Hilbert-Samuel重数与Hilbert-Kunz重数之间的插值
Interpolating Between Hilbert-Samuel and Hilbert-Kunz Multiplicity
摘要：
我们定义了一个函数，称为s-多重性，插值之间的希尔伯特-塞缪尔多重性和希尔伯特-昆兹多重性比较权力的理想的Frobenius权力的理想。该函数在s中是连续的，其值对于s的小值等于希尔伯特-塞缪尔重数，对于s的大值等于希尔伯特-昆兹重数。我们证明了它有一个结合性公式，推广了Hilbert-Samuel和Hilbert-Kunz多重性的结合性公式。我们还定义了一个家庭的封闭，使如果两个理想有相同的s-封闭，那么他们有相同的s-多重性，并在温和的条件下，反之亦然。我们将复曲面环中单项理想的s-重数描述为实空间中的一定体积
英文摘要：
We define a function, called s-multiplicity, that interpolates between Hilbert-Samuel multiplicity and Hilbert-Kunz multiplicity by comparing powers of ideals to the Frobenius powers of ideals. The function is continuous in s, and its value is equal to Hilbert-Samuel multiplicity for small values of s and is equal to Hilbert-Kunz multiplicity for large values of s. We prove that it has an Associativity Formula generalizing the Associativity Formulas for Hilbert-Samuel and Hilbert-Kunz multiplicity. We also define a family of closures such that if two ideals have the same s-closure then they have the same s-multiplicity, and the converse holds under mild conditions. We describe the s-multiplicity of monomial ideals in toric rings as a certain volume in real space
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