Giovanni Battista Rizza

Giovanni Battista Rizza
Giovanni Battista Rizza
	Giovanni Battista Rizza at work in his home office, in 2003.
Born	7 February 1924; Piazza Armerina, Italy
Died	15 October 2018 (aged 94); Parma, Italy
Nationality	Italian
Alma mater	Università degli Studi di Genova
Known for	Integral representation of pluriharmonic functions; Rizza manifolds; Theory of functions on Algebras;
Spouse	Lucilla Bassotti
Awards	Premio Ottorino Pomini of the Unione Matematica Italiana (1954),; Golden medal "Benemeriti della Scuola, della Cultura, dell'Arte" (awarded by the President of the Italian Republic) (1973);
	Scientific career
Fields	Hypercomplex analysis; Several complex variables; Differential geometry;
Institutions	Università degli Studi di Genova; Istituto Nazionale di Alta Matematica; Sapienza University of Rome; Università degli Studi di Parma;
Doctoral advisor	Enzo Martinelli

Giovanni Battista Rizza (7 February 1924 – 15 October 2018), officially known as Giambattista Rizza, was an Italian mathematician, working in the fields of complex analysis of several variables and in differential geometry: he is known for his contribution to hypercomplex analysis, notably for extending Cauchy's integral theorem and Cauchy's integral formula to complex functions of a hypercomplex variable, the theory of pluriharmonic functions and for the introduction of the now called Rizza manifolds.

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