Results 31 to 40 of about 1,900,626 (355)

Explicit equations of the Cartwright-Steger surface [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2020
We construct explicit equations of Cartwright-Steger and related surfaces.
Lev A. Borisov, Sai-Kee Yeung
doaj   +1 more source

The Loss Surface of Deep Linear Networks Viewed Through the Algebraic Geometry Lens [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2018
By using the viewpoint of modern computational algebraic geometry, we explore properties of the optimization landscapes of deep linear neural network models.
D. Mehta   +3 more
semanticscholar   +1 more source

Formalization and Implementation of Algebraic Methods in Geometry [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2012
We describe our ongoing project of formalization of algebraic methods for geometry theorem proving (Wu's method and the Groebner bases method), their implementation and integration in educational tools.
Filip Marić   +3 more
doaj   +1 more source

Hyperelliptic classes are rigid and extremal in genus two [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2020
We show that the class of the locus of hyperelliptic curves with $\ell$ marked Weierstrass points, $m$ marked conjugate pairs of points, and $n$ free marked points is rigid and extremal in the cone of effective codimension-($\ell + m$) classes on ...
Vance Blankers
doaj   +1 more source

Factorization of the Abel-Jacobi maps [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
As an application of the theory of Lawson homology and morphic cohomology, Walker proved that the Abel-Jacobi map factors through another regular homomorphism. In this note, we give a direct proof of the theorem.
Fumiaki Suzuki
doaj   +1 more source

The construction problem for Hodge numbers modulo an integer in positive characteristic

open access: yesForum of Mathematics, Sigma, 2020
Let k be an algebraically closed field of positive characteristic. For any integer $m\ge 2$ , we show that the Hodge numbers of a smooth projective k-variety can take on any combination of values modulo m, subject only to Serre duality.
Remy van Dobben de Bruyn   +1 more
doaj   +1 more source

Opers of higher types, Quot-schemes and Frobenius instability loci [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2020
In this paper we continue our study of the Frobenius instability locus in the coarse moduli space of semi-stable vector bundles of rank $r$ and degree $0$ over a smooth projective curve defined over an algebraically closed field of characteristic $p>0 ...
Kirti Joshi, Christian Pauly
doaj   +1 more source

Algebraic singularities of scattering amplitudes from tropical geometry [PDF]

open access: yesJournal of High Energy Physics, 2019
We address the appearance of algebraic singularities in the symbol alphabet of scattering amplitudes in the context of planar N\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage ...
James R. Drummond   +3 more
semanticscholar   +1 more source

Complementary Dual Algebraic Geometry Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2016
Linear complementary dual (LCD) codes are a class of linear codes introduced by Massey in 1964. LCD codes have been extensively studied in literature recently.
Sihem Mesnager   +2 more
semanticscholar   +1 more source

Hilbert-Mumford stability on algebraic stacks and applications to $\mathcal{G}$-bundles on curves [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2018
In these notes we reformulate the classical Hilbert-Mumford criterion for GIT stability in terms of algebraic stacks, this was independently done by Halpern-Leinster.
Jochen Heinloth
doaj   +1 more source

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