Bounds and Constructions for Optimal Constant Weight Conflict-Avoiding Codes. - Koji Momihara; Meinard Müller; Junya Satoh; Masakazu Jimbo (ISIT, 2007)

Necessary and sufficient conditions for tight equi-difference conflict-avoiding codes of weight three. - Koji Momihara (Des. Codes Cryptogr., 2007)

Constant Weight Conflict-Avoiding Codes. - Koji Momihara; Meinard Müller; Junya Satoh; Masakazu Jimbo (SIAM J. Discret. Math., 2007)

Strong difference families, difference covers, and their applications for relative difference families. - Koji Momihara (Des. Codes Cryptogr., 2009)

Perfect difference systems of sets and Jacobi sums. - Ryoh Fuji-Hara; Koji Momihara; Mieko Yamada (Discret. Math., 2009)

On cyclic 2(k-1)-support (n, k)k-1 difference families. - Koji Momihara (Finite Fields Their Appl., 2009)

Bounds and Constructions of Optimal (n, 4, 2, 1) Optical Orthogonal Codes. - Koji Momihara; Marco Buratti (IEEE Trans. Inf. Theory, 2009)

New results on optimal (v, 4, 2, 1) optical orthogonal codes. - Marco Buratti; Koji Momihara; Anita Pasotti (Des. Codes Cryptogr., 2011)

New optimal optical orthogonal codes by restrictions to subgroups. - Koji Momihara (Finite Fields Their Appl., 2011)

A decomposition of the 2-design formed by the planes in AG(2n, 3). - Koji Momihara; Miwako Mishima; Masakazu Jimbo (Finite Fields Their Appl., 2012)

Inequivalence of Skew Hadamard Difference Sets and Triple Intersection Numbers Modulo a Prime. - Koji Momihara (Electron. J. Comb., 2013)

Strongly regular Cayley graphs, skew Hadamard difference sets, and rationality of relative Gauss sums. - Koji Momihara (Eur. J. Comb., 2013)

Strongly regular Cayley graphs and rationality of relative Gauss sums. - Koji Momihara (Electron. Notes Discret. Math., 2013)

Three-class association schemes from cyclotomy. - Tao Feng 001; Koji Momihara (J. Comb. Theory A, 2013)

Skew Hadamard Difference Sets from Cyclotomic Strongly Regular Graphs. - Koji Momihara (SIAM J. Discret. Math., 2013)

Evaluation of the Weight Distribution of a Class of Cyclic Codes Based on Index 2 Gauss Sums. - Tao Feng 001; Koji Momihara (IEEE Trans. Inf. Theory, 2013)

Unified combinatorial constructions of optimal optical orthogonal codes. - Cuiling Fan; Koji Momihara (Adv. Math. Commun., 2014)

Divisible difference families from Galois rings GR(4, n) and Hadamard matrices. - Koji Momihara; Mieko Yamada (Des. Codes Cryptogr., 2014)

Certain strongly regular Cayley graphs on 𝔽22(2s+1) from cyclotomy. - Koji Momihara (Finite Fields Their Appl., 2014)

Lifting constructions of strongly regular Cayley graphs. - Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2014)

Constructions of strongly regular Cayley graphs and skew Hadamard difference sets from cyclotomic classes. - Tao Feng 001; Koji Momihara; Qing Xiang (Comb., 2015)

New strongly regular decompositions of the complete graphs with prime power vertices. - Koji Momihara; Yu Okumura (Finite Fields Their Appl., 2015)

Cameron-Liebler line classes with parameter x=(q2-1)/2. - Tao Feng 001; Koji Momihara; Qing Xiang (J. Comb. Theory A, 2015)

A family of m-ovoids of parabolic quadrics. - Tao Feng 001; Koji Momihara; Qing Xiang (J. Comb. Theory A, 2016)

Disjoint Difference Families from Galois Rings. - Koji Momihara (Electron. J. Comb., 2017)

A new series of optimal tight conflict-avoiding codes of weight 3. - Miwako Mishima; Koji Momihara (Discret. Math., 2017)

Conference Matrices With Maximum Excess and Two-intersection Sets. - Koji Momihara; Sho Suda (Integers, 2017)

Distance Sets on Circles. - Koji Momihara; Masashi Shinohara (Am. Math. Mon., 2017)

A New Infinite Family of Hemisystems of the Hermitian Surface. - John Bamberg; Melissa Lee; Koji Momihara; Qing Xiang (Comb., 2018)

Construction of strongly regular Cayley graphs based on three-valued Gauss periods. - Koji Momihara (Eur. J. Comb., 2018)

Strongly regular Cayley graphs from partitions of subdifference sets of the Singer difference sets. - Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2018)

Constructions of skew Hadamard difference families. - Koji Momihara; Qing Xiang (Eur. J. Comb., 2019)

A Recursive Construction for Skew Hadamard Difference Sets. - Koji Momihara (Electron. J. Comb., 2020)

Generalized constructions of Menon-Hadamard difference sets. - Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2020)

New constructions of Hadamard matrices. - Ka Hin Leung; Koji Momihara (J. Comb. Theory A, 2020)

A new family of Hadamard matrices of order 4(2q2+1). - Ka Hin Leung; Koji Momihara; Qing Xiang (Discret. Math., 2021)

New constructions of strongly regular Cayley graphs on abelian non p-groups. - Koji Momihara (J. Comb. Theory A, 2021)

Pure Gauss sums and skew Hadamard difference sets. - Koji Momihara (Finite Fields Their Appl., 2022)

Cyclic arcs of Singer type and strongly regular Cayley graphs over finite fields. - Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2022)

Hadamard matrices related to a certain series of ternary self-dual codes. - Makoto Araya; Masaaki Harada; Koji Momihara (Des. Codes Cryptogr., 2023)

Difference sets in pseudocyclic association schemes. - Hiroki Kajiura; Koji Momihara (Discret. Math., 2023)

Strongly Regular Graphs from Pseudocyclic Association Schemes. - Koji Momihara; Sho Suda (Graphs Comb., 2024)

Partial difference sets from unions of cyclotomic classes. - Ka Hin Leung; Koji Momihara; Qing Xiang (Finite Fields Their Appl., 2025)