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Related papers: Oka's conjecture on irreducible plane sextics

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We consider random polynomials with independent identically distributed coefficients with a fixed law. Assuming the Riemann hypothesis for Dedekind zeta functions, we prove that such polynomials are irreducible and their Galois groups…

Number Theory · Mathematics 2022-08-25 Emmanuel Breuillard , Péter P. Varjú

We develop a geometric approach to the study of plane sextics with a triple singular point. As an application, we give an explicit geometric description of all irreducible maximal sextics with a type $\bold E_7$ singular point and compute…

Algebraic Geometry · Mathematics 2014-11-11 Alex Degtyarev

We introduce a notion of tangential Alexander polynomials for plane curves and study the relation with $\theta$^Alexander polynomial. As an application, we use these polynomials to study a non-reduced degeneration $C_t \to D_0+jL$. We show…

Algebraic Geometry · Mathematics 2007-05-23 Mutsuo Oka

We compute the fundamental groups of five maximizing sextics with double singular points only; in four cases, the groups are as expected. The approach used would apply to other sextics as well, given their equations.

Algebraic Geometry · Mathematics 2013-12-11 Alex Degtyarev

We suggest a relatively simple and totally geometric conjectural description of uncolored DAHA superpolynomials of arbitrary algebraic knots (conjecturally coinciding with the reduced stable Khovanov-Rozansky polynomials) via the flagged…

Quantum Algebra · Mathematics 2018-03-16 Ivan Cherednik , Ian Philipp

Fox's conjecture (1962) states that the sequence of absolute values of the coefficients of the Alexander polynomial of alternating links is trapezoidal. While the conjecture remains open in general, a number of special cases have been…

Combinatorics · Mathematics 2025-12-16 Karola Mészáros , Melissa Sherman-Bennett , Alexander Vidinas

Fix any algebraic extension $\mathbb K$ of the field $\mathbb Q$ of rationals. In this article we study exponential sets $V\subset \mathbb R^n$. Such sets are described by the vanishing of so called exponential polynomials, i.e.,…

Algebraic Geometry · Mathematics 2017-08-01 Cordian Riener , Nicolai Vorobjov

Given a family of complex affine planes, we show that it is trivial over a Zariski open subset of the base. The proof relies upon a relative version of the contraction theorem.

Algebraic Geometry · Mathematics 2009-09-25 Shulim Kaliman , Mikhail Zaidenberg

We consider Shanks' simplest cubic fields $K$ for which the index $[\mathcal{O}_K:\mathbb{Z}[\rho]]$ of a root $\rho$ of the defining parametric polynomial is $3$. For them, we study the additive indecomposables of $K$ and provide a…

Number Theory · Mathematics 2025-03-13 Daniel Gil-Muñoz , Magdaléna Tinková

We show the existence of sextics of non-torus type which is a Zariski partner of the tame sextics of torus type with simple singularities.

Algebraic Geometry · Mathematics 2007-05-23 Mutsuo Oka

We construct the first examples of what we call fake ES-irreducible components; Definition 2.8. In our way to do so, we classify the automorphism groups of smooth plane sextics that only have automorphisms of order 3 or less; Theorems 2.1,…

Algebraic Geometry · Mathematics 2023-09-19 Eslam Badr , Francesc Bars

Let X be a simplicial complex with the ground set V. Define its Alexander dual as a simplicial complex X* = {A \subset V: V \setminus A \notin X}. The combinatorial Alexander duality states that the i-th reduced homology group of X is…

Combinatorics · Mathematics 2011-10-25 Anders Björner , Martin Tancer

We complete the enumeration of the possible roots of the Alexander polynomial (both conventional and over finite fields) of a trigonal curve. The curves are not assumed proper or irreducible.

Algebraic Geometry · Mathematics 2016-09-07 Alex Degtyarev

A smooth complex variety satisfies the Generalized Jacobian Conjecture if all its \'etale endomorphisms are proper. We study the conjecture for $\mathbb{Q}$-acyclic surfaces of negative Kodaira dimension. We show that $G$-equivariant…

Algebraic Geometry · Mathematics 2019-04-30 Adrien Dubouloz , Karol Palka

For any knot, the following are equivalent. (1) The infinite cyclic cover has uncountably many finite covers; (2) there exists a finite-image representation of the knot group for which the twisted Alexander polynomial vanishes; (3) the knot…

Geometric Topology · Mathematics 2014-02-26 Daniel S. Silver , Susan G. Williams

We construct exponentially large collections of pairwise distinct equisingular deformation families of irreducible plane curves sharing the same sets of singularities. The fundamental groups of all curves constructed are abelian.

Algebraic Geometry · Mathematics 2009-07-02 Alex Degtyarev

We classify projective symmetries of irreducible plane sextics with simple singularities which are stable under equivariant deformations. We also outline a connection between order~2 stable symmetries and maximal trigonal curves.

Algebraic Geometry · Mathematics 2008-10-24 Alex Degtyarev

In this paper, we show that Oda's question holds for $n$-dimensional simplicial reflexive polytope $P$ and lattice polytope $Q$ containing the origin, when the vertex of $Q$ is either a vertex of $P$ or the origin, provided that $P$ has no…

Combinatorics · Mathematics 2025-11-07 Binnan Tu

We study the moduli spaces and compute the fundamental groups of plane sextics of torus type with the set of inner singularities $2\bold{A}_8$ or $\bold{A}_{17}$. We also compute the fundamental groups of a number of other sextics, both of…

Algebraic Geometry · Mathematics 2011-07-29 Alex Degtyarev

We prove a complex polynomial plank covering theorem for not necessarily homogeneous polynomials. As the consequence of this result, we extend the complex plank theorem of Ball to the case of planks that are not necessarily centrally…

Metric Geometry · Mathematics 2024-05-28 Alexey Glazyrin , Roman Karasev , Alexandr Polyanskii