从Schoenberg到Pick-Nevanlinna：变差函数类的完整描述
From Schoenberg to Pick-Nevanlinna: Toward a complete picture of the variogram class
摘要：
我们表明，一个大的变异函数的子类是封闭的产品和一些理想的稳定性，如产品的特殊组合物，可以在建议的设置。我们引入了新的Schoenberg-Lévy型核函数，并证明了旋转不变变差函数的一些重要性质。
英文摘要：
We show that a large subclass of variograms is closed under products and that some desirable stability properties, such as the product of special compositions, can be obtained within the proposed setting. We introduce new classes of kernels of Schoenberg-Lévy type and demonstrate some important properties of rotationally invariant variograms.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
