Yuka Yamaguchi

activity

20162026

most citedInteger circulant determinants of order 16

17 citations · 39 across the 18 of their papers we have counts for

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Showing 2023Show all

4 papers · 1 filter

math.NT2023

Wolstenholme primes and group determinants of cyclic groups

Cid Reyes-Bustos, Naoya Yamaguchi, Yuka Yamaguchi

A Wolstenholme prime is a prime number $p \geq 5$ that divides the numerator of the Bernoulli number $B_{p - 3}$ . A number of equivalent definitions for Wolstenholme primes are known…

math.NT2023

Integer group determinants for $C_{4} ⋊ C_{4}$

Yuka Yamaguchi, Naoya Yamaguchi

Let $C_{4}$ be the cyclic group of order $4$ . We determine all possible values of the integer group determinant of $C_{4} ⋊ C_{4}$ .

math.NT2023

Integer group determinants for $C_{2}^{2} ⋊ C_{4}$

Yuka Yamaguchi, Naoya Yamaguchi

For any positive integer $n$ , let $C_{n}$ be the cyclic group of order $n$ . We determine all possible values of the integer group determinant of ${\rm C}_{2}^{2} \rtimes C_{4…

math.ST2023

Inequality for the variance of an asymmetric loss

Naoya Yamaguchi, Yuka Yamaguchi, Maiya Hori

We assume that the forecast error follows a probability distribution which is symmetric and monotonically non-increasing on non-negative real numbers, and if there is a mismatch be…

Wolstenholme primes and group determinants of cyclic groups

Integer group determinants for C4​⋊C4​

Integer group determinants for C22​⋊C4​

Inequality for the variance of an asymmetric loss

Integer group determinants for $C_{4} ⋊ C_{4}$

Integer group determinants for $C_{2}^{2} ⋊ C_{4}$