In this paper a sufficient and necessary condition for copulas involving weak Schur-concavity is given. The weak geometric Schur concavity is introduced and studied. Some examples are provided. We consider the left block symmetry combined with the right block symmetry and answer some questions proposed by Wang Qin. Finally, some questions for further research are presented.
ZHANG Kongsheng
, LI Bainian. , {{custom_author.name_en}}.
Properties on Bivariate Copula. Journal of Systems Science and Mathematical Sciences, 2010, 30(12): 1719-1726 https://doi.org/10.12341/jssms09446