Petra Wittbold

Prof. Dr. Petra Wittbold is a Professor at the University of Duisburg-Essen, holding a position in the Faculty of Mathematics, specifically within the Department of Mathematics. Her research focuses on nonlinear partial differential equations and applied functional analysis, with a particular emphasis on entropy solutions, evolution equations, and stochastic perturbations. She has contributed significantly to the theory of doubly nonlinear equations, fractional calculus, and variable exponent spaces.

Administratively, she has held roles such as Equal Opportunities Officer for the Faculty of Mathematics (2012-2020), member of the Senate, and appointment commissioner. Her teaching spans advanced courses including Functional Analysis I, Nonlinear Evolution Equations, and Ordinary Differential Equations, reflecting her expertise in both theoretical and applied aspects of analysis.

Prof. Wittbold has supervised numerous doctoral students, including Kerstin Schmitz, Niklas Sapountzoglou, and Martin Scholtes, contributing to their research in nonlinear PDEs and related fields. Her work extends to organizing international workshops and spring schools on topics like evolutionary equations and stochastic methods, fostering collaboration among researchers globally.

Her publications span over three decades, addressing entropy solutions, renormalized solutions, and the interplay between stochastic processes and PDEs. Key contributions include studies on time-fractional porous medium equations and doubly nonlinear integro-differential equations, advancing mathematical analysis and its applications in physics and engineering.