Norman Johnson

Norman Johnson

Norman W. Johnson
Información personal
Nacimiento 12 de noviembre de 1930 Ver y modificar los datos en Wikidata
Chicago (Estados Unidos) Ver y modificar los datos en Wikidata
Fallecimiento 13 de julio de 2017 Ver y modificar los datos en Wikidata (86 años)
Seekonk (Estados Unidos) Ver y modificar los datos en Wikidata
Residencia Estados Unidos
Nacionalidad Estadounidense
Educación
Educado en Universidad de Toronto
Supervisor doctoral H. S. M. Coxeter
Información profesional
Área Matemáticas
Conocido por Sólido de Johnson (1966)
Obras notables sólido de Johnson Ver y modificar los datos en Wikidata

Norman W. Johnson (12 de noviembre de 1930-13 de julio de 2017) fue un matemático estadounidense que trabajó en el Wheaton College de la Universidad de Massachusetts. Consiguió su Ph.D. por la Universidad de Toronto en 1966 con una tesis titulada The Theory of Uniform Polytopes and Honeycombs bajo la supervisión de H. S. M. Coxeter.

En su tesis doctoral de 1966 Johnson descubrió un pequeño grupo de tres polícoros-estrella uniformes parecidos a antiprismas llamados los antiprismas de Johnson.

En 1966 enumeró 92 poliedros convexos no uniformes de caras regulares. Victor Zalgaller probó más tarde, en 1969, que la lista de Johnson estaba completa y el conjunto es conocido desde entonces como los sólidos de Johnson.

Johnson también participó en el Uniform Polychora Project, un esfuerzo para encontrar y nombrar politopos de mayores dimensiones.

Obras

  • Hyperbolic Coxeter Groups [1]
  • Mostly Finite Geometries ISBN 0-8247-0035-X
  • Convex Solids with Regular Faces (or Convex polyhedra with regular faces), Canadian Journal of Mathematics, 18, 1966, pages 169–200. (Contiene la enumeración original de los 92 sólidos de Johnson y la conjetura de que no hay otros.)
  • The Theory of Uniform Polytopes and Honeycombs, Ph.D. Disertación, University of Toronto, 1966

Enlaces externos


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