I am an Associate Professor at Iowa State University. My fields of interest are extremal and probabilistic combinatorics and graph theory.
Congratulations to Endre Szemerédi, Abel prize laureate.  Read the tribute by Timothy Gowers.
M166 (Calculus II) students click for MyLabsPlus.
Research docs (PDF):	CV	Research Statement	Publications and Talks
	Latest preprints (PDF): On the approximate shape of degree sequences that are not potentially H-graphic, with C. Erbes, M. Ferrara and P. Wenger, submitted. Twins in graphs, with M. Axenovich and T. Ueckerdt, submitted. On diamond-free subposets of the Boolean lattice, with L. Kramer and M. Young, Journal of Combinatorial Theory, Series A 120(3) (2012), 545--560. Induced saturation number, with J. J. Smith, Discrete Mathematics, 312(21) (2012), pp. 3096--3106. Lower bounds for identifying codes in some infinite grids, with B. Stanton, Electronic Journal of Combinatorics 17(1) (2010) Research Paper 119, 16pp.
On the computation of edit distance functions, submitted. On the edit distance from K2,t-free graphs, with T. McKay, submitted. The edit distance function and symmetrization, submitted.
Other materials: My small world (6 degrees) talk at The Citadel and the ISU Math Club My identifying code talks: ECpE Faculty Seminar, Discrete Math Seminar Click for the Extremal Graph Theory Page (including topic list) and Syllabus Current and former students.

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E-mail address: rymartin@iastate.edu Room: 428 Carver Hall Mailing Address: Phone#: (515) 294-1282 DEPARTMENT OF MATHEMATICS 396 CARVER HALL IOWA STATE UNIVERSITY AMES, IOWA 50011-2064 Math Office#: (515) 294-1752   General Summer Schedule: May 13-Aug 16, 2013 Subject to various interruptions   M T W Θ F 9am           10am   Research Meeting (ZB) 428 Carver   Research Meeting (ZB) 428 Carver   11am   Office Hour must make appointment 428 Carver       12pm           1pm   Research Meeting (LK) 428 Carver   Research Meeting (LK) 428 Carver   2pm       3pm           4pm           September 21-22: MIGHTY LIII, Ames, IA: Ron Graham (UCSD) and Persi Diaconis (Stanford) plenary speakers, colloquium by Fan Chung (UCSD) November 29-December 01: Third Abel Conference: A Mathematical Celebration of Endre Szemerédi, Minneapolis, MN March 16-18: Extremal Combinatorics @ Illinois (EXCILL 2), Champaign, IL March 19: University of Delaware Discrete Mathematics Seminar, Diamond-free families of the Boolean lattice, Newark, DE April 26-28: AMS Spring Central Sectional Meeting #1090, Ames, IA: Endre Szemerédi, Erdős lecturer. Special Session: Extremal Combinatorics (SS 7A) Penny Haxell, ISU invited speaker. Also: Graphs, Hypergraphs and Counting (SS 26A) We May 29 Mo Jun 03 American Regions Mathematics League (ARML) contest Las Vegas, NV Mo Jul 01 Fr Jul 05 Erdős100: Erdős Centennial Budapest, Hungary Sa Oct 05 Su Oct 06 AMS Fall Southeastern Sectional Meeting #1092 Special Session: Partially Ordered Sets (SS 18A) Also: Extremal Graph Theory (SS 2A) Louisville, KY Sa Nov 02 Su Nov 03 Atlanta Lecture Series Emory University Atlanta, GA Legend: Teaching Meeting Office Occasional Event

The rest of the site My CV (PDF) Publications & Talks Mathematics Teaching Blackboard Learn MyMathLab Wolfram Demonstrations for ISU courses ISU (Grad) Enumerative Combinatorics (M606, S11) Page ISU (Grad) Extremal Graph Theory (M608, S12) Page Discrete Math Seminar

Other web pages Iowa State University ISU Mathematics Department Parks Library List of Mathematics Journals ISU Blackboard Learn CourseCompass ISU Access+ Mathematics Colloquium

A man would make but a sorry chemist if he attended to that department of human knowledge alone.  If your wish is to become really a man of science and not merely a petty experimentalist, I should advise you to apply every branch of natural philosophy, including mathematics.

-- Mary Shelley, Frankenstein