Authors: Ioan Gavrea Heinz H Gonska Daniela P Kacsó 
              Publish Date: 2013/04/17
              Volume: 33, Issue: 1-2, Pages: 96-105 
			  
              Abstract
              In the present paper we give a new approach in proving the common variationdiminishing property for operators of a certain form and we apply this method in order to show that some wellknown positive linear operators have this property The introduction includes several historical remarks in it also a first attempt is made to draw clear lines between the various meanings of ”variationdiminuition” which were employed in the past
              
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