Harald Hanche-Olsen


Position and contact information
Associate professor emeritus at the Department of Mathematical Sciences.
I no longer teach, and do not advice students
I share an office with a handful of emeritus professors at room 1129, but you will only find me there sporadically.
Email: harald.hanche-olsen@ntnu.no.
– See also my official home page.
Fields of scientific interest:
Conservation laws and nonlinear partial differential equations
Functional analysis
Mathematical modelling
Stochastic analysis
Jordan operator algebras (no activity for decades)
Jordan operator algebras by Harald Hanche-Olsen and Erling Størmer (Pitman 1984) is available as a free download.
Proceedings volume: Non-Linear Partial Differential Equations, Mathematical Physics, and Stochastic Analysis – The Helge Holden anniversary volume. Editors: Fritz Gesztesy, HH-O, Espen R. Jakobsen, Yuri I. Lyubarskii, Nils Henrik Risebro, Kristian Seip (EMS 2018). I also did the copyediting and final typesetting for this book.
Selected papers:
On Goursat's proof of Cauchy's integral theorem
With Helge Holden: The Kolmogorov–Riesz compactness theorem (arXiv/doi:10.1016/j.exmath.2010.03.001)
– Addendum to the above (arXiv/doi:10.1016/j.exmath.2015.12.003)
With Helge Holden and Eugenia Malinnikova: An improvement of the Kolmogorov-Riesz compactness theorem (arXiv)
With Helge Holden: The Aubin–Lions–Dubinskiĭ theorems on compactness in Bochner spaces (arXiv) (to appear in Pure and Applied Functional Analysis)