About author:QIU Yu-wen(1965-),male,native of Tianjin,engages in computational mathematics;WANG Li-ping(1961-),female,native of Hebi,Henan,an associate profeesor of Hebi Professional Technology College, engages in functional theory;ZHAO Xi-shun(1964-),male,native of Xinxiang,Henan,a profeesor of Sun Yet-sen University,engages in mathematical logic.
QIU Yu-wen, WANG Li-ping, ZHAO Xi-shun. Representations of Co-regular Subsets on Euclidean Spaces [J]. Chinese Quarterly Journal of Mathematics, 2007, 22(2): 252-257.