caption doctoral_advisor birth_place image_size nationality fields workplaces birth_date residence image article_title name alma_mater
helge holden , oslo 2012 raphael høegh-krohn oslo , norway 150px nor norwegian mathematics norwegian university of science and technology 28 september 1956 trondheim , norway holden helge.jpg helge holden
 helge holden university of oslo
helge holden

helge holden -lrb- born 28 september 1956 -rrb- is a norwegian mathematician working in the field of differential equations and mathematical physics .
he took the dr.philos .
degree at the university of oslo in 1985 .
the title of his dissertation with raphael høegh-krohn was `` point interactions and the short-range expansion .
a solvable model in quantum mechanics and its approximatio '' .
he was appointed professor at the norwegian institute of technology -lrb- now : the norwegian university of science and technology -rrb- in 1991 .
his research interests are differential equations , mathematical physics -lrb- in particular hyperbolic conservation laws and completely integrable systems -rrb- , stochastic analysis , and flow in porous media .
