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domingo, 18 de agosto de 2024

Jean-Pierre Ehrmann

Es triste escribir que el gran geómetra Jean-Pierre Ehrmann falleció en enero de 2024.

Estos son sus artículos en Forum Geometricorum. Los puedes descargar todos aquí

  •  (with B. Gibert) A Morley configuration, 1 (2001) 51--58.
  • (with B. Gibert) The Simson cubic, 1 (2001) 107--114.
  • A pair of Kiepert hyperbolas, 2 (2002) 1--4.
  • Congruent inscribed rectangles, 2 (2002) 15--19.
  • (with F. M. van Lamoen) The Stammler circles, 2 (2002) 151--161.
  • (with F. M. van Lamoen) Some similarities associated with pedals, 2 (2002) 163--166.
  • Similar pedal and cevian triangles, 3 (2003) 101--104.
  • Steiner's theorems on the complete quadrilateral, 4 (2004) 35--52.
  • (with F. M. van Lamoen) A projective generalization of the Droz-Farny line theorem, 4 (2004) 225--227.
  • Some geometric constructions, 6 (2006) 327--334.
  • (with H. Connelly and N. Dergiades) Construction of triangle from a vertex and the feet of two angle bisectors, 7 (2007) 103--106.
  • Constructive solution of a generalization of Steinhaus' problem on partition of a triangle, 7 (2007) 187--190.
  • An affine variant of a Steinhaus problem, 8 (2008) 1--5.
  • (with F. J. García Capitán and A. Myakishev) Construction of circles through intercepts to paralells to cevians, 11 (2011) 261--268.