Urs Kirchgraber

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Urs Kirchgraber (* 1945 ) is a Swiss mathematician who deals with dynamic systems and mathematics education .

Kirchgraber received his doctorate in 1972 under Eduard Stiefel at the ETH Zurich ( An analytical perturbation theory based on polar coordinates in the four-dimensional KS space: application to the motion of an artificial satellite ). He was later professor of mathematics and mathematics education there and retired in 2011.

Among other things, he dealt with methods of perturbation theory in dynamic systems (with applications in celestial mechanics) and later devoted himself intensively to mathematics education and the cooperation between ETH Zurich and grammar schools.

Until 2008 he was the representative of Switzerland in the International Commission for Mathematical Instruction.

Fonts

  • mit Stiefel methods of analytical perturbation calculation and their applications: with numerous examples , Teubner 1978
  • with KJ Palmer Geometry in the neighborhood of invariant manifolds of maps and flows and linearization , Harlow: Longman Scientific and Technical 1990

Individual evidence

  1. ^ Mathematics Genealogy Project