State Transfer on Unitary Cayley Graphs and Quadratic Unitary Cayley Graphs

Fuente: arXiv
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Autori principali: Kalita, Akash, Bhattacharjya, Bikash
Natura: Preprint
Pubblicazione: 2025
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author Kalita, Akash
Bhattacharjya, Bikash
author_facet Kalita, Akash
Bhattacharjya, Bikash
contents The unitary Cayley graph, denoted $X_n$, is the graph with vertex set ${\mathbb{Z}}_n$ such that two distinct vertices $a$ and $b$ are adjacent if $a-b=u$ for some $u$ with $1 \leq u \leq n-1$ and $\gcd(u,n) = 1$. The quadratic unitary Cayley graph, denoted $G_n$, is the graph with vertex set ${\mathbb{Z}}_n$ such that two distinct vertices $a$ and $b$ are adjacent if $a-b=u^2$ or $a-b=-u^2$ for some $u$ with $1 \leq u \leq n-1$ and $\gcd(u,n) = 1$. In this paper, we classify all $X_n$ admitting pretty good fractional. We also classify all $X_n$ that admit fractional revival. It turns out that $X_n$ admits fractional revival if and only if it admits pretty good fractional revival. Further, we classify all $G_n$ admitting periodicity. As a consequence, we obtain all $G_n$ admitting perfect state transfer. We also classify $G_n$ admitting pretty good state transfer, pretty good fractional revival and fractional revival.
format Preprint
id arxiv_https___arxiv_org_abs_2508_18068
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle State Transfer on Unitary Cayley Graphs and Quadratic Unitary Cayley Graphs
Kalita, Akash
Bhattacharjya, Bikash
Combinatorics
11A07, 15A16, 05C50, 81P45
The unitary Cayley graph, denoted $X_n$, is the graph with vertex set ${\mathbb{Z}}_n$ such that two distinct vertices $a$ and $b$ are adjacent if $a-b=u$ for some $u$ with $1 \leq u \leq n-1$ and $\gcd(u,n) = 1$. The quadratic unitary Cayley graph, denoted $G_n$, is the graph with vertex set ${\mathbb{Z}}_n$ such that two distinct vertices $a$ and $b$ are adjacent if $a-b=u^2$ or $a-b=-u^2$ for some $u$ with $1 \leq u \leq n-1$ and $\gcd(u,n) = 1$. In this paper, we classify all $X_n$ admitting pretty good fractional. We also classify all $X_n$ that admit fractional revival. It turns out that $X_n$ admits fractional revival if and only if it admits pretty good fractional revival. Further, we classify all $G_n$ admitting periodicity. As a consequence, we obtain all $G_n$ admitting perfect state transfer. We also classify $G_n$ admitting pretty good state transfer, pretty good fractional revival and fractional revival.
title State Transfer on Unitary Cayley Graphs and Quadratic Unitary Cayley Graphs
topic Combinatorics
11A07, 15A16, 05C50, 81P45
url https://arxiv.org/abs/2508.18068