A. Munemasa

activity

20012026

most citedEquiangular lines in Euclidean spaces

96 citations · 292 across the 62 of their papers we have counts for

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Showing 2019Show all

4 papers · 1 filter

math.CO2019

Primitive weakly distance-regular circulant digraphs

Akihiro Munemasa, Kaishun Wang, Yuefeng Yang

We classify certain non-symmetric commutative association schemes. As an application, we determine all the primitive weakly distance-regular circulant digraphs.

math.CO2019

New Strongly Regular Graphs from Finite Geometries via Switching

Ferdinand Ihringer, Akihiro Munemasa

We show that the strongly regular graph on non-isotropic points of one type of the polar spaces of type $U (n, 2)$ , $O (n, 3)$ , $O (n, 5)$ , $O^{+} (n, 3)$ , and $O^{-} (n, 3)$ are not determ…

math.CO2019★ 2 cited

$D$ -Magic and Antimagic Labelings of Hypercubes

Palton Anuwiksa, Akihiro Munemasa, Rinovia Simanjuntak

For a set of distances $D$ , a graph $G$ of order $n$ is said to be $D -$ magic if there exists a bijection $f : V \to {1, 2, \dots, n}$ and a constant $k$ such that for any ve…

math.CO2019

Krein parameters of fiber-commutative coherent configurations

Keiji Ito, Akihiro Munemasa

For fiber-commutative coherent configurations, we show that Krein parameters can be defined essentially uniquely. As a consequence, the general Krein condition reduces to positive…

Primitive weakly distance-regular circulant digraphs

New Strongly Regular Graphs from Finite Geometries via Switching

D-Magic and Antimagic Labelings of Hypercubes

Krein parameters of fiber-commutative coherent configurations

$D$ -Magic and Antimagic Labelings of Hypercubes