Kei Nakamura

activity

20112017

most citedOn Isosystolic Inequalities for T^n, RP^n, and M^3

6 citations · 12 across the 6 of their papers we have counts for

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Showing 2017Show all

2 papers · 1 filter

math.GT2017★ 1 cited

The complexity of prime 3-manifolds and the first $Z_{/2 Z}$ -cohomology of small rank

Kei Nakamura

For a closed orientable connected 3-manifold $M$ , its complexity $T (M)$ is defined to be the minimal number of tetrahedra in its triangulations. Under the assumption t…

math.MG2017★ 1 cited

Geometry and Arithmetic of Crystallographic Sphere Packings

Alex Kontorovich, Kei Nakamura

We introduce the notion of a "crystallographic sphere packing," defined to be one whose limit set is that of a geometrically finite hyperbolic reflection group in one higher dimens…

The complexity of prime 3-manifolds and the first Z/2Z​-cohomology of small rank

Geometry and Arithmetic of Crystallographic Sphere Packings

The complexity of prime 3-manifolds and the first $Z_{/2 Z}$ -cohomology of small rank