Orlando Eugenio Villamayor, Argentine mathematician (Buenos Aires 22 June 1923 – Paris, France 22 February 1998)

Formulated algebraic theory of quadratic forms and Clifford algebras for projective modules of finite type (with Artibano Micali)

Introduced the concept of V-rings

With K.R. Mount introduced the concept of Jacobian extension of ideals (1974)

Authored Nuevo planteo de la ecuación dinâmica de los gases (1949)

EPONYMY

Karoubi-Villamayor K algebraic functors

Karoubi-Villamayor K groups

Hattori-Villamayor-Zelinsky sequences

Villamayor algebras

Villamayor theorem (1954)

Villamayor lemma

Villamayor-Zelinsky map