Jarai, Antal. Regularity Properties of Functional Equations in Several Variables [electronic resource] / by Antal Jarai. - Boston, MA : Springer Science+Business Media, Inc., 2005. - viii, 363 p. : ill., digital ; 24 cm. - Advances in Mathematics ; 8 . ISBN: 9780387244143 (electronic bk.) 9780387244136 (paper) Subjects--Topical Terms: Functional equations.Continuity.Mathematics.Difference and Functional Equations. LC Class. No.: QA431 / .J37 2005 Dewey Class. No.: 515.75