Józef H. Przytycki
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Józef Henryk Przytycki is a mathematician specializing in the fields of knot theory and topology. In 1987, he and Pawel Traczyk published "Invariants of links of Conway type" (Kobe J.Math., 4, 1987, 115-139.), which included a description of what is now called the HOMFLY(PT) polynomial; postal delays prevented Przytycki & Traczyk from receiving full recognition alongside the other six discoverers.
A native of Poland, Dr. Przytycki received a Master of Science degree in mathematics from Warsaw University in 1977 and, after emigrating to the United States, a Ph.D. in mathematics from Columbia University, where his advisor was Dr. Joan Birman. He is currently a professor of mathematics at the George Washington University in Washington, DC, United States. He is married with children to computational biologist and mathematician Teresa Przytycka.
His older son, born November 11th, 1987 is named Tomasz, and his younger son, born December 1st, 1989 is named Pawel.