József Sándor

József Sándor (born November 19, 1956 in Forteni (Farcád) near Odorheiu Secuiesc , Romania ) is a Romanian mathematician of Hungarian ethnicity.

Sandor studied mathematics at the Babeș-Bolyai University of Cluj from 1976 to 1980 and then taught mathematics at high schools (Hermannstadt, Odorheiu Secuiesc). In 1997 he went back to teaching at Babeș-Bolyai University, where he received his doctorate in 1999 and professor in 2003.

Sandor deals with analysis (special functions such as gamma functions, geometry of Hilbert and Banach spaces, nonlinear optimization, inequalities), number theory and geometry with a focus on inequalities . Different types of means and inequalities are named after him.

With Dragoslav Mitrinovic and Borislav Crstici he published a handbook of number theory.

Fonts

• with Dragoslav Mitrinović : Handbook of number theory, volume 1, Kluwer 1996 (in collaboration with Borislav Crstici; the second volume is by Sandor and Crstici)
• Geometric Inequalities (Hungarian), Cluj 1988
• Geometric theorems, diophantine equations and arithmetic functions American Research Press, Rehoboth, NM, USA, 2002.
• Selected Chapters of Geometry, Analysis and Number theory, RGMIA Monographs in Mathematics, Victoria University of Technology, Australia, 2006.

Web links

• Homepage