Our mission is to advance research, education, and applications of combinatorics. 

New York Combinatorics Seminar (Fri 12:00 - 1:00 pm ET)    YouTube Channel       Previous  Semesters

Janos Pach started the New York Combinatorics Seminar in 1999 and organized it till 2008. Jonathan Cutler, Christopher Hanusa, and Sandra Kingan founded the New York Combinatorics Group and restarted the seminar in 2011. It has been running continuously since then.  Any questions or suggestions? Please email Sandra Kingan.

In addition to the weekly seminar, we organize a weekly learning seminar as well as several other events:

Combinatorics and Geometry Learning Seminar (Wed 4:15 - 5:30 pm ET)  

NY Combinatorics Summer Research Program (NYC-SRP)

Graph Theory Day of New York  

• GTD82 2026 (Sat Oct 24, 2026 @ Seton Hall University)

• GTD81 2025 (Fri Nov 7, 2025 @ Montclair State University) 

• GTD80 2024 (Fri Nov 8, 2024 @ The Graduate Center)

New York Graph Theory Workshop (week after Memorial Day in 2024, 2026, 2028...)

• NYGTW 2026 (May 26 - 28, 2026)

• NYGTW  2024 (May 28 - 30, 2024)

New York Combinatorics Day  

• NYCD 2026 (Fri Apr 17, 2026 @ Stevens Institute of Technology)

• NYCD 2025 (Fri Mar 21, 2025 @ The Graduate Center)

• NYCD 2024 (Sat Apr 13, 2024 @ Hofstra University)

Combinatorics Research Workshop (week after Memorial Day in 2025, 2027,2029...) 

• CRW 2027 (May 25 - May 27, 2027)

• CRW 2025 (July 21 - 24, 2025)

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Collegiality Code

New York Combinatorics strives to provide a welcoming and supportive environment for all. Among the primary benefits of participating in our events are meeting new mathematicians and enjoying collaborations with old and new colleagues. We are committed to fostering a community of respect, collegiality, and sensitivity. The study of mathematics is challenging intellectually as well as emotionally and often even mildly un-collegial behavior can have a highly detrimental effect on another’s ability to focus. We expect our participants to act professionally and exhibit inclusive behavior. 

Here are some ways you can help foster collegiality:

• Encourage mutual respect for similarities and differences—in background, expertise, judgments, and assigned responsibilities—with the goal of establishing mutual trust;

• Welcome and encourage diverse mathematical techniques and approaches; and

• Avoid demeaning others or aggressively challenging their competence or mathematical abilities.

Virtual participants must represent themselves on zoom by their full name that they use for their professional work.

This code is adopted from the one used by the Simon Laufer Mathematics Institute (MSRI)

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Other Discrete Math Events in NYC

New York Number Theory Seminar and the annual Combinatorial and Additive Number Theory Conference

NYC Geometry Seminar

Queens Experience in Discrete Mathematics @York University

NYC Discrete Math REU @Baruch College