Search Results for author: Nat Sothanaphan

Found 6 papers, 5 papers with code

Addendum to "Fuglede's conjecture fails in 4 dimensions over odd prime fields"

1 code implementation10 Oct 2019 Samuel Ferguson, Nat Sothanaphan

We describe computer programs accompanying our paper and show that running them suffices to verify Fuglede's conjecture in $\mathbb{Z}_2^5$ and $\mathbb{Z}_2^6$.

Classical Analysis and ODEs Discrete Mathematics Combinatorics

Riesz bases of exponentials and multi-tiling in finite abelian groups

1 code implementation9 Apr 2019 Sam Ferguson, Azita Mayeli, Nat Sothanaphan

As an application, we obtain new weak evidence in favor of the open problem by giving a sequence of subsets of finite abelian groups whose tightness quantities go to infinity in the limit.

Combinatorics Classical Analysis and ODEs Number Theory 43A70, 43A40 (Primary), 52C22, 11L07 (Secondary)

Fuglede's conjecture fails in 4 dimensions over odd prime fields

1 code implementation25 Jan 2019 Samuel Ferguson, Nat Sothanaphan

We show, however, that our method does not extend to $\mathbb{Z}_{p}^{3}$.

Number Theory Classical Analysis and ODEs 43A15, 43A40, 43A70, 43A75

1D Triple Bubble Problem with Log-Convex Density

1 code implementation22 May 2018 Nat Sothanaphan

We prove that for a symmetric, strictly log-convex density on the real line, there are four possible types of perimeter-minimizing triple bubbles.

Metric Geometry 49Q10

The Least-Area Tetrahedral Tile of Space

1 code implementation13 Sep 2017 Eliot Bongiovanni, Alejandro Diaz, Arjun Kakkar, Nat Sothanaphan

We determine the least-area unit-volume tetrahedral tile of Euclidean space, without the constraint of Gallagher et al. that the tiling uses only orientation-preserving images of the tile.

Metric Geometry

A Curved Brunn-Minkowski Inequality for the Symmetric Group

no code implementations2 Jun 2015 Weerachai Neeranartvong, Jonathan Novak, Nat Sothanaphan

In this paper, we construct an injection $A \times B \rightarrow M \times M$ from the product of any two nonempty subsets of the symmetric group into the square of their midpoint set, where the metric is that corresponding to the conjugacy class of transpositions.

Combinatorics Metric Geometry

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