Results 111 to 120 of about 3,603,035 (255)

Parallel Vectors Extraction using Bézier Clipping

open access: yesComputer Graphics Forum, EarlyView.
Abstract In this paper, we propose a novel local feature extraction algorithm for the parallel vectors (PV) operator. Our method is based on Bézier clipping, which is a bracketing‐based root finding method that is commonly‐used in computer‐aided geometric design.
Nico Daßler, Tobias Günther
wiley   +1 more source

A newly discovered Carolingian text: Candidus' Liber testimoniorum veteris testamenti, written for Charlemagne

open access: yesEarly Medieval Europe, EarlyView.
This article presents a newly discovered Latin text: a theological treatise titled Liber testimoniorum veteris testamenti that was written by Alcuin’s friend Candidus (Wizo) at the request of Charlemagne. By discussing selected passages from the Heptateuch, Candidus seeks to demonstrate that Jesus Christ and the Holy Spirit, thus the whole Christian ...
Lukas J. Dorfbauer
wiley   +1 more source

Lie symmetry analysis of cubic–quartic optical solitons having cubic–quintic–septic–nonic form of self-phase modulation structure

open access: yesJournal of Optics
The present study examines optical solitons characterized by cubic–quartic dynamics and featuring a self-phase modulation structure encompassing cubic, quintic, septal, and nonic terms.
Akshat Kukkar   +7 more
semanticscholar   +1 more source

A Comparative Review of Specification Tests for Diffusion Models

open access: yesInternational Statistical Review, EarlyView.
Summary Diffusion models play an essential role in modelling continuous‐time stochastic processes in the financial field. Therefore, several proposals have been developed in the last decades to test the specification of stochastic differential equations.
A. López‐Pérez   +3 more
wiley   +1 more source

The Classification of Monogenic Quartic Orders via Diophantine Equations [PDF]

open access: yes
In this study, we will focus on classifying quartic monogenic orders based ontwo algebraic relations. First, we introduce index forms and study the connection between the solution set of particular index form equations and the monogenizations type of ...
Shumaker, Jaxon
core   +1 more source

Simultaneous Representation of Integers by a Pair of Ternary Quadratic Forms—With an Application to Index Form Equations in Quartic Number Fields [PDF]

open access: yes, 1996
LetQ1, Q2∈Z[X, Y, Z] be two ternary quadratic forms andu1, u2∈Z. In this paper we consider the problem of solving the system of equations[formula]According to Mordell [12] the coprime solutions of[formula]can be presented by finitely many expressions of ...
Gaál, István   +2 more
core   +1 more source

Replica-nondiagonal solutions in the SYK model

open access: yesJournal of High Energy Physics, 2019
We study the SYK model in the large N limit beyond the replica-diagonal approximation. First we show that there are exact replica-nondiagonal solutions of the saddle point equations for q = 2 for any finite replica number M.In the interacting q = 4 case ...
Irina Aref’eva   +3 more
doaj   +1 more source

Inference via the Skewness‐Kurtosis Set

open access: yesInternational Statistical Review, EarlyView.
Summary Kurtosis minus squared skewness is bounded from below by 1, but for unimodal distributions, this parameter is bounded by 189/125. In some applications, it is natural to compare distributions by comparing their kurtosis‐minus‐squared‐skewness parameters. The asymptotic behavior of the empirical version of this parameter is studied here for i.i.d.
Chris A. J. Klaassen, Bert van Es
wiley   +1 more source

Computing all integer solutions of a genus 1 equation [PDF]

open access: yes
The Elliptic Logarithm Method has been applied with great successto the problem of computing all integer solutions of equations ofdegree 3 and 4 defining elliptic curves. We extend this methodto include any equation f(u,v)=0 that defines a curve of genus
Stroeker, R.J., Tzanakis, N.
core   +1 more source

A Quartic with 28 Real Bitangents [PDF]

open access: yes, 1964
According to Pluecker's equations a plane quartic can have at most 28 bitangents. These can be all real as has been shown by Pluecker himself with the help of the example (see [l]):
R. Blum, A. P. Guinand
core   +1 more source

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