Max-Albert Knus is a Swiss mathematician specializing in algebra.
He was born April 14, 1942, in Peseux, Neuchatel. He studied mathematics at ETH Zurich with Beno Eckmann and K. Chandrasekharan, graduating in 1967 with a PhD thesis titled On a class of filtered algebras.
He was a Batelle-fellow at ETH and Brandeis University. He was director of research at University of Geneva. In 1969 he returned to ETH as a professor and became emeritus in 2007.
Knus expanded algebraic number theory to include a wider variety of structures. The classical study considers algebras over a field, whereas Knus considers algebras over a ring as in his monograph Quadratic and Hermitian Forms over Rings. In the preface he acknowledges colleagues that contributed to the science: "Many results in this book were developed by Raman Parimala, Ramaiyengar Sridharan and Manuel Orjanguran. I am deeply grateful to them for doing mathematics in Bombay, Lausanne or Zurich."
Then in 1998 Knus joined Alexander Merkurjev, Markus Rost, and Jean-Pierre Tignol to write The Book of Involutions published by the American Mathematical Society.