CONVERGENCE THEOREMS FOR SET VALUED AND FUZZY VALUED MARTINGALES AND SMARTINGALES

  • Li, Shoumei (Department of Mathematics Saga University) ;
  • Ogura, Yukio (Department of Mathematics Saga University)
  • Published : 1998.08.01

Abstract

The purpose of this paper is to give convergence theorems both for closed convex set valued and relative fuzzy valued martingales, and sub- and super- martingales. These kinds of martingales, sub- and super-martingales are the extension of classical real valued martingales, sub- and super-martingales. Here we compare two kinds of convergences, in the Hausdorff metric and in the Kuratowski-Mosco sense. We also introduce a new convergence for the fuzzy valued case in the graph sense and obtain convergence theorems.

Keywords