Results 111 to 120 of about 275,582 (319)

Clifford Theorem for real algebraic curves [PDF]

open access: yesarXiv, 2005
We establish for smooth projective real curves the equivalent of the classical Clifford inequality known for complex curves. We also study the cases when equality holds.
arxiv  

Experimental studies on multi‐scale data‐driven methods within the framework of structural health monitoring

open access: yesCivil Engineering Design, EarlyView.
Abstract The German Research Foundation has established the priority program SPP 100+. Its subject is monitoring bridge structures in civil engineering. The data‐driven methods cluster deals with the use of measurements and their special global and local analysis methods, which complement each other in an overall multi‐scale concept in order to realize
Maximilian Rohrer   +13 more
wiley   +1 more source

Computational algebra and algebraic curves [PDF]

open access: yesComm. Comp. Alg.,vol.37, No. 4,117-124, 2003, 2006
The development of computational techniques in the last decade has made possible to attack some classical problems of algebraic geometry. In this survey, we briefly describe some open problems related to algebraic curves which can be approached from a computational viewpoint.
arxiv  

Susceptible‐infected‐recovered model with stochastic transmission

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The susceptible‐infected‐recovered (SIR) model is the cornerstone of epidemiological models. However, this specification depends on two parameters only, which results in its lack of flexibility and explains its difficulty to replicate the volatile reproduction numbers observed in practice.
Christian Gouriéroux, Yang Lu
wiley   +1 more source

Radical parametrizations of algebraic curves by adjoint curves

open access: yesJournal of Symbolic Computation, 2011
We present algorithms for parametrizing by radicals an irreducible curve, not necessarily plane, when the genus is less o equal to 4 and they are defined over an algebraically closed field of characteristic zero. In addition, we also present an algorithm for parametrizing by radicals any irreducible plane curve of degree $d$ having at least a point of ...
David Sevilla, J. Rafael Sendra
openaire   +2 more sources

X‐Ray Absorption Studies of Local Structure of Dilute Ionic Species in Molten Salts

open access: yesChemistry–Methods, EarlyView.
This article reviews the state of the art in the use of X‐ray absorption spectroscopy methods, both experimental and theoretical, for understanding the structure of dopant metal ions in molten salts. Recent strategies, including molecular dynamics simulations and neural network–assisted analysis of X‐ ray absorption spectroscopy as well as chemometrics
Kaifeng Zheng   +11 more
wiley   +1 more source

Analysis of Dynamical Characteristic of Piecewise-Nonlinear Asymmetric Hysteretic System Based on Incremental Harmonic Balance Method

open access: yesDiscrete Dynamics in Nature and Society, 2015
Considering a sort of elastic mass with asymmetric hysteresis characteristic which widespread existing in engineering field, a piecewise-nonlinear dynamical equation, which contains asymmetric hysteretic loop, is established.
H. R. Liu   +4 more
doaj   +1 more source

Finite-size effect for dyonic giant magnons in CPβ3

open access: yesPhysics Letters B, 2017
We studied the finite-size giant magnons in AdS4×CPβ3 background using the classical spectral curve constructed in this paper. We computed the finite-size corrections to the dispersion relations for the RP3 giant magnons using our twisted algebraic curve
Hui-Huang Chen, Jun-Bao Wu
doaj   +1 more source

The bar derived category of a curved dg algebra [PDF]

open access: yesJournal of Pure and Applied Algebra 212 (2008) 2633-2659, 2007
Curved A-infinity algebras appear in nature as deformations of dg algebras. We develop the basic theory of curved A-infinity algebras and, in particular, curved dg algebras. We investigate their link with a suitable class of dg coalgebras via the bar construction and produce Quillen model structures on their module categories. We define the analogue of
arxiv  

First‐order Sobolev spaces, self‐similar energies and energy measures on the Sierpiński carpet

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract For any p∈(1,∞)$p \in (1,\infty)$, we construct p$p$‐energies and the corresponding p$p$‐energy measures on the Sierpiński carpet. A salient feature of our Sobolev space is the self‐similarity of energy. An important motivation for the construction of self‐similar energy and energy measures is to determine whether or not the Ahlfors regular ...
Mathav Murugan, Ryosuke Shimizu
wiley   +1 more source

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