Living with Infinities

Understand

This is the written version of a talk given in memory of Gunnar K\"{a}ll\'{e}n, at the Departments of Theoretical Physics, Physics, and Astronomy of Lund University on February 13, 2009.

• It will be published in a collection of the papers of Gunnar K\"{a}ll\'{e}n, edited by C.
• Jarlskog and A.
• C.