Journal article
Positive definite functions over regular f-rings and representations as sums of squares
Authors
MacCaull WA
Journal
Annals of Pure and Applied Logic, Vol. 44, No. 3, pp. 243–257
Publisher
Elsevier
Publication Date
October 23, 1989
DOI
10.1016/0168-0072(89)90033-x
ISSN
0168-0072