Qunibi, Iman Z. Continuity of positive linear functionals on \(PL^*\)-algebras. (English) Zbl 0737.46041 J. Nat. Sci. Math. 30, No. 2, 13-18 (1990). MSC: 46J05 46H05 PDFBibTeX XMLCite \textit{I. Z. Qunibi}, J. Nat. Sci. Math. 30, No. 2, 13--18 (1990; Zbl 0737.46041)
Rehman, Fazal-Ur; Ahmad, B. Common fixed point theorems in compact metric space. (English) Zbl 0731.54032 J. Nat. Sci. Math. 30, No. 2, 31-36 (1990). Reviewer: T.Kubiak (Grahamstown) MSC: 54H25 PDFBibTeX XMLCite \textit{F.-U. Rehman} and \textit{B. Ahmad}, J. Nat. Sci. Math. 30, No. 2, 31--36 (1990; Zbl 0731.54032)
Pervaiz, Muhammad Khalid Covariance matrix estimation in complex surveys for dependent samples. (English) Zbl 0723.62003 J. Nat. Sci. Math. 30, No. 2, 1-11 (1990). MSC: 62D05 PDFBibTeX XMLCite \textit{M. K. Pervaiz}, J. Nat. Sci. Math. 30, No. 2, 1--11 (1990; Zbl 0723.62003)
Khan, Liaqat Ali Some fixed point theorems for involutory mappings in complete metrizable linear topological spaces. (English) Zbl 0723.47048 J. Nat. Sci. Math. 30, No. 2, 45-50 (1990). MSC: 47H10 54H25 PDFBibTeX XMLCite \textit{L. A. Khan}, J. Nat. Sci. Math. 30, No. 2, 45--50 (1990; Zbl 0723.47048)
Exton, Harold A recurrence relation for a quadruple hypergeometric function with SL symmetry. (English) Zbl 0721.33007 J. Nat. Sci. Math. 30, No. 2, 27-29 (1990). Reviewer: H.Exton MSC: 33C70 33C80 35J05 22E46 PDFBibTeX XMLCite \textit{H. Exton}, J. Nat. Sci. Math. 30, No. 2, 27--29 (1990; Zbl 0721.33007)
Bajpai, S. D. Formulae involving Bessel polynomial and Meijer’s G-function. (English) Zbl 0721.33004 J. Nat. Sci. Math. 30, No. 2, 37-43 (1990). Reviewer: H.Exton (Dunrossness) MSC: 33C60 33C10 33C45 PDFBibTeX XMLCite \textit{S. D. Bajpai}, J. Nat. Sci. Math. 30, No. 2, 37--43 (1990; Zbl 0721.33004)
Ahmad, B.; Khan, Moizuddin On semi-boundary in topological spaces. (English) Zbl 0718.54003 J. Nat. Sci. Math. 30, No. 2, 51-57 (1990). MSC: 54A05 54C08 PDFBibTeX XMLCite \textit{B. Ahmad} and \textit{M. Khan}, J. Nat. Sci. Math. 30, No. 2, 51--57 (1990; Zbl 0718.54003)
Ahmad, B. On Iseki’s BCI-algebras. II. (English) Zbl 0718.06010 J. Nat. Sci. Math. 30, No. 2, 19-25 (1990). MSC: 06F35 PDFBibTeX XMLCite \textit{B. Ahmad}, J. Nat. Sci. Math. 30, No. 2, 19--25 (1990; Zbl 0718.06010)
Chaudhry, Muhammad Anwar Characterization of weakly positive implicative BCI-algebras. (English) Zbl 0718.06009 J. Nat. Sci. Math. 30, No. 2, 59-75 (1990). MSC: 06F35 PDFBibTeX XMLCite \textit{M. A. Chaudhry}, J. Nat. Sci. Math. 30, No. 2, 59--75 (1990; Zbl 0718.06009)