Jie Sun | sjie@mtu.edu |

Academic Background

- I am currently a tenure-track assistant professor (Aug. 2016 - present) at the Michigan Technological University.
- I was a visiting assistant professor (Jan. 2013 - May 2016)
at the Michigan
Technological University.

- I was a postdoctoral scholar (2010-2012) at the University of California, Berkeley working with Professor Vera Serganova.
- I was a postdoctoral scholar (2009-2010) at the University of Ottawa working with Professor Erhard Neher.
- I did my Ph.D. in mathematics under the supervision of Professor Arturo Pianzola at the University of Alberta. My Ph.D. thesis was titled "Descent Constructions for Central Extensions of Infinite Dimensional Lie Algebras".
- I did my M.Sc. in mathematics under the supervision of Professor Changchang Xi at Beijing Normal University. I was nurtured by the representation theory research group at BNU including Professors Yingbo Zhang and Bangming Deng.
- During my undergraduate studies I took the course on abstract algebra (taught by Professor Guoxing Ji in 1999) through which I developed an appreciation of the structures in mathematics.
- I am grateful to my high school math teacher Mosen Wang who showed me the beauty of mathematics and taught me to enjoy math as an art.

- Lie Theory, Algebraic Geometry, Representation Theory.

- J. Sun, Quasisymmetric functions and Heisenberg doubles, Journal of Algebra, Combinatorics, Discrete Structures, and Applications, 3(3) (2016), 195-200.
- H. Chen and J. Sun, Universal central extensions of sl_{m|n} over Z/2Z-graded algebras, Journal of Pure and Applied Algebra, 219 (9) (2015), 4278-4294. (arXiv:1311.7079)
- E. Neher and J. Sun, Universal central extensions of direct limits of Lie superalgebras, Journal of Algebra, 368 (2012), 169-181. (arXiv:1104.1001)
- J. Sun, Cyclotomic Temperley-Lieb algebra of type D and its representation theory, Communications in Algebra, 38 (2010), 94-118. (arXiv:1011.4089)
- J. Sun, Universal central extensions of twisted forms of split simple Lie algebras over rings, Journal of Algebra, 322 (2009), 1819-1829. (arXiv:1011.4086)
- A. Pianzola, D. Prelat and J. Sun, Descent constructions for central extensions of infinite dimensional Lie algebras, Manuscripta Mathematica, 122 (2) (2007), 137-148. (arXiv:0711.3799)

- J. Sun, Universal central extensions of twisted current algebras.
- I. Penkov, V. Serganova and J. Sun, Representation theory of locally finite Lie algebras.
- L. Martirosyan and J. Sun, Extensions and block decompositions for finite-dimensional representations of equivariant map superalgebras.
- H. Chen and J. Sun, Verma modules of twisted affine Lie superalgebras of type Q.

- Infinite dimensional Lie algebras, Departmental Colloquium, Michigan Technological University, February 2016.
- Symmetric functions and quasisymmetric functions, Algebraic Combinatorics and Applications, First Annual Kliakhandler Conference, Michigan Technological University, August 2015.
- Universal central extensions of twisted current algebras, University of Ottawa and Carleton University, May 2015.
- Universal central extensions of sl_{m|n} over Z/2Z-graded algebras, Combinatorics Seminar, Michigan Technological University, October 2014.
- Universal central extensions of sl_{m|n} over Z/2Z-graded algebras, Special Session on Lie Algebras and Representation Theory, AMS Sectional Meeting, Eau Claire, September 2014.
- Central extensions of Lie algebras, Combinatorics Seminar, Michigan Technological University, February 2014.
- Universal central extensions of direct limits of Lie superalgebras, Representation Theory, Geometry and Combinatorics Joint Seminar, University of California, Berkeley, January 2011.
- Universal central extensions of twisted forms, University of Esfahan, August 2010.
- Direct limits of Lie algebras and their universal central extensions, Lie Theory Workshop, University of Ottawa, July 2010.
- Universal central extensions of direct limits of Lie algebras, Ottawa Mathematics Conference, University of Ottawa, June 2010.
- Universal central extensions of twisted forms, Fields Institute Workshop on Torsors, Lie Algebras and Galois Cohomology, University of Ottawa, March 2010.
- Universal central extensionsl of infinite dimensional Lie algebras, Canadian Mathematical Society Winter Meeting, Windsor, December 2009.
- Universal central extensions of infinite dimensional Lie algebras, Lie Theory Seminar, University of Ottawa, November 2009.
- Universal central extensions of twisted forms, Algebraic Geometric Seminar, Queen's University, September 2009.
- Universal central extensions of twisted multiloop Lie tori, Canadian Young Researchers Conference in Mathematics, University of Calgary, July 2009.
- Infinite dimensional Lie theory and descent theory, Second Canada-France Congress, Université du Québec à Montréal, June 2008.
- Faithfully flat descent constructions for central extensions, Canadian Young Researchers Conference in Mathematics, University of Alberta, May 2008.
- Cyclotomic
Temperley-Lieb
algebra of type D and its representation theory, Special Program
on Representation Theory, MSRI at Berkeley, January 2008.

- Infinite dimensional Lie algebras given by faithfully flat descent, Canada Pure Math Graduate Student Conference, Simon Fraser University, October 2007.
- Descent constructions in infinite dimensional Lie theory, Bonn Köln Algebra Seminar, University of Köln, Germany, July 2007.
- Descent constructions for central extensions of infinite dimensional Lie algebras, Canadian Mathematical Society-MITACS Joint Conference, University of Manitoba, June 2007.
- Lifting automorphisms and descent constructions, Special Program on Algebraic Geometry, Institute for Advanced Study at Princeton, May 2007.
- Multiloop realizations of extended affine Lie algebras and twisted forms, Canadian Conference for Young Researchers in Mathematics, University of Calgary, May 2007.
- Central extensions of infinite dimensional Lie algebras, Graduate Colloquium, University of Alberta, February 2007.
- Group schemes and descent theory, Algebra Seminar on Groups Schemes, University of Alberta, 2005-2006.
- Lie
algebra cohomology and
central extensions, Homological Algebra Seminar, University of
Alberta, March 2005.

Ph.D. students

- Jezerca Hodaj, Michigan Technological University, Fall 2013-Spring 2014.

- Floyd Johnson, Michigan Technological University, Summer 2016.
- Co-supervised NSERC summer students doing research projects on representation theory of finite groups, University of Ottawa, 2010.
- Co-supervised undergraduate students enrolled in MAT 4142 Introduction to Lie Algebras doing research projects on representation theory of Lie algebras, University of Ottawa, 2009.
- Supervised undergraduate students enrolled in MATH 324 Number Theory doing research projects on applications of number theory and cryptography, Univeristy of Alberta, 2009.

- Modeling Competition in Mathematics is an annual national competition for undergraduate students in mathematics organized by China Industry and Applied Mathematics Society. Three students form a team and design a mathematical model within three days to solve an assigned research project and submit a scientific paper to be evaluated. I attended the competition in 1999 and 2000. It was a wonderful experience.
- The classification model for DNA sequences (with L. Yuan and H. Zhang), China National Modeling Competition in Mathematics, Xian, 2000. This paper received the third prize in this competition.
- The optimum checking and replacing model for automatics lathe (with Z. Hu and L. Yuan), China National Modeling Competition in Mathematics, Xian, 1999. This paper received the first prize in this competition.