I am interested in theoretical computer science and combinatorics. My current research interests include approximation algorithms, cryptography, compressed sensing and graph theory.

Properties of the Fibonacci-sum graph, with A. Arman and D.S. Gunderson. Submitted.

Antimagic labelings of power of cycles graphs. Ars Combinatoria 124(2016), 341-351.

Guarding orthogonal terrains, with S. Durocher and S. Mehrabi. In Proceedings of the 27th Canadian Conference on Computational Geometry, 2015.

Cycle-maximal triangle-free graphs, with S. Durocher, D.S. Gunderson, M. Skala. Discrete Mathematics 338(2015), 274-290.

A sharp lower bound on the number of hyperedges in a friendship 3-hypergraph, with G.H.J. van Rees. Australian Journal of Combinatorics 57(2013),73-78.

Friendship 3-hypergraphs, with G.H.J. van Rees, S. H. Seo, and N.M. Singhi. Discrete Mathematics 312 (2012), 1892-1899.

Sperner partition systems, with Karen Meagher. Accepted to appear in Journal of Combinatorial Designs (Accepted on July 19, 2012 and published online August 16, 2012).

Combination labelings of graphs. Applied Mathematics E-Notes, 12(2012), 158-168.

Cool-lex Order and k-ary Catalan Structures with Stephane Durocher, Debajyoti Mondal, Frank Ruskey, and Aaron Williams. Journal of Discrete Algorithms, special issue of invited papers selected from the Twenty-Second International Workshop on Combinatorial Algorithms (IWOCA 2011). 16(2012), 287-307.

A note on the Pancylism of block intersection graphs of universal-friend friendship hypergraphs. Journal of Combinatorial Mathematics and Combinatorial Computing, 83(2010) 65-75.

Ranking and Loopless Generation of k-ary Dyck Words in Cool-lex Order, with S. Durocher, D. Mondal, and A. Williams. In proceedings of the Twenty-Second International Workshop on Combinatorial Algorithms (IWOCA 2011). Springer Lecture Notes in Computer Science, 7056(2011), 182-194. 2011.

Savate-Beam Triple Systems for v=5 and v=6, with D.W. Hein. Journal of Combinatorial Mathematics and Combinatorial Computing, 57(2011), 161-168.

The Stein-Lovasz Theorem and its Application to Some Combinatorial Arrays, with D. Deng, Y. Zhang, G.H.J. van Rees. Journal of Combinatorial Mathematics and Combinatorial Computing, 77(2011), 17-32.

Maximum Leaf Spanning Trees for Grid Graphs, with M. Toulouse. Journal of Combinatorial Mathematics and Combinatorial Computing, 73(2010) 181-193.

Degree sequence conditions for partial Steiner triple systems, with M.S. Keranen, D.L. Kreher, W.H. Kocay. Bulletin of the ICA, 57(2009) 71-73.

A Multilevel Cooperative Tabu Search Algorithm for the Covering Design Problem, with C. Dai, M. Toulouse. Journal of Combinatorial Mathematics and Combinatorial Computing, 68(2009) 33-66.

Mutually Nearly Orthogonal Latin Squares, with G.H.J. van Rees. Journal of Combinatorial Mathematics and Combinatorial Computing, 62(2007) 13-24.

On 3-Hypergraphs with Equal Degree Sequences, with W.L.Kocay. Ars Combinatoria, 82(2007) 145-157.

Constructions and Bounds for (m,3)-Splitting Systems. Discrete Mathematics, with D. Deng, D.R. Stinson, G.H.J. van Rees, R. Wei. 307(2007), 18-37.

There is no (22,8,4) Block Design, with R.T. Bilous, C.W.H. Lam, L.H. Thiel, G.H.J. van Rees,S.P. Radziszowski, W.H. Holzmann, H. Kharaghani. Journal of Combinatorial Designs, 15 (2007) 262-267.

- Constructions of 2-Cover-Free Families and Related Separating Hash Families, with G.H.J. van Rees, R. Wei. Journal of Combinatorial Designs, 14(2006), 423-440.
Variations of the Maximum Leaf Spanning Tree Problem for Bipartite Graphs, with M. Toulouse. Information Processing Letters, 97(2006),129-132.

Covering Designs on 13 Blocks, with M. Greig, G.H.J. van Rees. Utilitas Math. 70(2006) 221-261.

Some NP-Completeness Results on Partial Steiner Triple Systems and Parallel Classes, with M. Toulouse. Ars Combinatoria 80(2006) 45-51.

A Cooperative Multilevel Tabu Search Algorithm for the Covering Design Problem, with C. Dai,M. Toulouse. LNCS 3871(2006), 119-130.

Lotto Designs (pages 529-536), with G.H.J. van Rees. The CRC Handbook of Combinatorial Designs, 2nd Edition(2006)

On {123,124,134}-free systems, with D.R. Stinson, G.H.J. van Rees and R. Wei. Congressus Numerantium , V183 (2006) 161-174.