On time graphs. - Hiroshi Maehara (Discret. Math., 1980)

Space graphs and sphericity. - Hiroshi Maehara (Discret. Appl. Math., 1984)

On the sphericity for the join of many graphs. - Hiroshi Maehara (Discret. Math., 1984)

A digraph represented by a family of boxes or spheres. - Hiroshi Maehara (J. Graph Theory, 1984)

Contact patterns of equal nonoverlapping spheres. - Hiroshi Maehara (Graphs Comb., 1985)

On the sphericity of the graphs of semiregular polyhedra. - Hiroshi Maehara (Discret. Math., 1986)

Metric transforms of finite spaces and connected graphs. - Hiroshi Maehara (Discret. Math., 1986)

Embedding the n-cube in Lower Dimensions. - Peter Frankl; Hiroshi Maehara (Eur. J. Comb., 1986)

Sphericity exceeds cubicity for almost all complete bipartite graphs. - Hiroshi Maehara (J. Comb. Theory B, 1986)

Open-interval graphs versus closed-interval graphs. - Peter Frankl; Hiroshi Maehara (Discret. Math., 1987)

On the number of induced subgraphs of a random graph. - Hiroshi Maehara (Discret. Math., 1987)

On the Contact Dimensions of Graphs. - Peter Frankl; Hiroshi Maehara (Discret. Comput. Geom., 1988)

On the euclidean dimension of a complete multipartite graph. - Hiroshi Maehara (Discret. Math., 1988)

Embedding of trees in euclidean spaces. - Hiroshi Maehara; Jan Reiterman; Vojtech Rödl; Edita Sinajová (Graphs Comb., 1988)

The Johnson-Lindenstrauss lemma and the sphericity of some graphs. - Peter Frankl; Hiroshi Maehara (J. Comb. Theory B, 1988)

Note on Induced Subgraphs of the Unit Distance Graph En. - Hiroshi Maehara (Discret. Comput. Geom., 1989)

Helly-Type Theorems for Spheres. - Hiroshi Maehara (Discret. Comput. Geom., 1989)

Simplices with Given 2-Face Areas. - Peter Frankl; Hiroshi Maehara (Eur. J. Comb., 1990)

On the dimension to represent a graph by a unit distance graph. - Hiroshi Maehara; Vojtech Rödl (Graphs Comb., 1990)

Distances in a rigid unit-distance graph in the plane. - Hiroshi Maehara (Discret. Appl. Math., 1991)

Dispersed Points and Geometric Embedding of Complete Bipartite Graphs. - Hiroshi Maehara (Discret. Comput. Geom., 1991)

On Graver's Conjecture Concerning the Rigidity Problem of Graphs. - Hiroshi Maehara (Discret. Comput. Geom., 1991)

The intersection graph of random sets. - Hiroshi Maehara (Discret. Math., 1991)

Extending a flexible unit-bar framework to a rigid one. - Hiroshi Maehara (Discret. Math., 1992)

Reflecting a triangle in the plane. - Imre Bárány; Peter Frankl; Hiroshi Maehara (Graphs Comb., 1993)

Metric extensions and the L1 hierarchy. - David Avis; Hiroshi Maehara (Discret. Math., 1994)

Projecting a Simplex onto Another One. - Michel Deza; Hiroshi Maehara (Eur. J. Comb., 1994)

A few applications of negative- type inequalities. - Michel Deza; Hiroshi Maehara (Graphs Comb., 1994)

Embedding a Polytope in a Lattice. - Hiroshi Maehara (Discret. Comput. Geom., 1995)

On the section of a convex polyhedron. - Peter Frankl; Hiroshi Maehara; Junichiro Nakashima (Discret. Math., 1995)

On sqrt(Q)-Distances. - Hiroshi Maehara (Eur. J. Comb., 1996)

A spatial unit-bar-framework which is rigid and triangle-free. - Hiroshi Maehara; Norihide Tokushige (Graphs Comb., 1996)

Every Graph Is an Integral Distance Graph in the Plane. - Hiroshi Maehara; Katsuhiro Ota; Norihide Tokushige (J. Comb. Theory A, 1997)

On Soddy's Hexlet and a Linked 4-Pair. - Hiroshi Maehara; Ai Oshiro (JCDCG, 1998)

Embedding a set of rational points in lower dimensions. - Hiroshi Maehara (Discret. Math., 1998)

Is There a Circle that Passes Through a Given Number of Lattice Points? - Hiroshi Maehara; Makoto Matsumoto (Eur. J. Comb., 1998)

Configuration Spaces of Pentagonal Frameworks. - Hiroshi Maehara (Eur. J. Comb., 1999)

On Knotted Necklaces of Pearls. - Hiroshi Maehara; Ai Oshiro (Eur. J. Comb., 1999)

On the Number of Acute Triangles in a Straight-Line Embedding of a Maximal Planar Graph. - Atsushi Kaneko; Hiroshi Maehara; Mamoru Watanabe (J. Comb. Theory B, 1999)

On Acute Triangulations of Quadrilaterals. - Hiroshi Maehara (JCDCG, 2000)

Subdividing a Graph Toward a Unit-distance Graph in the Plane. - Severino Villanueva Gervacio; Hiroshi Maehara (Eur. J. Comb., 2000)

Piercing Balls Sitting on a Table by a Vertical Line. - Hiroshi Maehara; Ai Oshiro (Eur. J. Comb., 2000)

Cutting a Set of Disks by a Line with Leaving Many Intact Disks in Both Sides. - Hiroshi Maehara; Ai Oshiro (J. Comb. Theory A, 2000)

Can a convex polyhedron have a developable face-cycle? - Hiroshi Maehara (Theor. Comput. Sci., 2000)

A Pair in a Crowd of Unit Balls. - Kiyoshi Hosono; Hiroshi Maehara; Katsumi Matsuda (Eur. J. Comb., 2001)

Cutting a Bunch of Grapes by a Plane. - Hiroshi Maehara; Ai Oshiro (Eur. J. Comb., 2001)

Piercing a Set of Disjoint Balls by a Line. - Hiroshi Maehara; Ai Oshiro (J. Comb. Theory A, 2001)

On the Total Edge-Length of a Tetrahedron. - Hiroshi Maehara (Am. Math. Mon., 2001)

When does a planar bipartite framework admit a continuous deformation? - Hiroshi Maehara; Norihide Tokushige (Theor. Comput. Sci., 2001)

Observing an Angle from Various Viewpoints. - Yoichi Maeda; Hiroshi Maehara (JCDCG, 2002)

Acute Triangulations of Polygons. - Hiroshi Maehara (Eur. J. Comb., 2002)

The Length of the Shortest Edge of a Graph on a Sphere. - Hiroshi Maehara (Eur. J. Comb., 2002)

An Inequality on the Size of a Set in a Cartesian Product. - Hiroshi Maehara (Eur. J. Comb., 2002)

Arranging Solid Balls to Represent a Graph. - Hiroshi Maehara; Ai Oshiro (Graphs Comb., 2002)

On a condition for the union of spherical caps to be connected. - Hiroshi Maehara (J. Comb. Theory A, 2003)

Plane graphs with straight edges whose bounded faces are acute triangles. - Hiroshi Maehara (J. Comb. Theory B, 2003)

On the intersection graph of random caps on a sphere. - Hiroshi Maehara (Eur. J. Comb., 2004)

On the Perimeter of a Triangle in a Minkowski Plane. - Hiroshi Maehara; Tudor Zamfirescu (Am. Math. Mon., 2005)

Partial order on a family of k-subsets of a linearly ordered set. - Severino Villanueva Gervacio; Hiroshi Maehara (Discret. Math., 2006)

The problem of thirteen spheres - a proof for undergraduates. - Hiroshi Maehara (Eur. J. Comb., 2007)

On Configurations of Solid Balls in 3-Space: Chromatic Numbers and Knotted Cycles. - Hiroshi Maehara (Graphs Comb., 2007)

Planar unit-distance graphs having planar unit-distance complement. - Severino Villanueva Gervacio; Yvette Fajardo-Lim; Hiroshi Maehara (Discret. Math., 2008)

From line-systems to sphere-systems - Schläfli's double six, Lie's line-sphere transformation, and Grace's theorem. - Hiroshi Maehara; Norihide Tokushige (Eur. J. Comb., 2009)

Large regular simplices contained in a hypercube. - Hiroshi Maehara; Imre Z. Ruzsa; Norihide Tokushige (Period. Math. Hung., 2009)

On the Diameter of a Circle to Hold a Cube. - Hiroshi Maehara (CGGA, 2010)

Problem section. - Victor Alexandrov 001; Hiroshi Maehara; Anatoliy D. Milka; Idzhad Kh. Sabitov; Jean-Marc Schlenker; Brigitte Servatius; Herman Servatius (Eur. J. Comb., 2010)

On a sphere that passes through n lattice points. - Hiroshi Maehara (Eur. J. Comb., 2010)

Reversing a polyhedral surface by origami-deformation. - Hiroshi Maehara (Eur. J. Comb., 2010)

On a proper acute triangulation of a polyhedral surface. - Hiroshi Maehara (Discret. Math., 2011)

A Note on Lights-Out-Puzzle: Parity-State Graphs. - Severino Villanueva Gervacio; Hiroshi Maehara (Graphs Comb., 2011)

Lattice Points on Similar Figures and Conics. - Takayasu Kuwata; Hiroshi Maehara (Graphs Comb., 2011)

Classification of the Congruent Embeddings of a Tetrahedron into a Triangular Prism. - Hiroshi Maehara; Norihide Tokushige (Graphs Comb., 2011)

Tetrahedra passing through a triangular hole, and tetrahedra fixed by a planar frame. - Imre Bárány; Hiroshi Maehara; Norihide Tokushige (Comput. Geom., 2012)

Generating Polygons with Triangles. - Takayasu Kuwata; Hiroshi Maehara (JCDCGG, 2013)

Euclidean embeddings of finite metric spaces. - Hiroshi Maehara (Discret. Math., 2013)

Circle lattice point problem, revisited. - Hiroshi Maehara (Discret. Math., 2015)

Another exploration problem. - Takayasu Kuwata; Hiroshi Maehara (Discret. Math., 2016)

Separating n-point sets from quasi-finite ones via polyhedral surfaces. - Hiroshi Maehara; Horst Martini (Eur. J. Comb., 2017)

On Lexell's Theorem. - Hiroshi Maehara; Horst Martini (Am. Math. Mon., 2017)

On the Structure of Discrete Metric Spaces Isometric to Circles. - Andreas W. M. Dress; Hiroshi Maehara; Sabrina Xing Mei Pang; Zhenbing Zeng (AAIM, 2019)

Planar lattices and equilateral polygons. - Hiroshi Maehara (Eur. J. Comb., 2019)

Tangent Spheres of Tetrahedra and a Theorem of Grace. - Hiroshi Maehara; Horst Martini (Am. Math. Mon., 2020)

Kissing Numbers for Balls with Varying Radii. - Hiroshi Maehara; Horst Martini (Graphs Comb., 2022)