Since 1971 Arkiv för Matematik has been published by Institut Mittag-Leffler, an international research institute for mathematics under the auspices of the Royal Swedish Academy of Sciences.
On the partial differential equation u ${}_{x}^{2}$ uxx+2uxuyuxy+u ${}_{y}^{2}$ uyy=0
Gunnar Aronsson. (1968)
Inequalities that sharpen the triangle inequality for sums of $N$ functions in $L^p$
Eric A. Carlen, et al. (2020)
