 (2000).
13.S.Koenig, C.C.Xi, When is a cellular algebra quasi-hereditary? Math.Ann, 315, 281-193(1999).
14.C.C.Xi, Partition algebras are cellular. Compos. Math. 119, 99-109(1999)
15.S.Koenig, C.C.Xi, On the structure of cellular algebras. Canad. Math. Soc. Conf. Proc., Vol.24, 365-385 (1998)
16.C.C.Xi, Quasi-hereditary algebras with a duality. J. Reine Angew. Math. 449, 201-215 (1994)
17.C.C.Xi, Die Vektorraumkategorie zu einem Punkt einer zahmen verkleideten Algebra J. Algebra 145, 279-305 (1992)

2022年春季，高等代数II，本科
2021年秋季，高等代数I，本科
2020年秋季，高等代数I，本科
2020年春季，同调代数，硕士、博研究生
2019年春季，表示论初步，本科、硕士研究生
2018年秋季，同调代数，硕、博研究生方向课
2018年春季，同调代数II，研究生基础课
2018年春季，三角范畴与导出范畴，硕、博研究生方向课
2017年秋季，交换代数，硕士、博研究生
2017年春季，代数表示论引论，硕、博研究生方向课
2016年秋季，代数表示论初步II，本科、硕士研究生

2006年，德国“年轻杰出学者洪堡奖”
2001年，教育部特聘教授
2000年，教育部跨世纪优秀人才培养计划
1998年，教育部科学技术进步奖
1994年，霍英东基金会高校青年教师基金

Dr. Changchang Xi, a full Professor and Ph.D supervisor at the School of Mathematical Sciences, Capital Normal University, Beijing, China, got Ph.D at the University of Bielefeld, Germany, under the supervision of Professor Dr. Claus Michael Ringel. Dr. Xi worked as Post-doctor, Associate Professor and Professor at the University of Bielefeld, and Beijing Normal University for many years. His major interests are representation theory of algebras, homological algebra and related topics. As an editor, he serves the Journal of Algebra, Archiv der Mathematik, and other mathematical journals.