On the existence of 𝐹-thresholds and related limits

A De Stefani, L Núñez-Betancourt, F Pérez - Transactions of the American …, 2018 - ams.org
We show the existence of $ F $-thresholds in full generality. In addition, we study properties
of standard graded algebras over a field for which $ F $-pure threshold and $ F $-threshold …

Frobenius methods in combinatorics

A De Stefani, J Montaño… - Sao Paulo Journal of …, 2023 - Springer
We survey results produced from the interaction between methods in prime characteristic
and combinatorial commutative algebra. We showcase results for edge ideals, toric …

[PDF][PDF] Gorenstein binomial edge ideals

R González-Martínez - arXiv preprint arXiv:2102.11188, 2021 - arxiv.org
arXiv:2102.11188v1 [math.AC] 22 Feb 2021 Page 1 arXiv:2102.11188v1 [math.AC] 22 Feb
2021 GORENSTEIN BINOMIAL EDGE IDEALS RENÉ GONZÁLEZ-MARTÍNEZ Abstract. We …

Boundary local integrability of rational functions in two variables

G Knese - arXiv preprint arXiv:2404.05042, 2024 - arxiv.org
Motivated by studying boundary singularities of rational functions in two variables that are
analytic on a domain, we investigate local integrability on $\mathbb {R}^ 2$ near $(0, 0) $ of …

Lower bounds on the F-pure threshold and extremal singularities

Z Kadyrsizova, J Kenkel, J Page, J Singh… - Transactions of the …, 2022 - ams.org
We prove that if $ f $ is a reduced homogeneous polynomial of degree $ d $, then its $ F $-
pure threshold at the unique homogeneous maximal ideal is at least $\frac {1}{d-1} $. We …

-Purity versus log canonicity for polynomials

DJ Hernández - Nagoya Mathematical Journal, 2016 - cambridge.org
F-PURITY VERSUS LOG CANONICITY FOR POLYNOMIALS Page 1 Nagoya Math. J., 224(1)
(2016), 10–36 DOI 10.1017/nmj.2016.14 F-PURITY VERSUS LOG CANONICITY FOR …

Values of the F‐pure threshold for homogeneous polynomials

KE Smith, A Vraciu - Journal of the London Mathematical …, 2023 - Wiley Online Library
We find a formula, in terms of n, dn,d, and pp, for the value of the FF‐pure threshold for the
generic homogeneous polynomial of degree dd in nn variables over an algebraically closed …

F-signature functions of diagonal hypersurfaces

A Caminata, S Shideler, K Tucker, F Zerman - arXiv preprint arXiv …, 2024 - arxiv.org
Let $ f $ be a diagonal hypersurface in $ A_p=\mathbb {F} _p [[x_1,\dots, x_n]] $. We study
the behavior of the function $\phi_ {f, p}({a}/{p^ e})= p^{-ne}\dim_ {\mathbb {F} _p}\big …

F-invariants of Stanley-Reisner rings

W Badilla-Céspedes - Journal of Pure and Applied Algebra, 2021 - Elsevier
F-invariants of Stanley-Reisner rings - ScienceDirect Skip to main contentSkip to article Elsevier
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[HTML][HTML] Finiteness of leaps in the sense of Hasse-Schmidt of unibranch curves in positive characteristic

LN Macarro, AJ Reguera, MPT Hernández - Advances in Mathematics, 2024 - Elsevier
We prove that the set of leaps of the chain of m-integrable derivations of a curve X over a
perfect field with geometrically unibranch singularities is finite. This result is a consequence …