Research Interests: Computer Algebra,
Differential and Difference
Algebras |
Education:
- 02/92-04/96: Ph.D., RISC-Linz, University of
Linz, Austria
(dissertation.ps)
- 09/85-07/88: M. Sc., Mathematics,
Institute of Systems Science, Academia Sinica, China
- 09/80-07/85: B. Sc., Applied Mathematics,
Tsinghua
University, Beijing, China
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Positions:
- 04/05-present: Professor,
AMSS,
Academia Sinica, Beijing, China
- 12/99-03/05: Associate Professor,
AMSS,
Academia Sinica, Beijing, China
- 11/01-02/04: Research Associate, SCG, School of Computer Science, Univ. of Waterloo,
Canada
- 09/97-12/99: Post-Doctoral Fellow,
Institut SCAI , GMD, St. Augustin, Germany
- 06/96-08/97: Associate Professor, Institute
of Systems Science, Academia Sinica, Beijing, China
- 09/88-01/92: Assistant Professor,
Department
of Applied Mathematics, Tsinghua University, Beijing, China
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Selected Publications:
- Computing logarithmic parts by evaluation homomorphisms
(with H. Du, Y. Gao and J. Guo). In Proceedings of the 2023 International Symposium on Symbolic and Algebraic Computation, pages 242-250, ACM Press, 2023.
- An Additive decomposition in logarithmic towers and beyond
(with H. Du, J. Guo and E. Wong). In Proceedings of the 2020 International Symposium on Symbolic and Algebraic Computation, pages 146-153, ACM Press, 2020.
- Apparent singularities of D-finite systems
(with S. Chen, M. Kauers and Y. Zhang). In Journal of Symbolic Computation, 95:217-237, 2019.
- Additive decompositions in primitive extensions
(with S. Chen and H. Du). In Proceedings of the 2018
International Symposium on Symbolic and Algebraic
Computation, pages 135-142, ACM Press, 2018.
- A q-analogue of the modified Abramov-Petkovsek reduction
(with H. Du and H. Huang). Advances in Computer Algebra, In Honour of Sergei Abramov's 70th Birthday, edited by C.Schneider, E.Zima, Springer Proceedings in Mathematics and Statistics 226, 105¨C129, 2018.
- On the existence of telescopers for mixed hypergeometric terms
(with S. Chen, F. Chyzak, R. Feng and G. Fu). Journal of Symbolic Computation, 68: 1-26,
2015.
- A modified Abramov-Petkovsek reduction and creative telescoping for hypergeometric terms
(with S. Chen, H. Huang, and M. Kauers). In Proceedings of the 2015
International Symposium on Symbolic and Algebraic
Computation, pages 117-124, ACM Press, 2015.
- Parallel telescoping and parameterized Picard-Vessiot theory
(with S. Chen, R. Feng, and M.F. Singer). In Proceedings of the 2014
International Symposium on Symbolic and Algebraic
Computation, pages 99-106, ACM Press, 2014.
- Hermite reduction and creative telescoping for hyperexponential functions
(with A. Bostan, S. Chen, F. Chyzak, and G. Xin). In Proceedings of the 2013
International Symposium on Symbolic and Algebraic
Computation, pages 77-84, ACM Press, 2013.
- Transforming linear functional systems into fully integrable systems
(with M. Wu). Journal of Symbolic Computation, 47: 711-732,
2012.
- Fast computation of common left multiples of linear ordinary differential operators
(with A. Bostan, F. Chyzak, and B. Salvy). In Proceedings of the 2012
International Symposium on Symbolic and Algebraic
Computation, pages 99-106, ACM Press, 2012.
- On the structure of compatible rational functions
(with S. Chen, G. Fu and R. Feng). In Proceedings of the 2011
International Symposium on Symbolic and Algebraic
Computation, pages 91-98, ACM Press, 2011.
- Some remarks on Kahler differentials and ordinary differentials in nonlinear control theory
(with G. Fu, M. Halas, and U. Kotta). In System and Control Letters, vol. 60, pages 699-703, 2011.
- Complexity of creative telescoping for bivariate rational functions
(with A. Bostan, S. Chen and F. Chyzak). In Proceedings of the 2010
International Symposium on Symbolic and Algebraic
Computation, pages 203-210, ACM Press, 2010.
- Submersive rational difference systems and their accessibility
(with M.Halas, U. Kotta, H. Wang and C. Yuan). In Proceedings of the 2009
International Symposium on Symbolic and Algebraic
Computation, pages 175-182, ACM Press, 2009.
- Testing linear dependence of hyperexponential elements (with M. Wu and D. Zheng). ACM Communications in Computer Algebra, 41(1),
3-11, 2007.
- A recursive method for determining the one-dimensional submodules of Laurent-Ore modules
(with M.F. Singer, M. Wu and D. Zheng). In Proceedings of the 2006
International Symposium on Symbolic and Algebraic
Computation, pages 220-227, ACM Press, 2006.
- Univariate
Ore polynomial rings in computer algebra (with S. Abramov
and H. Le). Journal of Mathematical Sciences, 131(5),
5885-5903, 2005.
- Picard-Vessiot extensions
for linear functional systems (with M. Bronstein and M. Wu). In Proceedings of the 2005
International Symposium on Symbolic and Algebraic
Computation, pages 68-75, ACM Press, 2005.
- Differential rational normal forms and a reduction algorithm
for hyperexponential functions (with K. Geddes and H. Le). In Proceedings of the
2004
International Symposium on Symbolic and Algebraic
Computation, pages 183-190, ACM Press, 2004
- Hyperexponential solutions of finite-rank ideals in orthogonal
Ore rings
(with G. Labahn). In Proceedings of the 2004
International Symposium on Symbolic and Algebraic
Computation, pages 213-220, ACM Press, 2004
- Factoring systems of linear PDEs with finite-dimensional solution spaces
(with F. Schwarz and S. Tsarev). Journal of Symbolic
Computation. 36(3-4), pages 443-471, 2003.
- Factoring zero-dimensional ideals of linear partial differential operators
(with F. Schwarz and S. Tsarev). In Proceedings of the 2002
International Symposium on Symbolic and Algebraic
Computation, pages 168-175, ACM Press, 2002
- Rational solutions of
Riccati-like partial differential equations
(with F. Schwarz). Journal of Symbolic Computation, 31(6): 691-716,
2001.
- A subresultant theory for Ore polynomials with applications. In Proceedings of the
1998 International Symposium on Symbolic and Algebraic
Computation, pages 132-139, ACM Press, 1998.
- A modular algorithm for computing greatest common right
divisors of Ore polynomials (with I. Nemes). In Proceedings of the
1997
International Symposium on Symbolic and Algebraic
Computation, pages 282-289, ACM Press, 1997.
- Finding roots of unity
among quotients of the roots of an integral polynomial (with
K. Yokoyama and I. Nemes). In Proceedings of the 1995
International Symposium on Symbolic and Algebraic
Computation, pages 85-89, ACM Press, 1995.
- Mechanical
theorem proving of the local theory of surfaces. Annals of
Artificial Intelligence, 13, 25-46, 1995.
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Teaching:
- Linear Algebra (Autumn 2014-Spring 2015)
- Linear Algebra (Autumn 2015-Spring 2016)
- Linear Algebra (Autumn 2016-Spring 2017)
- Linear Algebra (Autumn 2017-Spring 2018)
- Linear Algebra (Autumn 2018-Spring 2019)
- Linear Algebra (Autumn 2019-Spring 2020)
- Linear Algebra (Autumn 2020-Spring 2021)
- Linear Algebra (Autumn 2021-Spring 2022)
- Linear Algebra (Autumn 2022-Spring 2023)
- Linear Algebra (Autumn 2023-Spring 2024)
- Linear Algebra (Autumn 2024-Spring 2025)
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