Algebraic Geometry

Authors and titles for May 2018

[51] arXiv:1805.03461 [pdf, other]

Title: Push-forwards of Chow groups of smooth ample divisors

Kalyan Banerjee, Jaya NN Iyer, James D. Lewis

Comments: Final version, to appear

Subjects: Algebraic Geometry (math.AG)

[52] arXiv:1805.03485 [pdf, other]

Title: Uniqueness of fiber functors and universal Tannakian categories

Daniel Schäppi

Comments: 16 pages

Subjects: Algebraic Geometry (math.AG); Category Theory (math.CT)

[53] arXiv:1805.03520 [pdf, other]

Title: Differentiable approximation of continuous semialgebraic maps

José F. Fernando, Riccardo Ghiloni

Comments: 26 pages

Journal-ref: Selecta Mathematica (2019)

Subjects: Algebraic Geometry (math.AG)

[54] arXiv:1805.03525 [pdf, other]

Title: On 3-canonical maps of varieties of Albanese fiber dimension one

Yuesen Chen

Comments: 14 pages

Subjects: Algebraic Geometry (math.AG)

[55] arXiv:1805.03860 [pdf, other]

Title: Computing curves on real rational surfaces

Niels Lubbes

Subjects: Algebraic Geometry (math.AG); Symbolic Computation (cs.SC)

[56] arXiv:1805.03906 [pdf, other]

Title: Algebraic Cogroups and Nori-Motives

Javier Fresán, Peter Jossen

Subjects: Algebraic Geometry (math.AG)

[57] arXiv:1805.03991 [pdf, other]

Title: Characterization of affine surfaces with a torus action by their automorphism groups

Alvaro Liendo, Andriy Regeta, Christian Urech

Comments: 29 pages. Minor changes as suggested by the referee. Accepted for publication in Ann. Sci. Sc. Norm. Sup. Pisa Cl. Sci

Subjects: Algebraic Geometry (math.AG)

[58] arXiv:1805.04050 [pdf, other]

Title: Deformation of exceptional collections

Xiaowen Hu

Comments: Typos corrected. Presentation of the introduction improved. One open problem modified

Subjects: Algebraic Geometry (math.AG); K-Theory and Homology (math.KT)

[59] arXiv:1805.04063 [pdf, other]

Title: Maximally Algebraic potentially irrational Cubic Fourfolds

Radu Laza

Comments: comments welcome; 7 pages

Journal-ref: Proc. Amer. Math. Soc. 149 (2021), no. 8, 3209-3220

Subjects: Algebraic Geometry (math.AG)

[60] arXiv:1805.04064 [pdf, other]

Title: Geometry of $\mathbb{P}^{2}$ blown up at seven points

Nabanita Ray

Comments: 14 pages,Comments are welcome!

Subjects: Algebraic Geometry (math.AG)

[61] arXiv:1805.04076 [pdf, other]

Title: Stable Higgs Bundles on ruled surfaces

Snehajit Misra

Comments: Final Version

Journal-ref: Indian Journal of Pure and Applied Mathematics, 51, 735-747 (2020)

Subjects: Algebraic Geometry (math.AG)

[62] arXiv:1805.04175 [pdf, other]

Title: The Cavender-Farris-Neyman Model with a Molecular Clock

Jane Ivy Coons, Seth Sullivant

Comments: 54 pages, 19 figures

Subjects: Algebraic Geometry (math.AG); Commutative Algebra (math.AC); Combinatorics (math.CO); Populations and Evolution (q-bio.PE)

[63] arXiv:1805.04646 [pdf, other]

Title: Integral Regulators for Higher Chow Complexes

Muxi Li

Journal-ref: SIGMA 14 (2018), 118, 12 pages

Subjects: Algebraic Geometry (math.AG)

[64] arXiv:1805.04670 [pdf, other]

Title: On the decomposability of mod 2 cohomological invariants of Weyl groups

Christian Hirsch

Comments: 42 pages

Subjects: Algebraic Geometry (math.AG)

[65] arXiv:1805.04696 [pdf, other]

Title: Counting conics on sextic 4-folds

Yalong Cao

Comments: 10 pages, typos fixed, to appear in Math. Res. Lett

Journal-ref: Math. Res. Lett., Vol. 26, No. 5 (2019), pp. 1343-1357

Subjects: Algebraic Geometry (math.AG)

[66] arXiv:1805.04746 [pdf, other]

Title: Counting zero-dimensional subschemes in higher dimensions

Yalong Cao, Martijn Kool

Comments: 18 pages. Published version

Journal-ref: Jour. Geom. Phys. 136 (2019) 119--137

Subjects: Algebraic Geometry (math.AG); High Energy Physics - Theory (hep-th); Combinatorics (math.CO)

[67] arXiv:1805.04894 [pdf, other]

Title: Open Gromov-Witten Theory of $K_{\mathbb P^2}, K_{{\mathbb P^1}\times {\mathbb P^1}}, K_{W\mathbb P[1,1,2]}, K_{\mathbb F_1}$ and Jacobi Forms

Bohan Fang, Yongbin Ruan, Yingchun Zhang, Jie Zhou

Comments: 2 figures, revised version

Journal-ref: Commun. Math. Phys. 369, 675-719 (2019)

Subjects: Algebraic Geometry (math.AG); Mathematical Physics (math-ph)

[68] arXiv:1805.04896 [pdf, other]

Title: Commuting homogeneous locally nilpotent derivations

Dmitry Matveev

Subjects: Algebraic Geometry (math.AG)

[69] arXiv:1805.04942 [pdf, other]

Title: Motivic volume of families of polarized rigid-analytic tori

Dmitry Sustretov

Comments: comments welcome

Subjects: Algebraic Geometry (math.AG); Logic (math.LO)

[70] arXiv:1805.04999 [pdf, other]

Title: Durfee-type inequality for complete intersection surface singularities

Makoto Enokizono

Comments: 15 pages

Journal-ref: Duke Math. J. 170, no. 1 (2021), 1-21

Subjects: Algebraic Geometry (math.AG)

[71] arXiv:1805.05024 [pdf, other]

Title: Flexibility of normal affine horospherical varieties

Sergey Gaifullin, Anton Shafarevich

Subjects: Algebraic Geometry (math.AG)

[72] arXiv:1805.05174 [pdf, other]

Title: Non-commutative nodal curves and derived tame algebras

Igor Burban, Yuriy Drozd

Comments: Some typos corrected. A new section about AG-invariant of a gentle algebra and relations with the homological mirror symmetry is included. A more detailed discussion of Morita equivalences of tame nodal curves is given

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

[73] arXiv:1805.05176 [pdf, other]

Title: Hilbert schemes of two points on K3 surfaces and certain rational cubic fourfolds

Genki Ouchi

Comments: 6 pages

Subjects: Algebraic Geometry (math.AG)

[74] arXiv:1805.05180 [pdf, other]

Title: Degree and birationality of multi-graded rational maps

Laurent Busé, Yairon Cid-Ruiz, Carlos D'Andrea

Comments: to appear in Proc. Lond. Math. Soc

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

[75] arXiv:1805.05285 [pdf, other]

Title: Tilting bundles on hypertoric varieties

Špela Špenko, Michel Van den Bergh

Comments: Various fixes

Subjects: Algebraic Geometry (math.AG)

[76] arXiv:1805.05326 [pdf, other]

Title: Arnol'd's type theorem on a neighborhood of a cycle of rational curves

Takayuki Koike

Comments: 20 pages

Subjects: Algebraic Geometry (math.AG); Complex Variables (math.CV)

[77] arXiv:1805.05369 [pdf, other]

Title: The Brauer group of the universal moduli space of vector bundles over smooth curves

Roberto Fringuelli, Roberto Pirisi

Comments: 26 pages. Fixed a mistake in section 3.1 in the new version

Subjects: Algebraic Geometry (math.AG)

[78] arXiv:1805.05413 [pdf, other]

Title: On the integrality of Seshadri constants of abelian surfaces

Thomas Bauer, Felix Fritz Grimm, Maximilian Schmidt

Subjects: Algebraic Geometry (math.AG)

[79] arXiv:1805.05496 [pdf, other]

Title: Some results about zero-cycles on abelian and semi-abelian varieties

Evangelia Gazaki

Comments: 13 pages

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

[80] arXiv:1805.05501 [pdf, other]

Title: Revisiting the de Rham-Witt complex

Bhargav Bhatt, Jacob Lurie, Akhil Mathew

Comments: 158 pages. Final version. Contains a new section on the comparison with crystalline cohomology

Subjects: Algebraic Geometry (math.AG)

[81] arXiv:1805.05604 [pdf, other]

Title: Composition series for GKZ-systems

Jiangxue Fang

Comments: 32 pages, appear to Transactions of AMS

Subjects: Algebraic Geometry (math.AG)

[82] arXiv:1805.05611 [pdf, other]

Title: Connections and restrictions to curves

Indranil Biswas, Sudarshan Gurjar

Comments: Final version

Subjects: Algebraic Geometry (math.AG)

[83] arXiv:1805.05618 [pdf, other]

Title: On the Dickson-Guralnick-Zieve curve

Massimo Giulietti, Gábor Korchmáros, Marco Timpanella

Subjects: Algebraic Geometry (math.AG)

[84] arXiv:1805.05678 [pdf, other]

Title: Noether's problem for some subgroups of $S_{14}$: the modular case

Hang Fu, Ming-chang Kang, Baoshan Wang, Jian Zhou

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

[85] arXiv:1805.05679 [pdf, other]

Title: Cylinders in Mori Fiber Spaces: forms of the quintic del Pezzo threefold

Adrien Dubouloz (CNRS, IMB), Takashi Kishimoto

Subjects: Algebraic Geometry (math.AG)

[86] arXiv:1805.05815 [pdf, other]

Title: Intersection cohomology of the moduli space of Higgs bundles on a genus 2 curve

Camilla Felisetti

Comments: Final version, to appear in Journal of the Institute of Mathematics of Jussieu

Subjects: Algebraic Geometry (math.AG); Differential Geometry (math.DG)

[87] arXiv:1805.05920 [pdf, other]

Title: Fundamental classes in motivic homotopy theory

Frédéric Déglise, Fangzhou Jin, Adeel A. Khan

Comments: 45 pages, final version; to appear in JEMS

Subjects: Algebraic Geometry (math.AG); K-Theory and Homology (math.KT)

[88] arXiv:1805.06142 [pdf, other]

Title: Chow-Witt rings of Grassmannians

Matthias Wendt

Comments: Significant revision, streamlined proofs, 34p

Journal-ref: Algebr. Geom. Topol. 24 (2024) 1-48

Subjects: Algebraic Geometry (math.AG)

[89] arXiv:1805.06317 [pdf, other]

Title: An $\mathbb{F}_{p^2}$-maximal Wiman's sextic and its automorphisms

Massimo Giulietti, Motoko Kawakita, Stefano Lia, Maria Montanucci

Comments: arXiv admin note: text overlap with arXiv:1603.06706, arXiv:1703.10592

Subjects: Algebraic Geometry (math.AG)

[90] arXiv:1805.06414 [pdf, other]

Title: On the rationality of the moduli space of instanton bundles on the projective 3-space

Mihai Halic, Roshan Tajarod

Comments: revised version

Subjects: Algebraic Geometry (math.AG)

[91] arXiv:1805.06418 [pdf, other]

Title: Subvarieties with partially ample normal bundle

Mihai Halic

Comments: This is a revised version of the first part of arXiv:1511.07524

Subjects: Algebraic Geometry (math.AG)

[92] arXiv:1805.06601 [pdf, other]

Title: $(t,\ell)$-stability and coherent systems

L. Brambila-Paz, O. Mata-Gutiérrez

Comments: 13 pages, Exposition was improved. No mathematical changes, typos corrected and reference [10] was added

Subjects: Algebraic Geometry (math.AG)

[93] arXiv:1805.06817 [pdf, other]

Title: On stringy Euler characteristics of Clifford non-commutative varieties

Lev Borisov, Chengxi Wang

Comments: 34 pages, 2 figures

Subjects: Algebraic Geometry (math.AG)

[94] arXiv:1805.06926 [pdf, other]

Title: Partially ample subvarieties of projective varieties

Mihai Halic

Comments: This is a revised version of the second part of arXiv:1511.07524

Subjects: Algebraic Geometry (math.AG)

[95] arXiv:1805.07001 [pdf, other]

Title: Rational curves in holomorphic symplectic varieties and Gromov-Witten invariants

Georg Oberdieck, Junliang Shen, Qizheng Yin

Comments: Minor changes. Replace Proposition 3.2 in v3, whose proof contains a gap, by Lemma 3.2. Main theorems 0.1 and 0.2 remain unchanged. Modifications comparing to v3 are summarized in Footnote 3 (Page 4)

Journal-ref: Adv. Math. 357 (2019) 106829

Subjects: Algebraic Geometry (math.AG)

[96] arXiv:1805.07066 [pdf, other]

Title: Ascending chain condition for $F$-pure thresholds with fixed embedding dimension

Kenta Sato

Comments: 14pages

Subjects: Algebraic Geometry (math.AG)

[97] arXiv:1805.07081 [pdf, other]

Title: The Test Function Conjecture for Local Models of Weil-restricted groups

Thomas J. Haines, Timo Richarz

Comments: Minor corrections; added §§7-8 on the test function conjecture for modified local models

Journal-ref: Compositio Math. 156 (2020) 1348-1404

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

[98] arXiv:1805.07121 [pdf, other]

Title: Motivic periods and Grothendieck arithmetic invariants

F. Andreatta, L. Barbieri-Viale, A. Bertapelle

Comments: Appendix by B. Kahn added. Revised version to appear on Adv. Math

Journal-ref: Advances in Mathematics Vol. 359 (2020) 106880

Subjects: Algebraic Geometry (math.AG); K-Theory and Homology (math.KT); Number Theory (math.NT)

[99] arXiv:1805.07172 [pdf, other]

Title: Cohomological invariants mod 2 of Weyl groups

Jean-Pierre Serre

Comments: 3 pages, to appear in Oberwolfach Reports 15 (2018)

Subjects: Algebraic Geometry (math.AG)

[100] arXiv:1805.07265 [pdf, other]

Title: Symplectic geometry of a moduli space of framed Higgs bundles

Indranil Biswas, Marina Logares, Ana Peón-Nieto

Comments: 21 pages, minor modifications

Journal-ref: Int. Math. Res. Notices (2019)

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