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Originalsprache | Englisch |
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Publikationsstatus | Elektronisch veröffentlicht (E-Pub) - 14 Apr. 2023 |
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2023.
Publikation: Arbeitspapier/Preprint › Preprint
}
TY - UNPB
T1 - Bounding the number of graph refinements for Brill-Noether existence
AU - Christ, Karl
AU - Ma, Qixiao
N1 - 9 pages, 2 figures
PY - 2023/4/14
Y1 - 2023/4/14
N2 - Let \(G\) be a finite graph of genus \(g\). Let \(d\) and \(r\) be non-negative integers such that the Brill-Noether number is non-negative. It is known that for some \(k\) sufficiently large, the \(k\)-th homothetic refinement \(G^{(k)}\) of \(G\) admits a divisor of degree \(d\) and rank at least \(r\). We use results from algebraic geometry to give an upper bound for \(k\) in terms of \(g,d,\) and \(r\).
AB - Let \(G\) be a finite graph of genus \(g\). Let \(d\) and \(r\) be non-negative integers such that the Brill-Noether number is non-negative. It is known that for some \(k\) sufficiently large, the \(k\)-th homothetic refinement \(G^{(k)}\) of \(G\) admits a divisor of degree \(d\) and rank at least \(r\). We use results from algebraic geometry to give an upper bound for \(k\) in terms of \(g,d,\) and \(r\).
KW - math.AG
KW - math.CO
KW - 05C99 (Primary), 05C57, 14H51 (Secondary)
M3 - Preprint
BT - Bounding the number of graph refinements for Brill-Noether existence
ER -