A. Refereed journal publications:
[1] Proof of a conjecture about the exponent of primitive matrices, Linear Algebra and its Applications, 216:185-203, 1995.
[2] (With Qiao Li) Two theorems on double loop network, Journal of China University of Science and Technology, 25(2):127-132, 1995.
[3] Some estimated formulas on the Frobenius numbers, Linear Algebra and its Applications, 244:13-20, 1996.
[4] A bound on the exponent of primitivity in terms of diameter, Linear Algebra and its Applications, 244:21-34, 1996.
[5] A problem on the exponent of primitive matrices, Linear Algebra and its Applications, 244:255-264, 1996.
[6] An improvement of the Dulmage-Mendelsohn theorem, Discrete Mathematics, 158(1-3):295-297, 1996.
[7] A short proof of a theorem on primitive matrices, Congressus Numerantium, 121:204-210, 1996.
[8] (With D. A. Gregory) Some eigenvalue inequalities for matrices with restricted entrices, Linear and Multilinear Algebra, 41(2):107-112, 1996.
[9] Directed triangles in digraphs, Journal of Combinatorial Theory, Series B, 74:405-407, 1998.
[10] (With J. Xu and Z. Li) Some results on arithmetic and balanced graphs, Journal of China University of Science and Technology, 28(2):183-193, 1998.
[11] (With S. Neufeld) Some results on generalized exponents, Journal of Graph Theory, 28(4):215-225, 1998.
[12] (With S. Neufeld) On a problem of Lewin, Linear Algebra and its Applications, 274:411-426, 1998.
[13] (With S. Neufeld) Local exponents of primitive digraphs, Linear Algebra and its Applications, 268:117-129, 1998.
[14] (with D. A. Gregory and S. Neufeld) Exponents of indecomposability, Linear Algebra and its Applications, 288:229-241, 1999.
[15] (with R. A. Brualdi) Discrepancy of matrices of zeros and ones, Electronic Journal of Combinatorics, 6(1), Research Paper 15, 12 pages, 1999.
[16] On the girth of digraphs, Discrete Mathematics, 211(1-3):167-181, 2000.
[17] (With D. Gregory) Exponents of vertex-transitive digraphs, Discrete Mathematics, 212(3):245-255, 2000.
[18] Exponents of 2-regular digraphs, Discrete Mathematics, 214(1-3):211-219, 2000.
[19] (With B. Liu, B. Zhou and Q. Li) Generalized index of Boolean matrices, Ars Combinatoria, 57:247-255, 2000.
[20] (With D. Gregory) Two conjectures on the index of convergence of an irreducible Boolean matrix, Congressus Numerantium, 146:43-50, 2000.
[21] (With R. Brualdi) Diameter of NEPS of bipartite graphs, Discrete Mathematics, 226(1-3):373-376, 2001.
[22] (With D. Gregory) On the girth of digraphs with high connectivity, Ars Combinatoria, 60:201-207, 2001.
[23] (With R. Brualdi) Landau's inequalities for tournament scores and a short proof of a theorem on transitive sub-tournaments, Journal of Graph Theory, 38(4):244-254, 2001.
[24] (With R. Yuster) A note on the number of edges guaranteeing a C_4 in Eulerian bipartite digraphs, Electronic Journal of Combinatorics, 9(1), Note 6, 6 pages, 2002.
[25] (With R. Brualdi) Disjoint cycles in Eulerian digraphs and the diameter of interchange graphs, Journal of Combinatorial Theory, Series B, 85(2):189--196, 2002.
[26] On the Caccetta-Häggkvist conjecture, Graphs and Combinatorics, 18(3):645-654, 2002.
[27] (With B. Zhou) On generalized exponents of tournaments, Taiwanese Journal of Mathematics, 6(4):565-572, 2002.
[28] (With C. J. Wyels) On the number of arcs in primitive digraphs with large exponents, Linear Algebra and its Applications, 364:243-251, 2003.
[29] (With G. Chen and R. Yuster) Second neighborhood via first neighborhood in digraphs, Annals of Combinatorics, 7(1):15-20, 2003.
[30] Short cycles in digraphs with local average outdegree at least two, Electronic Journal of Combinatorics, 10(1) Research Paper 26, 11 pages, 2003.
[31] (With L. Sheng and J. Wu) Searching for sorted sequences of kings in tournaments, SIAM Journal on Computing, 32(5):1201-1209, 2003.
[32] (With X. Chen) On the Frame-Stewart conjecture about the towers of Hanoi, SIAM Journal on Computing, 33(3):584-589, 2004.
B. Book chapter:
[33] (With X. Chen) Maximum necessary hop count for packet routing in MANET, in: Theoretical and Algorithmic Aspects of Sensor, Ad Hoc Wireless and Peer-to-Peer Networks, CRC Press, 2004.
C. Refereed journal publications, accepted:
[34] (With J. A. Bondy, S. Thomassé and C. Thomassen) Density conditions implying triangles in k-partite graphs, accepted by Combinatorica
D. Publications submitted to refereed journals:
[35] (With W. Gu and X. Jia) Independent perfect domination sets in meshes, tori and trees, submitted to Discrete Mathematics.
[36] (With L. You and B. Liu) r-indecomposable and r-nearly decomposable matrices, submitted to Linear Algebra and its Applications.
[37] On two Turan number, submitted to Journal of Graph Theory.
E. Refereed publications in Computer Science conference proceedings:
[38] (With X. Chen and X. Jia) An upper bound for a mobile Ad-Hoc wireless network, Proceedings of the International Conference on Parallel and Distributed Processing Techniques and Applications, 1617-1620, Las Vegas, June 2001.
[39] (With X. Chen) Secure group key distribution protocols, Proceedings of the ISCA 15th International Conference on Parallel and Distributed Computing Systems (PDCS-2002), 307-311, Louisville, Kentucky, September 2002.
[40] (With X. Chen) A quorum-based fault-tolerant method for distributed mutual exclusion, Proceedings of the 7th Joint Conference on Information Sciences, 568-571, September 2003.