Algebraic Geometry

Authors and titles for math.AG in Dec 2023, skipping first 75

[76]  arXiv:2312.07393 [pdf, other]

Title: The MatrixSchubert package for Macaulay2

Authors: Ayah Almousa, Sean Grate, Daoji Huang, Patricia Klein, Adam LaClair, Yuyuan Luo, Joseph McDonough

Comments: Accompanying the package MatrixSchubert, to be included in version 1.22 of the software system Macaulay2

Subjects: Algebraic Geometry (math.AG); Commutative Algebra (math.AC); Combinatorics (math.CO)

[77]  arXiv:2312.07450 [pdf, other]

Title: The Pfaffian Structure of CFN Phylogenetic Networks

Authors: Joseph Cummings, Elizabeth Gross, Benjamin Hollering, Samuel Martin, Ikenna Nometa

Comments: 26 pages, 3 figures, 3 tables

Subjects: Algebraic Geometry (math.AG); Populations and Evolution (q-bio.PE)

[78]  arXiv:2312.07542 [pdf, other]

Title: Line configurations and K3 surfaces

Authors: Elias Sink

Comments: 15 pages, 1 figure

Subjects: Algebraic Geometry (math.AG)

[79]  arXiv:2312.07554 [pdf, ps, other]

Title: The small $p$-adic Simpson correspondence in terms of moduli spaces

Authors: Johannes Anschütz, Ben Heuer, Arthur-César Le Bras

Comments: revised version of what used to be the second part of arXiv:2302.12747

Subjects: Algebraic Geometry (math.AG)

[80]  arXiv:2312.07587 [pdf, ps, other]

Title: The Rigid Pham-Brieskorn Threefolds

Authors: Michael Chitayat, Adrien Dubouloz

Comments: Minor correction to the statement of Cor. 2.1.14

Subjects: Algebraic Geometry (math.AG); Commutative Algebra (math.AC)

[81]  arXiv:2312.07591 [pdf, ps, other]

Title: On free curves and related open problems

Authors: Alexandru Dimca

Comments: v2: Remark 3.3 is new, Conjecture 4.6 was changed to Question 4.6 and several new references were added

Subjects: Algebraic Geometry (math.AG); Commutative Algebra (math.AC); Combinatorics (math.CO)

[82]  arXiv:2312.07595 [pdf, other]

Title: Deformation quantization and perverse sheaves

Authors: Sam Gunningham, Pavel Safronov

Comments: 45 pages

Subjects: Algebraic Geometry (math.AG); Symplectic Geometry (math.SG)

[83]  arXiv:2312.07776 [pdf, ps, other]

Title: Cycle caractéristique sur une puissance symétrique d'une courbe et déterminant de la cohomologie étale

Authors: Fabrice Orgogozo, Joël Riou

Comments: in French language. v2:Shortly after the submission on arXiv, Will Sawin kindly informed us that he had obtained in arXiv:1907.08098 a more general formula for the characteristic cycle than the one which we obtained (independently) in this text

Subjects: Algebraic Geometry (math.AG)

[84]  arXiv:2312.07982 [pdf, ps, other]

Title: Collineation varieties of tensors

Authors: Fulvio Gesmundo, Hanieh Keneshlou

Comments: 19 pages, one ancillary file. Comments are welcome

Subjects: Algebraic Geometry (math.AG)

[85]  arXiv:2312.08126 [pdf, ps, other]

Title: Towards the classification of semistable fibrations having exactly five singular fibers

Authors: Margarita Castaneda-Salazar, Margarida Mendes Lopes, Alexis Zamora

Comments: Final version to appear in Mediterr. J. Math. Several changes in exposition

Subjects: Algebraic Geometry (math.AG)

[86]  arXiv:2312.08316 [pdf, ps, other]

Title: Affine monoids of corank one

Authors: Yulia Zaitseva

Comments: 23 pages

Subjects: Algebraic Geometry (math.AG)

[87]  arXiv:2312.08359 [pdf, ps, other]

Title: Structure of connected nested automorphism groups

Authors: Alexander Perepechko

Comments: 9 pages

Subjects: Algebraic Geometry (math.AG)

[88]  arXiv:2312.08421 [pdf, ps, other]

Title: Modified Derksen invariant

Authors: Ilya Boldurev, Sergey Gaifullin, Anton Shafarevich

Subjects: Algebraic Geometry (math.AG)

[89]  arXiv:2312.08498 [pdf, ps, other]

Title: Automorphisms of Du Val del Pezzo surfaces

Authors: Nikita Virin

Subjects: Algebraic Geometry (math.AG)

[90]  arXiv:2312.08505 [pdf, ps, other]

Title: On schemes with trivial higher étale homotopy groups

Authors: Mohammed Moutand

Subjects: Algebraic Geometry (math.AG)

[91]  arXiv:2312.08527 [pdf, ps, other]

Title: The Le Bruyn-Procesi theorem and Hilbert schemes

Authors: Alastair Craw, Ryo Yamagishi

Comments: 33 pages; v2 includes a short, independent proof of Fogarty's result; v3 includes a proof that Hilb^n(S) has symplectic singularities when the surface S does

Subjects: Algebraic Geometry (math.AG); Representation Theory (math.RT)

[92]  arXiv:2312.09096 [pdf, ps, other]

Title: Correspondence between Projective bundles over $\mathbb{P}^{2}$ and rational Hypersurfaces in $\mathbb{P}^{4}$

Authors: Shivam Vats

Comments: This article consists of 17 pages

Subjects: Algebraic Geometry (math.AG)

[93]  arXiv:2312.09175 [pdf, ps, other]

Title: On simple singularities and Weyl monodromy actions in mixed characteristic

Authors: Jason Kountouridis

Comments: 66 pages, comments welcome!

Subjects: Algebraic Geometry (math.AG); Number Theory (math.NT)

[94]  arXiv:2312.09268 [pdf, ps, other]

Title: Hodge conjecture for projective hypersurface

Authors: Johann Bouali

Comments: arXiv admin note: substantial text overlap with arXiv:2303.09932

Subjects: Algebraic Geometry (math.AG)

[95]  arXiv:2312.09309 [pdf, ps, other]

Title: Linear stability of coherent systems and applications to Butler's conjecture

Authors: Abel Castorena, George H. Hitching, Erick Luna

Comments: 21 pages

Subjects: Algebraic Geometry (math.AG)

[96]  arXiv:2312.09438 [pdf, ps, other]

Title: A Beauville-Laszlo-type descent theorem for locally Noetherian schemes

Authors: Robin Louis

Comments: 52 pages, comments are welcome!

Subjects: Algebraic Geometry (math.AG)

[97]  arXiv:2312.09441 [pdf, ps, other]

Title: A question about generalized nonvanishing

Authors: Claudio Fontanari

Comments: Final version, to appear in Rendiconti del Circolo Matematico di Palermo

Subjects: Algebraic Geometry (math.AG)

[98]  arXiv:2312.09470 [pdf, ps, other]

Title: Nef vector bundles on a hyperquadric with first Chern class two

Authors: Masahiro Ohno

Comments: 18 pages. arXiv admin note: substantial text overlap with arXiv:2311.02836

Subjects: Algebraic Geometry (math.AG)

[99]  arXiv:2312.09477 [pdf, ps, other]

Title: Smooth symmetric systems over a finite field and applications

Authors: Nardo Giménez, Guillermo Matera, Mariana Pérez, Melina Privitelli

Comments: 37 pages. arXiv admin note: text overlap with arXiv:1510.03721, arXiv:1807.08052

Subjects: Algebraic Geometry (math.AG); Combinatorics (math.CO); Number Theory (math.NT)

[100]  arXiv:2312.09671 [pdf, other]

Title: Half canonical rings of Gorenstein spin curves of genus two

Authors: Stephen Coughlan, Marco Franciosi, Rita Pardini, Sönke Rollenske

Subjects: Algebraic Geometry (math.AG)