Research

My research interests are in graphy theory and combinatorics. In particular, my main interests are in extremal graph theory and combinatorics. I particularly like questions that are of the following form: “How small can a discrete structure be while still maintaining a particular desired property?” I am forever enamored with the polynomial method. Below is a list of publications and, below that, other activities.

Undergraduate authors are denoted by (u).

In preparation/Submissions/To appear

17.  On Zeros of a Polynomial in a Finite Grid with Anurag Bishnoi, Pete L. Clark, and Aditya Potukuchi
Accepted to: Combinatorics, Probability and Computing 

16. Approaching the minimum number of clues Sudoku problem via the polynomial method with Aden Forrow (u)
Status: in preparation
(And, read the short story here.)

Publications

15.Warning’s Second Theorem with Restricted Variables with Pete L. Clark, and Aden Forrow (u)
Published : Combinatorica 27 (2017) 3, 397-417.

14. Martin Gardner’s minimum no-three-in-a-line problem with Alec Cooper (u), Oleg Pikhurko and Greg Warrington
Published : American Mathematical Monthly, 121 (2014), no. 3, 213-221.
(We note that the published version contains an annoying typographical error in the abstract introduced in the final editing process. The version here eliminates those. And, see the On-line Encyclopedia of Integer Sequences entry A219760.)

13. On the size and structure of graphs with a constant number of 1-factors  with Andrzej Dudek
Published: Discrete Mathematics 312 (2012), 1807-1811

14. Saturation numbers for families of ramsey-minimal graphs with Guantao Chen, M.Ferrara, R. Gould, and C. Magnant
Published: Journal of Combinatorics (2011), 435-456.

13. A Survey of Minimum Saturated Graphs  with J. Faudree, R. Faudree
Published: Electronic Journal of Combinatorics Dynamic Survey 18 (2011), #DS19 36pp.

12. A Sharp Lower Bound for Potentially H-Graphic Degree Sequences with M.Ferrara
(Slightly revised from published version thanks to comments from Vera Sos.)
Published: SIAM Journal on Discrete Mathematics 23 (2009) 1, 517-526.

11. Potentially H-Bigraphic Sequences with M. Ferrara, Mike Jacobson, Mark Siggers
Published: Discussiones Mathematicae Graph Theory 29 (2009) 583-596.

10. Using Edge Exchanges to Prove the Erdos-Jacobson-Lehel Conjecture with M.Ferrara, Ron Gould
Published: Bulletin of the Institute of Combinatorics and its Applications 57 (2009), 73-80.

9. Graphic Sequences with a Realization Containing a Generalized Friendship Graph with J.H. Yin, Gang Chen
Published: Discrete Mathematics 308 (2008) 24, 6226-6232.

8 . Graphic Sequences with a Realization Containing a Complete Multipartite Subgraph with Guantao Chen, M.Ferrara, R. Gould
Published: Discrete Mathematics 308 (2008) 23, 5712-5721.

7 . Degree Sum Conditions in Graph Pebbling  with Anna Blasiak (u)
Published: Australasian Journal of Combinatorics 42 (2008), 83-90.

6 . A note on minimum K_{2,3}-saturated graphs  with Oleg Pikhurko
Published: Australasian Journal of Combinatorics 40 (2008), 211-215.

5 . Minimum Degree and the Minimum Size of K^t_2-saturated graphs with R. Gould
Published: Discrete Mathematics 307 (2007) 9-10, 1108-1114.

4. Graphic Sequences with a Realization Containing a Friendship Graph with M. Ferrara, R. Gould
Published: Ars Combinatoria 85 (2007), 161-171.

3. Constructive Upper Bounds for Cycle Saturated Graphs of Minimum Size  with Ron Gould, Tomasz Luczak
Published:  Electronic Journal of Combinatorics 13 2006, R29 – 19pp.

Extended Abstract

2. On the Alon-Furedi bound with Anurag Bishnoi, Pete L. Clark, and Aditya Potukuchi
Electronic Notes in Discrete Mathematics Volume 54, October 2016, 57-62.

1.  An Erdos-Stone Type Conjecture for Graphic Sequences with M.Ferrara
Electronic Notes in Discrete Mathematics (Proceedings of 6th Czech-Slovak International Symposium, Prague, 2006), Volume 28 (2007), 131-135.

 

Co-authors

Anurag BishnoiAnna BlasiakAlec Cooper, Gang Chen, Guantao ChenPete L. ClarkAndrzej DudekJill FaudreeRalph FaudreeMike FerraraAden Forrow,Ron GouldMike JacobsonTomasz LuczakColton MagnantOleg Pikhurko Aditya Potukuchi Mark Siggers, J.H. Yin, Greg Warrington

 

Activities

I am the local organizer for Discrete Mathematics Day of Northeast Conference, to be held September 20, 2014. In September 2007 and September 2012, I was the local organizer for Discrete Mathematics Day of Northeast Conference and  Discrete Mathematics Day of Northeast Conference.

In the past, I served (2010-2011) as Secretary of Society of Industrial and Applied Mathematics’ Activity Group on Discrete Mathematics. 

 

Talks

Here is a list of available recent talks.

 

Acknowledgements

I am grateful to Middlebury College for support of my research. I am grateful for past support from the Mathematical Sciences Program at the National Security Agency, and the National Science Foundation, particularly the RUI program, and Vermont EPSCoR.