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Related papers: Tetrahedral quartics in Projective Space

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We study quartic surfaces that admit a group of projective automorphisms isomorphic to icosahedron group.

Algebraic Geometry · Mathematics 2017-12-27 Igor Dolgachev

For every p >= 5, we determine all Z_p-invariant nonsingular quartic surfaces in the three dimensional projective space over an algebraically closed field of characteristic zero. In some cases, we also determine their full projective…

Algebraic Geometry · Mathematics 2019-09-09 Stefano Marcugini , Fernanda Pambianco , Hitoshi Kaneta

We study the problem of classifying local projective structures in dimension two having non trivial Lie symmetries. In particular we obtain a classification of flat projective structures having positive dimensional Lie algebra of projective…

Complex Variables · Mathematics 2023-05-26 M. Falla Luza , F. Loray

Ternary real-valued quartics in $\mathbb{R}^3$ being invariant under octahedral symmetry are considered. The geometric classification of these surfaces is given. A new type of surfaces emerge from this classification.

Algebraic Geometry · Mathematics 2018-08-29 Noémie Combe

The goal of this paper is to present a number of problems about automorphism groups of nonpositively curved polyhedral complexes and their lattices, meant to highlight possible directions for future research.

Group Theory · Mathematics 2012-09-06 Benson Farb , G. Christopher Hruska , Anne Thomas

We describe a set of generators and defining relations for the group of birational automorphisms of a general 15-nodal quartic surface in the complex projective 3-dimensional space.

Algebraic Geometry · Mathematics 2019-10-29 Igor Dolgachev , Ichiro Shimada

We compute and analyse the moduli space of those real projective structures on a hyperbolic 3-orbifold that are modelled on a single ideal tetrahedron in projective space. Parameterisations are given in terms of classical invariants,…

Geometric Topology · Mathematics 2021-01-06 Joan Porti , Stephan Tillmann

We study linear series on curves inducing injective morphisms to projective space, using zero-dimensional schemes and cohomological vanishings. Albeit projections of curves and their singularities are of central importance in algebraic…

Algebraic Geometry · Mathematics 2020-05-05 Edoardo Ballico , Emanuele Ventura

We classify rational, irreducible quartic symmetroids in projective 3-space. They are either singular along a line or a smooth conic section, or they have a triple point or a tacnode.

Algebraic Geometry · Mathematics 2017-08-15 Martin Helsø

In the present paper we study the geometry of plane quartics with large automorphism groups. We show results devoted to smooth plane quartics that are invariant under the action of the elementary abelian group of type $[2,2,2]$, and we…

Algebraic Geometry · Mathematics 2024-06-12 Marek Janasz

Let k be a perfect field and let K/k be a finite extension of fields. An arithmetic noncommutative projective line is a noncommutative space equal to the projectivization of the noncommutative symmetric algebra of a k-central two -sided…

Quantum Algebra · Mathematics 2014-05-30 Adam Nyman

In this note we discuss some arithmetic and geometric questions concerning self maps of projective algebraic varieties.

Algebraic Geometry · Mathematics 2007-05-23 Najmuddin Fakhruddin

We study the Penrose transform for the `quaternionic objects' whose twistor spaces are complex manifolds endowed with locally complete families of embedded Riemann spheres with positive normal bundles.

Differential Geometry · Mathematics 2015-03-26 Radu Pantilie

In this work, we present an adaptation of the classical stereographic projection, originally formulated for the sphere, now considering the context of the ellipsoid and the elliptic paraboloid. We begin by constructing the stereographic…

Differential Geometry · Mathematics 2025-06-11 W. F. C. Barboza , T. F. Cruz , R. B. Leal

The use of geometric invariants has recently played an important role in the solution of classification problems in non-commutative ring theory. We construct geometric invariants of non-commutative projectivizations, a significant class of…

Rings and Algebras · Mathematics 2009-03-03 A. Nyman

We identify the algebra of regular functions on the space of quartic polynomials in three complex variables invariant under SL(3,C) with an algebra of meromorphic automorphic forms on the complex 6-ball. We also discuss the underlying…

Algebraic Geometry · Mathematics 2007-05-23 Eduard Looijenga

This article provides a geometric representation for the well-known isomorphism between the special orthogonal group of an isotropic quadratic space of dimension 3 and the group of projective transformations of a projective line. This…

History and Overview · Mathematics 2024-04-22 Nicholas Phat Nguyen

We present a local classification of smooth projective surfaces in 3-space via projective transformations in accordance with singularity types of central projections up to codimension 4. We also discuss relations between our classification…

Differential Geometry · Mathematics 2016-09-28 Hiroaki Sano , Yutaro Kabata , Jorge Luiz Deolindo Silva , Toru Ohmoto

A projective mirror polyhedron is a projective polyhedron endowed with reflections across its faces. We construct an explicit diffeomorphism between the moduli space of a mirror projective polyhedron with fixed dihedral angles in…

Geometric Topology · Mathematics 2012-04-26 Ludovic Marquis

In this paper we study the projective automorphism group of domains in real, complex, and quaternionic projective space and present two new characterizations of the unit ball in terms of the size of the automorphism group and the regularity…

Differential Geometry · Mathematics 2016-09-21 Andrew M. Zimmer
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