At the University of Wisconsin–Madison he is director of the Undergraduate Mathematics Program. After becoming frustrated with high prices of textbooks and poor quality he wrote and made available his own notes for all classes.[8]
^
ab"Sigurd Angenent". Royal Netherlands Academy of Arts and Sciences. Retrieved 16 August 2015.
^"Sigurd Angenent". University of Wisconsin–Madison. Retrieved 16 August 2015.
^Angenent, Sigurd B. (1992),
"Shrinking doughnuts"(PDF), Nonlinear diffusion equations and their equilibrium states, 3 (Gregynog, 1989), Progress in Nonlinear Differential Equations and their Applications, vol. 7, Boston, MA: Birkhäuser, pp. 21–38,
MR1167827.