中文

将 Schur-凹型交换副拷贝函数表述为关联副拷贝函数闭包

统计理论 2026-05-13 v2 统计理论

摘要

Ca\mathcal{C}_a 为关联副拷贝函数的集合,Ca\overline{\mathcal{C}}_a 为其在均匀度量 dd_\infty 下的凸包闭包。已知 CaCSC\mathcal{C}_a \subseteq \mathcal{C}_{SC},其中 CSC\mathcal{C}_{SC} 为 Schur-凹型交换副拷贝函数的集合。我们证明了反向包含关系,即 Ca=CSC\overline{\mathcal{C}}_a = \mathcal{C}_{SC}

关键词

引用

@article{arxiv.2605.02858,
  title  = {Characterizing Schur-concave commutative copulas as the closure of associative ones},
  author = {Manuel Úbeda-Flores},
  journal= {arXiv preprint arXiv:2605.02858},
  year   = {2026}
}

备注

The author wish to withdraw this manuscript due to an error discovered which could invalidate the main conclusion of the work. The paper requires a complete revision