Projects per year
Personal profile
Personal profile
I obtained my Ph.D. in Math from Combinatorics at the University of Illinois at Urbana-Champaign, supervised by Prof. Kostochka. My research interest lies in the field of combinatorics, specifically the coloring of graphs, Ramsey theory, and the secretary-type problems. I am a lecturer at Xian Jiaotong-Liverpool University starting in Oct.2021.My personal webpage is https://sites.google.com/view/xujunliu1993 and my email address is: Xujun.Liu@xjtlu.edu.cn.
Research interests
Graph theory
Combinatorics
Secretary type problems
Experience
Lecturer, Xian Jiaotong-Liverpool University, 2021-present
Postdoctoral Research Associate, Coordinated Science Laboratory (supervised by Prof. Milenkovic), University of Illinois at Urbana-Champaign, 2020 - 2021
Teaching
MTH 019 Calculus for Business
MTH 002 Multivariable Calculus and Statistics
MTH 301 Final Year Project
Calculus for Business
Calculus
Multivariable Calculus and Statistics
Precalculus
Final Year Project
Awards and honours
Waldemar J., Barbara G., and Juliette Alexandra Trjitzinsky Fellowship, UIUC (excellent graduate student research fellowship at UIUC math department, around $12000) May 2019
Journal Award, Department of Mathematics, Miami University Apr 2015
Outstanding Graduate, Shandong Province, China Jun 2013
Meritorious Winner, Mathematical Contest in Modeling Apr 2013
China Undergraduate National Scholarship Nov 2012
Departmental First Prize of Scholarship, Harbin Institute of Technology Apr 2012
Provincial Third Prize, The Chinese Mathematics Competitions Dec 2011
Provincial Second Prize, China Undergraduate Mathematical Contest in Modeling Sep 2011
Education/Academic qualification
Ph.D. in Mathematics, University of Illinois at Urbana-Champaign, 2015-2020
Master of Science in Applied Mathematics, University of Illinois at Urbana-Champaign, 2015-2018
Master of Science in Pure Mathematics, Miami University, Oxford, Ohio, 2013-2015
Bachelor of Science in Information and Computing Science, Harbin Institute of Technology, Weihai, 2009-2013
Person Types
- Staff
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Packing vertex colorings and packing edge colorings of graphs
1/01/25 → 31/12/27
Project: Governmental Research Project
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Optimal stopping methodology for the secretary problem with random queries
Moustakides, G. V., Liu, X. & Milenkovic, O., Jun 2024, In: Journal of Applied Probability. 61, 2, p. 578-602 25 p.Research output: Contribution to journal › Article › peer-review
Open Access -
A Combinatorial Proof for the Dowry Problem
Liu, X., Milenkovic, O. & Moustakides, G. V., 2023, 2023 IEEE Information Theory Workshop, ITW 2023. Institute of Electrical and Electronics Engineers Inc., p. 538-543 6 p. (2023 IEEE Information Theory Workshop, ITW 2023).Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review
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Every subcubic multigraph is (1,27)-packing edge-colorable
Liu, X., Santana, M. & Short, T., Dec 2023, In: Journal of Graph Theory. 104, 4, p. 851-885 35 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Query-Based Selection of Optimal Candidates under the Mallows Model
Liu, X., Milenkovic, O. & Moustakides, G. V., 10 Nov 2023, In: Theoretical Computer Science. 979, 114206.Research output: Contribution to journal › Article › peer-review
Open Access1 Citation (Scopus) -
Balanced and Swap-Robust Trades for Dynamical Distributed Storage
Pan, C., Gabrys, R., Liu, X., Colbourn, C. & Milenkovic, O., 2022, 2022 IEEE International Symposium on Information Theory, ISIT 2022. Institute of Electrical and Electronics Engineers Inc., p. 2385-2390 6 p. (IEEE International Symposium on Information Theory - Proceedings; vol. 2022-June).Research output: Chapter in Book or Report/Conference proceeding › Conference Proceeding › peer-review
2 Citations (Scopus)
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Institute for Basic Science
Xujun Liu (Visiting researcher)
24 Aug 2024 → 6 Sept 2024Activity: Research visit
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Packing colorings of subcubic graphs
Xujun Liu (Speaker)
8 Jul 2024Activity: Talk or presentation › Invited talk
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Packing colorings of subcubic graphs
Xujun Liu (Speaker)
29 Jun 2024Activity: Talk or presentation › Invited talk
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Packing edge colorings of subcubic graphs
Xujun Liu (Speaker)
27 Jun 2024Activity: Talk or presentation › Invited talk
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Sun Yat-sen University
Xujun Liu (Visiting researcher)
24 Jun 2024 → 29 Jun 2024Activity: Research visit