Friedrich Littmann's Homepage

Email Friedrich dot Littmann at ndsu dot edu (replace dot with . and at with @)
Office 408 F, Minard Hall
Phone 701 231 6956

I am Chair in the Department of Mathematics at North Dakota State University in Fargo. Here is the link to the Math department homepage.


My research deals with problems at the intersection of analytic number theory, classical Fourier analysis, and approximation problems on the real line. I am particularly interested in the Beurling-Selberg extremal problem and its generalizations to weighted versions in the metric of de Branges Hilbert spaces of entire functions.

Selected publications

  • Extremal functions in de Branges and Euclidean spaces II. Amer. J. Math. 139, no. 2 (2017), 525 - 566 (with E. Carneiro)
  • Hilbert spaces and the pair correlation of zeros of the Riemann Zeta function. J. Reine Angew. Math. 725 (2017), 143 - 182 (with E. Carneiro, V. Chandee, M. Milinovich)
  • Extremal functions in de Branges and Euclidean spaces. Adv. Math 260 (2014), 281 - 349 (with E. Carneiro)
  • Gaussian subordination for the Beurling-Selberg extremal problem. Trans. Amer. Math. Soc 365 (2013), 3493 - 3534 (with E. Carneiro, J.D. Vaaler)

    A full list of my publications can be found here.


    Blackboard contains homework problems, class notes, and deadlines for my current classes.

    Graduate Students

  • Mark Spanier (Ph.D. 2015)
  • Syed Husain (Ph.D. 2023)

    In my spare time I enjoy reading, writing and listening to music.