I am now getting back to this blog-let after a long break. On the bad side of things, the covid19 virus has attacked the whole world and most countries (not Sweden though) are under a harsh lockdown.
In spite of that, maths move on with nearly a regular speed. I am happy to announce that my collaborator Toyohiko Aiki (a mathematics professor with Japan Women’s university) is now a visiting professor in Karlstad until the end of August 2020. We thank the KK Foundation for kindly supporting this activity.