Najjari, Vadoud Using copulas to model dependence between crude oil prices of west Texas intermediate and Brent-Europe. (English) Zbl 1474.62171 Sahand Commun. Math. Anal. 17, No. 4, 49-59 (2020). MSC: 62H05 62H12 62H20 62B10 62P20 PDFBibTeX XMLCite \textit{V. Najjari}, Sahand Commun. Math. Anal. 17, No. 4, 49--59 (2020; Zbl 1474.62171) Full Text: DOI
Kinaci, Harun; Najjari, Vadoud A new model for the secondary goal in DEA. (English) Zbl 1438.62095 Sahand Commun. Math. Anal. 14, No. 1, 173-183 (2019). MSC: 62H05 62H20 PDFBibTeX XMLCite \textit{H. Kinaci} and \textit{V. Najjari}, Sahand Commun. Math. Anal. 14, No. 1, 173--183 (2019; Zbl 1438.62095) Full Text: DOI
Najjari, Vadoud On generators in Archimedean copulas. (English) Zbl 1412.62058 Sahand Commun. Math. Anal. 12, No. 1, 155-166 (2018). MSC: 62H05 62H20 PDFBibTeX XMLCite \textit{V. Najjari}, Sahand Commun. Math. Anal. 12, No. 1, 155--166 (2018; Zbl 1412.62058) Full Text: DOI
Najjari, Vadoud; Rahimi, Asghar A note on “Generalized bivariate copulas and their properties”. (English) Zbl 1365.62186 Sahand Commun. Math. Anal. 2, No. 2, 61-64 (2015). MSC: 62H05 62H20 PDFBibTeX XMLCite \textit{V. Najjari} and \textit{A. Rahimi}, Sahand Commun. Math. Anal. 2, No. 2, 61--64 (2015; Zbl 1365.62186) Full Text: Link
Tekin, Sinem Tuǧba Şahin; Najjari, Vadoud; Örkcü, H. Hasan Simulation study on copulas. (English) Zbl 1321.62048 Sahand Commun. Math. Anal. 1, No. 2, 55-63 (2014). MSC: 62H05 62G30 PDFBibTeX XMLCite \textit{S. T. Ş. Tekin} et al., Sahand Commun. Math. Anal. 1, No. 2, 55--63 (2014; Zbl 1321.62048) Full Text: Link