期刊
JOURNAL OF NONLINEAR SCIENCES AND APPLICATIONS
卷 5, 期 5, 页码 357-378出版社
INT SCIENTIFIC RESEARCH PUBLICATIONS
DOI: 10.22436/jnsa.005.05.06
关键词
Ordered set; fuzzy ordered set; Zorn's lemma; fixed point; selection; extension; variational principle; multivalued mapping; fuzzy metric spaces; fuzzy Riesz spaces; fuzzy positive linear operator; Hahn-Banach theorem