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We construct special conics configurations from some points configurations which are the singularities of the dual of a quartic curve.

Algebraic Geometry · Mathematics 2020-09-04 Xavier Roulleau

We study the geometry of spaces of planes on smooth complete intersections of three quadrics, with a view toward rationality questions.

Algebraic Geometry · Mathematics 2019-04-15 Brendan Hassett , Yuri Tschinkel

This paper gives a complete classification of conics in $PE_2(\mathbb{R})$. The classification has been made earlier (Reveruk [5]), but it showed to be incomplete and not possible to cite and use in further studies of properties of conics,…

Metric Geometry · Mathematics 2013-06-18 Jelena Beban-Brkić , Marija Šimić Horvath

We study the structure of the set of all possible affine hyperplane sections of a convex polytope. We present two different cell decompositions of this set, induced by hyperplane arrangements. Using our decomposition, we bound the number of…

Combinatorics · Mathematics 2025-06-02 Marie-Charlotte Brandenburg , Jesús A. De Loera , Chiara Meroni

We present a complete computational classification of the combinatorial types of hyperplane sections, or slices, of the regular cube up to dimension six. For each dimension, we determine the exact number of distinct combinatorial types.…

Combinatorics · Mathematics 2025-10-13 Marie-Charlotte Brandenburg , Chiara Meroni

In classical Euclidean geometry, there are several equivalent definitions of conic sections. We show that in the hyperbolic plane, the analogues of these same definitions still make sense, but are no longer equivalent, and we discuss the…

Metric Geometry · Mathematics 2018-04-11 Patrick Chao , Jonathan Rosenberg

We define generalized distance-squared mappings, and we concentrate on the plane to plane case. We classify generalized distance-squared mappings of the plane into the plane in a recognizable way.

Differential Geometry · Mathematics 2014-04-11 S. Ichiki , T. Nishimura , R. Oset Sinha , M. A. S. Ruas

Precise destination prediction of taxi trajectories can benefit many intelligent location based services such as accurate ad for passengers. Traditional prediction approaches, which treat trajectories as one-dimensional sequences and…

Computer Vision and Pattern Recognition · Computer Science 2018-04-23 Jianming Lv , Qing Li , Xintong Wang

This is a paper about triangle cubics and conics in classical geometry with elements of projective geometry. In recent years, N.J. Wildberger has actively dealt with this topic using an algebraic perspective. Triangle conics were also…

Metric Geometry · Mathematics 2021-01-12 Ruslan Skuratovskii , Veronika Strarodub

The convex feasibility problem asks to find a point in the intersection of a collection of nonempty closed convex sets. This problem is of basic importance in mathematics and the physical sciences, and projection (or splitting) methods…

Optimization and Control · Mathematics 2013-12-03 Heinz H. Bauschke , Francesco Iorio , Valentin R. Koch

We present an algebraic study of the projection of plane curves and twisted cubics in space onto multiple images of pinhole cameras. The Zariski closure of the image of the projection of conics is a conic multiview varieties. Extending…

Algebraic Geometry · Mathematics 2024-04-05 Felix Rydell , Isak Sundelius

We describe convex quadric surfaces in n dimensions and characterize them as convex surfaces with quadric sections by a continuous family of hyperplanes.

Metric Geometry · Mathematics 2010-08-02 V. Soltan

We develop a circle of ideas involving pairs of lines in the plane, intersections of hyperbolically rotated elliptical cones and the locus of the centers of rectangles inscribed in lines in the plane.

Metric Geometry · Mathematics 2021-08-04 Bruce Olberding , Elaine A. Walker

In this present paper, we study the splitting of nodal plane curves with respect to contact conics. We define the notion of splitting type of such curves and show that it can be used as an invariant to distinguish the embedded topology of…

Algebraic Geometry · Mathematics 2016-08-22 Shinzo Bannai , Taketo Shirane

A closed convex subset of a normed linear space is said to have the strong separation property if it can be strongly separated from every other disjoint closed and convex set by a closed hyperplane. In this paper we give some results on the…

Optimization and Control · Mathematics 2020-03-26 Phung Huynh The

In classical geometry, there is no such well-known and much-studied topic as the construction of conic sections (or briefly conics) from its five points. Its importance in many applications of mechanical engineering, civil engineering and…

History and Overview · Mathematics 2023-10-16 Ákos G. Horváth

This paper first gives a brief overview over some interesting descriptions of conic sections, showing formulations in the three geometric algebras of Euclidean spaces, projective spaces, and the conformal model of Euclidean space. Second…

Rings and Algebras · Mathematics 2013-06-06 Eckhard Hitzer

In this paper, we study the geometry of trisections on certain rational elliptic surfaces. We utilize Mumford representations of semi-reduced divisors in order to construct trisections and related plane curves with interesting properties…

Algebraic Geometry · Mathematics 2021-03-16 S. Bannai , N. Kawana , R. Masuya , H. Tokunaga

Using the tools of noncommutative geometry we calculate the distances between the points of a lattice on which the usual discretized Dirac operator has been defined. We find that these distances do not have the expected behaviour, revealing…

High Energy Physics - Lattice · Physics 2009-10-22 G. Bimonte , F. Lizzi , G. Sparano

Barycentric coordinates provide solutions to the problem of expressing an element of a compact convex set as a convex combination of a finite number of extreme points of the set. They have been studied widely within the geometric…

Metric Geometry · Mathematics 2026-03-10 Anna Zamojska-Dzienio