Shifted symmetric delta-vectors of convex polytopes. - Akihiro Higashitani (Discret. Math., 2010)

Smooth Fano Polytopes Arising from Finite Partially Ordered Sets. - Takayuki Hibi; Akihiro Higashitani (Discret. Comput. Geom., 2011)

Ehrhart polynomials of convex polytopes with small volumes. - Takayuki Hibi; Akihiro Higashitani; Yuuki Nagazawa (Eur. J. Comb., 2011)

Counterexamples of the Conjecture on Roots of Ehrhart Polynomials. - Akihiro Higashitani (Discret. Comput. Geom., 2012)

Hermite normal forms and δ-vectors. - Takayuki Hibi; Akihiro Higashitani; Nan Li (J. Comb. Theory A, 2012)

Integer Decomposition Property of Dilated Polytopes. - David A. Cox 001; Christian Haase 001; Takayuki Hibi; Akihiro Higashitani (Electron. J. Comb., 2014)

Non-normal Very Ample Polytopes and their Holes. - Akihiro Higashitani (Electron. J. Comb., 2014)

Ehrhart Polynomials of Integral Simplices With Prime Volumes. - Akihiro Higashitani (Integers, 2014)

Existence of regular unimodular triangulations of dilated empty simplices. - Takayuki Hibi; Akihiro Higashitani; Koutarou Yoshida (Eur. J. Comb., 2018)

Ehrhart Polynomial Roots of Reflexive Polytopes. - Gábor Hegedüs; Akihiro Higashitani; Alexander M. Kasprzyk (Electron. J. Comb., 2019)

Permutations with small maximal k-consecutive sums. - Akihiro Higashitani; Kazuki Kurimoto (Discret. Math., 2019)

Ehrhart Polynomials with Negative Coefficients. - Takayuki Hibi; Akihiro Higashitani; Akiyoshi Tsuchiya; Koutarou Yoshida (Graphs Comb., 2019)

The Root Distributions of Ehrhart Polynomials of Free Sums of Reflexive Polytopes. - Masahiro Hachimori; Akihiro Higashitani; Yumi Yamada (Electron. J. Comb., 2022)

The ratio of the numbers of odd and even cycles in outerplanar graphs. - Akihiro Higashitani; Naoki Matsumoto (Discret. Math., 2023)

The Distribution of Roots of Ehrhart Polynomials for the Dual of Root Polytopes of Type C. - Akihiro Higashitani; Yumi Yamada (Graphs Comb., 2023)

Kempe equivalence of almost bipartite graphs. - Akihiro Higashitani; Naoki Matsumoto (Australas. J Comb., 2023)

Feedback game on 3-chromatic Eulerian triangulations of surfaces. - Akihiro Higashitani; Kazuki Kurimoto; Naoki Matsumoto (Discret. Appl. Math., 2024)

Ehrhart quasi-polynomials and parallel translations. - Akihiro Higashitani; Satoshi Murai; Masahiko Yoshinaga (Comb. Theory, 2025)