Tanya L. Leise (died January 18, 2023)[1] was an American biomathematician specializing in the mathematical modeling of circadian rhythms[2] and related phenomena such as jet lag[3][4][5] and hibernation.
[7][8] Her dissertation, An Analog to the Dirichlet-to-Nuemann Map and Its Application to Dynamic Elastic Fracture, was supervised by Jay R.
[9] After working as a visiting lecturer at Indiana University, she joined the faculty of the Rose–Hulman Institute of Technology in 1999.
[8] She has also chaired the Amherst Ranked-Choice Voting Commission.
[10] Leise was a winner of the 2008 Lester R. Ford Award of the Mathematical Association of America for her paper with her husband, psychologist Andrew Cohen, "Nonlinear oscillators at our fingertips".