Ryan Martin
Position
- Professor
- Editor-in-Chief of the journal Order
- 2025-2026 Fulbright Scholar at the University of Birmingham
From September 2025 to June 2026 I will be a Fulbright Scholar at the University of Birmingham.
My research was partially supported by a grant from the Simons Foundation (#709641, 2020-2025).
My fields of interest are extremal graph theory, extremal poset theory, probabilistic methods, and random models in combinatorics.
My research was partially supported by a grant from the Simons Foundation (#709641, 2020-2025).
My fields of interest are extremal graph theory, extremal poset theory, probabilistic methods, and random models in combinatorics.
Contact
Email
rymartin@iastate.edu
Phone
515-294-1282
428 Carver Hall
411 Morrill Rd.
Ames
,
IA
50011-2104
Social Media and Websites
Education
- Ph.D., Mathematics, Rutgers University, 2000
- B.Sc., Mathematics, University of Delaware, 1995
- Future and past travel and other activities.
- I will be a Fulbright Scholar at the University of Birmingham from September 2025 to June 2026.
- I received an award from the Distinguished Guest Fellowship Programme in Hungary by the Hungarian Academy of Sciences (MTA) and was based at the Alfréd Rényi Institute of Mathematics in Budapest from July 2023 through January 2024.
- I was a visitor of Maria Axenovich at the Karlsruhe Institute of Technology, Germany via the German Academic Exchange Service (DAAD) from January to March 2020.
- I was a Fulbright US Scholar as part of the Budapest Semesters in Mathematics program at the Alfred Rényi Institute of Mathematics from September to December 2019.
- I was a scholar-in-residence at the Institute for Mathematics and its Applications (IMA) at the University of Minnesota for the Thematic Year on Discrete Structures from August 2014 to May 2015.
Latest preprints:
- Tiling randomly perturbed multipartite graphs, with E. Gomez-Leos, submitted.
- Tiling randomly perturbed bipartite graphs, with E. Gomez-Leos, submitted.
- On the proper rainbow saturation numbers of cliques, paths, and odd cycles, with D. Baker, E. Gomez-Leos, A. Halfpap, E. Heath, J. Miller, A. Parker, H. Pungello, C. Schwieder, N. Veldt, submitted.
- On a generalization of a result of Kleitman, with B. Patkós, Ann. Comb., (2025), (12pp.) [Journal Link]
- Induced saturation of the poset 2C2, with N. Veldt, Ann. Comb., (2025), (14pp.) [Journal Link]
- On the rainbow planar Turán number of paths, with E. Gyõri, A. Paulos, C. Tompkins, and K. Varga, Discrete Math. 348, (2025), no. 10, Article No. 114523. [Journal Link]
- A note on the Erdős matching conjecture, with B. Patkós, Studia Sci. Math. Hungar. 62, (2025), no. 1, 63--69. [Journal Link]
- Saturation of k-chains in the Boolean lattice, with N. Veldt, Electron. J. Combin. 32, (2025), no. 1, P1.55 (13pp.) [Journal Link]
- The maximum number of odd cycles in a planar graph, with E. Heath and C. Wells, J. Graph Theory 108, (2025), no. 4, 745-780. [Journal Link].
- On graphs embeddable in a layer of a hypercube and their extremal numbers, with M. Axenovich and C. Winter, Ann. Comb. 28 (2024), 1257-1283. [Journal Link].
- Proper edge colorings of planar graphs with rainbow C4-s, with A. Gyárfás, M. Ruszinkó, and G.N. Sárközy, J. Graph Theory 107, (2024), no. 4, 833-846. [Journal Link].
Teaching:
- Fall 2025-Spring 2026: On leave, Fulbright Scholar, University of Birmingham
Other materials:
- Edit distance survey: The edit distance in graphs: methods, results and generalizations, Recent Trends in Combinatorics, 31--62, IMA Vol. Math. Appl., 159, Springer, Cham, 2016. [Errata]
- Lake Michigan Workshop slides: "The edit distance on graphs": Part I, Part II, Part III
- Slides from the Pittsburgh+Pirate Minisymposium Schedule on Randomly Perturbed (Hyper)graphs.
- Current and former students.
- Discrete Math seminar page.