Possui doutorado em Mathematics - Oregon State University (1980), master in Mathematics pela University of Cincinnati (1969) e graduação pela Muskingum College (1967) . Atualmente é full professor of mathematics - University of Colorado at Denver, atuando principalmente nos seguintes temas: optimization, fuzzy, interval, uncertainty e possibilstic theory. Associate Editor da Information Sciences, Board member do Fuzzy Sets and Systems, Interim chair, Department of Physics, University of Colorado, Denver. Research Fellow, Semeion Centro di Scienze della Comunicazione, Rome, Italy.
doctorate at Mathematics from Oregon State University (1980). , acting on the following subjects: optimization, fuzzy, interval, uncertainty and possibilistic.
