Giovanni Battista Rizza (Piazza Armerina

Piazza Armerina

Piazza Armerina is an Italian comune in the province of Enna of the autonomous island region of Sicily.-History:...

, February 7, 1924) is an Italian mathematician

Mathematician

A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

, working in complex analysis of several variables

Several complex variables

The theory of functions of several complex variables is the branch of mathematics dealing with functionson the space Cn of n-tuples of complex numbers...

 and in differential geometry: he is best known for his contribution to the theory of pluriharmonic function

Pluriharmonic function

In mathematics, precisely in the theory of functions of several complex variables, a pluriharmonic function is a real valued function which is locally the real part of a holomorphic function of several complex variables. Sometimes a such function is referred as n-harmonic function, where n ≥ 2 is...

s and for the introduction of the now called Rizza manifolds.

Honors

In 1954 he was awarded the Ottorino Pomini prize by the Unione Matematica Italiana, jointly with Gabriele Darbo: the judging commission
included Giovanni Sansone (the president), Alessandro Terracini, Beniamino Segre

Beniamino Segre

Beniamino Segre was an Italian mathematician who is remembered today as a major contributor to algebraic geometry and one of the founders of combinatorial geometry....

, Giuseppe Scorza-Dragoni, Carlo Miranda, Mario Villa and Enzo Martinelli

Enzo Martinelli

Enzo Martinelli was an Italian mathematician, working in the theory of functions of several complex variables: he is best known for his work on the theory of integral representations for holomorphic functions of several variables, notably for discovering the Bochner–Martinelli formula in 1938, and...

 (the secretary). In 1973 He was awarded the golden medal "Benemeriti della Scuola, della Cultura, dell'Arte" by the President of the Italian Republic

President of the Italian Republic

The President of the Italian Republic is the head of state of Italy and, as such, is intended to represent national unity and guarantee that Italian politics comply with the Constitution. The president's term of office lasts for seven years....

. In 1999, the University of Parma

University of Parma

The University of Parma is one of the oldest universities in the world, founded in the 11th century. It is organised in twelve faculties. The University of Parma has currently about 30,000 students.-History:...

, where he worked for more than 35 years, awarded him the title of professor emeritus.

See also

• Pluriharmonic function
  Pluriharmonic function
  In mathematics, precisely in the theory of functions of several complex variables, a pluriharmonic function is a real valued function which is locally the real part of a holomorphic function of several complex variables. Sometimes a such function is referred as n-harmonic function, where n ≥ 2 is...
  
  
• Pseudoconvexity
• Rizza manifold
• Several complex variables
  Several complex variables
  The theory of functions of several complex variables is the branch of mathematics dealing with functionson the space Cn of n-tuples of complex numbers...
  
  

External links

. A meeting in occasion of Rizza's 70th birthday: the first speaker was his former master Enzo Martinelli

Enzo Martinelli

Enzo Martinelli was an Italian mathematician, working in the theory of functions of several complex variables: he is best known for his work on the theory of integral representations for holomorphic functions of several variables, notably for discovering the Bochner–Martinelli formula in 1938, and...

.. Rizza's web site as a member of the "editorial board

Editorial board

The editorial board is a group of people, usually at a publication, who dictate the tone and direction the publication's editorial policy will take.- Board makeup :...

 of the Rivista di Matematica della Università di Parma" mathematics journal.