Publications

Difference of Facial Achromatic Numbers between Two Triangular Embeddings of a Graph (with Y. Ohno),
Theory and Applications of Graphs: Vol. 10: Iss. 2 (2023),  Article 6.

Characterization of (m, n)-linked planar graphs (with S. Maezawa),
Graph and Combinatorics, 38 Article number: 131 (2022). 

Directed embeddings of 2-regular diplanar digraphs on surfaces of low Euler genus,
Australasian Journal of Combinatorics, 82 (2022), 256-267.

Proper colorings of plane quadrangulations without rainbow faces (with K. Ozeki, T. Yamaguchi),
Graph and Combinatorics, 37 (2021), 1873-1890.

Embeddings of a graph into a surface with different weak chromatic numbers,  (with K. Noguchi),
Graph and Combinatorics 37 (2021), 435-444 .

Recursive formulas for beans functions of graphs (with S. Negami),
Theory and Applications of Graphs: Vol 7 Iss. 1 (2020), Article 3.

Embeddings of 3-connected 3-regular planar graphs on surfaces of non-negative Euler characteristic,
Discrete Mathematics and Theoretical Computer Science, Vol. 21 no. 4 (2019).

Gaps of beans functions of graphs over intervals bounded by unit fractions (with S. Negami),
Yokohama Mathematical Journal, 64 (2018), pp.131–141.

The maximum values of beans functions of graphs over intervals,
Journal of Nonlinear and Convex Analysis, 19 (2018), pp.1771–1774.

グラフの閉曲面への埋め込み，
オペレーションズ・リサーチ：経営の科学，68, pp. 563–570, 2023.

河村 康平, 酒井 浩之, 永並 健吾, 高野 海斗, 中川 慧,
解釈性を考慮した統合報告書の自動評価,
人工知能学会論文誌, Vol. 39, no. 4, p. FIN23-E_1-14, 2024.

根岸 龍, 酒井 浩之, 永並 健吾,
株価と決算短信を用いた株式動向を表現する文の自動生成,
知能と情報(日本知能情報ファジィ学会誌), vol. 35, no. 3, pp.693-699, 2023.

今井 康太, 酒井 浩之, 永並 健吾, 稲垣 真太郎,
債券市場における金融極性辞書の自動構築,
知能と情報(日本知能情報ファジィ学会誌), vol. 34, no. 4, pp.673-682, 2022.

Surface immersions and graphs on surfaces (with A. Nakamoto and K. Ozeki), preprint

Null colorings and anti-rainbow colorings of triangulations on closed surfaces  (with M. Kashima and Y. Ohno), preprint