Lisa Piccirillo

Lisa Marie Piccirillo (born 1990 or 1991) is an American mathematician specializing in low-dimensional topology. She is a Professor and holds the Sid W. Richardson Foundation Regents Chair in Mathematics at the University of Texas at Austin. Quotes A Knot theory knot is said to be slice if it bounds a Embedding#Differential topology smooth properly embedded Disk (mathematics) disk in the Ball (mathematics) 4-ball. We demonstrate that the Conway knot, 11n34 in the Rolfsen tables, is not slice. This completes the classification of slice knots under 13 Knot theory#Knot diagrams crossings, and gives the first example of a non-slice knot which is both topologically slice and a positive mutant of a slice knot. March 2020 The Conway knot is not slice Annals of Mathematics 191 2 581–591 https://projecteuclid.org/journals/annals-of-mathematics/volume-191/issue-2/The-Conway-knot-is-not-slice/10.4007/annals.2020.191.2.5.short preprint at arxiv.org Graduate Student Solves Decades-Old Conway Knot Problem I didn’t allow myself to work on it during the day,” she said, “because I didn’t consider it to be real math. I thought it was, like, my homework. https://www.quantamagazine.org/graduate-student-solves-decades-old-conway-knot-problem-20200519/ It’s really [three- and four-dimensional shapes] that are exciting for me, but the study of these things is deeply linked with knot theory. https://www.quantamagazine.org/graduate-student-solves-decades-old-conway-knot-problem-20200519/ External links Richard Borcherds, Is the Conway knot slice? (After Lisa Piccirillo) February 4, 2021 Richard E Borcherds, YouTube https://www.youtube.com/watch?v=XewXN4i5Or4 From Small Town Girl To Breakout Star in Mathematics Turing, YouTube March 3, 2026 https://www.youtube.com/watch?v=MVFRnzMWEcE Category:Living people Category:Women mathematicians from the United States Category:Women academics from the United States Category:Massachusetts Institute of Technology faculty Category:Women born in the 1990s