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Superhuman Counting

Mathematics Green Chair Workshop

Speaker: Sommer Gentry (United States Naval Academy and Johns Hopkins University School of Medicine)

Abstract: As seen on the FOX show Superhuman: this workshop will get you ready for the “Rectangled” challenge that Professor Gentry solved on TV! In this interactive workshop, you’ll make new friends, warm up with mathematical games, and tackle a combinatorics puzzle that can be productively played within a number of different ways. The challenge is to count sub-rectangles in an m-by-n grid and in an m-by-n grid with corners cut out. The workshop is for everybody who’s curious: there are no mathematical prerequisites. If you can count and tally shapes, you can build your own methods for this puzzle.


Sommer Gentry is Professor of Mathematics at the United States Naval Academy, and is also on the faculty of the Johns Hopkins University School of Medicine. She is a senior investigator with the U.S. Scientific Registry for Transplant Recipients. She has a B.S. in Mathematical and Computational Science and an M.S. in Operations Research, both from Stanford University, and a Ph.D. in Electrical Engineering and Computer Science from MIT.

Professor Gentry builds operations research models to improve access to organ transplantation. She has ignited revolutionary changes in the distribution of organs for transplant, by showing that redistricting U.S. liver allocation areas would reduce geographic disparity in access to liver transplants and save hundreds of lives each year.  She also designed optimization methods to maximize the number of kidney transplants possible through kidney exchanges, and served as an advisor to the United States and Canada in their efforts to create national paired donation registries. Her work helped convince Congress to clarify the legal status of kidney paired donation in December 2007.

Her research is funded by the National Institutes of Health and her findings have been highlighted in major media outlets including Scientific American, Time Magazine, Reader’s Digest, Science, the Discovery Channel, and National Public Radio.  Gentry has also received the MAA’s Henry L. Alder award for distinguished teaching.

Tuesday, February 25 at 5:00 pm to 6:20 pm

Rees-Jones Hall, 211
2901 West Lowden Street, Fort Worth, TX 76109

Event Type

Lectures & Presentations

Target Audience

Students, Faculty & Staff


Academic, Science & Technology


Green Honors Chair Program

Mathematics, College of Science & Engineering
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