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- Béla Bollobás, Chie Nara, Shun-ichi Tachibana
- Discrete Mathematics
- 1986

- Jin-ichi Itoh, Chie Nara, Costin Vîlcu
- EGC
- 2011

- Nikolai P. Dolbilin, Jin-ichi Itoh, Chie Nara
- CGGA
- 2010

- Zachary Abel, Erik D. Demaine, +4 authors Joseph O'Rourke
- Symposium on Computational Geometry
- 2014

We prove that a surprisingly simple algorithm folds the surface of every convex polyhedron, in any dimension, into a flat folding by a continuous motion, while preserving intrinsic distances and avoiding crossings. The flattening respects the straight-skeleton gluing, meaning that points of the polyhedron touched by a common ball inside the polyhedron come… (More)

- Jin-ichi Itoh, Chie Nara
- CGGA
- 2010

- Chie Nara, Toshinori Sakai, Jorge Urrutia
- JCDCG
- 2002

A geometric graph G is a graph whose vertex set is a set Pn of n points on the plane in general position, and whose edges are straight line segments (which may cross) joining pairs of vertices of G. We say that G contains a convex r-gon if its vertex and edge sets contain, respectively, the vertices and edges of a convex polygon with r vertices. In this… (More)

- Jin-ichi Itoh, Chie Nara
- JCDCGG
- 2013

- Chie Nara, Shun-ichi Tachibana
- Discrete Mathematics
- 1983

- Midori Kobayashi, Gisaku Nakamura, Chie Nara
- Australasian J. Combinatorics
- 2003

We give a construction of a uniform covering of 2-paths with 5-paths in Kn for all even n ≥ 6, i.e., we construct a set S of 5-paths in Kn having the property that each 2-path in Kn lies in exactly one 5-path in S for all even n ≥ 6.

- Midori Kobayashi, Gisaku Nakamura, Chie Nara
- Discrete Mathematics
- 2005