13 citations · 61 across the 31 of their papers we have counts for
31 papers
Cyclotomic construction of -fold near-factorizations of cyclic groups
Shuxing Li, Koji Momihara
The study of near-factorizations of finite groups dates back to the 1950s. Recently, this topic has attracted renewed attention, and the concept has been extended to -fold near-…
Hadamard matrices related to a certain series of ternary self-dual codes
Makoto Araya, Masaaki Harada, Koji Momihara
In 2013, Nebe and Villar gave a series of ternary self-dual codes of length for a prime congruent to modulo . As a consequence, the third ternary extremal self-…
Cyclic arcs of Singer type and strongly regular Cayley graphs over finite fields
Koji Momihara, Qing Xiang
In \cite{M18}, the first author gave a construction of strongly regular Cayley graphs on the additive group of finite fields by using three-valued Gauss periods. In particular, tog…
Powers of Gauss sums in quadratic fields
Koji Momihara
In the past two decades, many researchers have studied {\it index } Gauss sums, where the group generated by the characteristic of the underling finite field is of index …
Pure Gauss sums and skew Hadamard difference sets
Koji Momihara
Chowla~(1962), McEliece~(1974), Evans~(1977, 1981) and Aoki~(1997, 2004, 2012) studied Gauss sums, some integral powers of which are in the field of rational numbers. Such Gauss su…
Cameron-Liebler Line Classes with parameter
Tao Feng, Koji Momihara, Morgan Rodgers +2
Cameron-Liebler line classes were introduced in \cite{CL}, and motivated by a question about orbits of collineation groups of $\PG(3,q)$. These line classes have appeared in differ…