homothecy

homothecy

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  • Homothetic transformation — In mathematics, a homothety (or homothecy or dilation) is a transformation of space which takes each line into a parallel line (in essence, a similarity that is similarly arranged). All dilatations form a group in either affine or Euclidean… …   Wikipedia

  • Francis Lefebure — Dr. Francis Lefebure (September 17, 1916 – March 19, 1988) was a French physician, known for his study of phosphenes.Early lifeLefebure was born in Paris, France. His mother, Claire de Saint Rémy, was a famous painter and poet. His father, a… …   Wikipedia

  • homothety — noun homothecy …   Wiktionary

  • homothet — noun homothecy …   Wiktionary

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