View of Manhattan from Brooklyn Heights

Associate Professor
Department of Mathematics
Brooklyn College
2900 Bedford Avenue, Brooklyn, NY 11210

Office: 2317B Old Ingersoll
Email: skingan at

My area of research is combinatorics - matroid theory, graph theory, and combinatorial algorithms with applications to network science.

My areas of interest are broader and include linear and abstract algebra, probability, statistics, history of mathematics, and climate science.

Research Publications and Talks supported by the following PSC CUNY grants:

  • Award #66305-00 44  (July 2013 - June 2014)
  • Award #65064-00 43  (July 2012 - June 2013)
  • Award #64181-00 42 (July 2011 - June 2012)
  • Award #63076-00 41 (July 2010 - June 2011)

The Matroid Theory Pages have among other things a large bibliography of matroid papers and links to my matroid software Oid

I'm involved in several large grant-supported educational projects:

  • PI for Mathematics and Social Advocacy supported by an NSF DUE Award #0942670 (co-PI Jeff Suzuki, July 2010 - June 2013)

  • PI for the Gap Project supported by CUNY's Office of Academic Affairs, Improving Math Learning Project (co-PI Jun Hu and Anthony Clement, Jan 2010 - June 2012)

  • Brooklyn College Liaison for the Numeracy Infusion Course for Higher Education supported by NSF DUE Award #1121844 (PI Esther Wilder, co-PIs Frank Wang, Dean Hurley, Oct 2011 - Oct 2014)
Papers and Talks from the Educational Projects.

Here is a recent article on my work by BC News.

Here is another article that appeared in International Innovations, North America, Issue No 5, October 2012, Edifying Education: Creating a firm foundation for education excellence in North America.

My posts on the CUNY Math Blog

If you know me, connect with me on Linked in or CUNY Academic Commons or Academia.

My Google scholar page is here.

I co-organize the New York Combinatorics Seminar, on Fridays at 11:30 am at the Graduate Center with Jonathan Cutler, Christopher Hanusa, and Kerry Ojakian.

I am faculty advisor for the Math Club. The math club hosts the Brooklyn College Math Club Colloquium. Math Club Photos 2010 - 2011

In March 2012 Joe Bonin and I organized the special session on Matroid Theory at the American Mathematical Society (Eastern Section) meeting in Washington DC.

Details of service activities are listed in the Brooklyn College Faculty Profile.

Professional Affiliations

American Mathematical Society (AMS)

Society for Industrial and Applied Mathematics (SIAM)

International Linear Algebra Society (ILAS)

National Numeracy Network

The Contributions of Dominic Welsh to Matroid Theory by James Oxley.

A biographical memoir of John Hammersley by Dominic Welsh and Geoffrey Grimmett.

The academic family tree of John Hammersley.

Home Pages of Matroid Theorists

Home Pages of Combinatorial People and Groups

Combinatorics Conferences

Math Department

Brooklyn College

CUNY Graduate Center

--MR Lookup

--Discrete Math
--Geometric Design


--Metro NY Section

Discrete Mathematics Days in the Northeast



Biographies of Women in Math

Wolfram MathWorld

The Right War

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