Results 21 to 30 of about 2,566 (295)
, 2023 We analyze the configurations of conics and lines on a special class of Kummer octic surfaces. In particular, we bound the number of conics by $176$ and show that there is a unique surface with $176$ conics, all irreducible: it admits a faithful action ...
Degtyarev, A., Degtyarev, Alex
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Mathematics, 2022 This article proposes a possible path devoted to upper secondary school and early university students, as well as training teachers, with the aim to build a conscious approach to the learning/teaching of the conics, which uses, for an educational purpose,
Emilia Florio
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On Multi-conditioned Conic Fitting in Geometric Algebra for Conics
Advances in Applied Clifford Algebras, 2023 We introduce several modifications of conic fitting in Geometric algebra for conics by incorporating additional conditions into the optimisation problem. Each of these extra conditions ensure additional geometric properties of a fitted conic, in particular, centre point position at the origin of coordinate system, axial alignment with coordinate axes ...
Pavel Loučka, Petr Vašík
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General Equations of Non-Degenerate Conics
Modelling in Civil Environmental Engineering, 2021 In this article, we present a method to obtain equations of non-degenerate conics in an initial Cartesian frame (xOy), starting from their canonical expressions in another Cartesian frame (x′′Cy′′).
Mihai Radu-Ioan
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Students' Mistakes and Misconceptions on the Subject of Conics
International Journal of Education, 2020 The purpose of this study is to determine the levels of geometric thinking, mistakes, and misconceptions of students on the concept of conics. This study was conducted on 91 students in the first semester in 2017 at one of the universities in Indonesia ...
Eyus Sudihartinih, Tia Purniati
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Bisectors of conics in isotropic plane
, 2023 In this paper we introduce the concept of a bisector of two curves in an isotropic plane. We study the bisectors of conics and classify them according to their type of circularity.
Ema Jurkin, Jurkin, Ema
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Crossing Limit Cycles of Planar Piecewise Linear Hamiltonian Systems without Equilibrium Points
Mathematics, 2020 In this paper, we study the existence of limit cycles of planar piecewise linear Hamiltonian systems without equilibrium points. Firstly, we prove that if these systems are separated by a parabola, they can have at most two crossing limit cycles, and if ...
Rebiha Benterki, Jaume LLibre
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Random Conical Tessellations [PDF]
Discrete & Computational Geometry, 2016 We consider tessellations of the Euclidean $(d-1)$-sphere by $(d-2)$-dimensional great subspheres or, equivalently, tessellations of Euclidean $d$-space by hyperplanes through the origin; these we call conical tessellations. For random polyhedral cones defined as typical cones in a conical tessellation by random hyperplanes, and for random cones which ...
Daniel Hug 0001, Rolf Schneider 0001
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Conic Approximation of Conic Offsets
Journal of Symbolic Computation, 1997 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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