2018
DOI: 10.1016/j.jalgebra.2018.08.028
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An elementary computation of the F-pure threshold of an elliptic curve

Abstract: We compute the F -pure threshold of a degree three homogeneous polynomial in three variables with an isolated singularity. The computation uses elementary methods to prove a known result of Bhatt and Singh (from [2]).

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Cited by 3 publications
(5 citation statements)
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“…(see [Pag18a] for more details.) When the indeterminant λ is understood from the context we omit it and write H{n}.…”
Section: Roots Of Deuring Polynomials In Prime Characteristicmentioning
confidence: 99%
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“…(see [Pag18a] for more details.) When the indeterminant λ is understood from the context we omit it and write H{n}.…”
Section: Roots Of Deuring Polynomials In Prime Characteristicmentioning
confidence: 99%
“…It is intriguing that the value of the F -pure threshold depends on whether the cross-ratio satisfies some (Möbius transformation of) Legendre polynomial. The technique we use in the proof relies on the properties of the Deuring Polynomials as presented in [Pag18a]. While some of these properties can be deduced from known facts about Legendre polynomials, we include straightforward algebraic proofs (or cite some from [Pag18a]) in order to be self-contained.…”
Section: Introductionmentioning
confidence: 99%
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“…This number is usually very difficult to compute. However, there are formulas for diagonal [Her15], binomial [Her14], Calabi-Yau [BS15], Elliptic Curves [BS15,Pag18], and quasi-homogeneous one dimensional hypersurfaces [HNnBWZ16].…”
Section: Introductionmentioning
confidence: 99%