Rassias, John Michael. <br/><br/>
Functional Equations, Difference Inequalities and Ulam Stability Notions (F.U.N.) 

 -  Nova Science Publishers, Inc.  2010 
 - Mathematics Research Developments Series .
<br/><br/><label>ISBN: </label>9781608764617 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Functional Analysis<br/>Differential inequalities.,Functional equations.,Stability.<br/>MATHEMATICS