Results 91 to 100 of about 2,413 (304)

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Factorization of colored knot polynomials at roots of unity

open access: yesPhysics Letters B, 2015
HOMFLY polynomials are the Wilson-loop averages in Chern–Simons theory and depend on four variables: the closed line (knot) in 3d space–time, representation R of the gauge group SU(N) and exponentiated coupling constant q.
Ya. Kononov, A. Morozov
doaj   +1 more source

Topology and factorization of polynomials

open access: yesMATHEMATICA SCANDINAVICA, 2009
For any polynomial $P\in {\mathsf C} [X_1,X_2,\ldots,X_n]$, we describe a $\mathsf C$-vector space $F(P)$ of solutions of a linear system of equations coming from some algebraic partial differential equations such that the dimension of $F(P)$ is the number of irreducible factors of $P$.
openaire   +3 more sources

Factorization of operator-valued polynomials in several non-commuting variables [PDF]

open access: yes, 2001
A version of Fejer–Riesz factorization and factorization of positive operator-valued polynomials in several non-commuting variables holds.
McCullough, Scott
core   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

open access: yesAdvanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič   +7 more
wiley   +1 more source

On the Factorization of Polynomials Over Discrete Valuation Domains

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
We study some factorization properties for univariate polynomials with coefficients in a discrete valuation domain (A,v). We use some properties of the Newton index of a polynomial F(X)=∑i=0daiXd-i∈ A[X] to deduce conditions on v(ai) that allow us to ...
Ştefănescu Doru
doaj   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 more
wiley   +1 more source

Wiener-Hopf factorization of placewise matrix polynomials [PDF]

open access: yes, 1983
A theory of companion divisors for systems of matrix polynomials is developed. This serves as a main tool for study of Wiener-Hopf factorization of piecewise matrix polynomials with respect to a contour which bounds a multiply connected domain ...
Gohberg, I., Lerer, L., Rodman, L.
core   +1 more source

Algorithms for the factorization of matrix polynomials [PDF]

open access: yes, 1992
142 p. : ill. ; 30 cmThe factorization (root finding) of scalar polynomials is an important tool of analysis and design for linear systems. This thesis is a part of an ongoing effort to generalize these tools to multivariable systems via the ...
Dahimene, Abdelhakim
core   +2 more sources

Discrete Spectral Transformations of Skew Orthogonal Polynomials and Associated Discrete Integrable Systems

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
Discrete spectral transformations of skew orthogonal polynomials are presented. From these spectral transformations, it is shown that the corresponding discrete integrable systems are derived both in 1+1 dimension and in 2+1 dimension. Especially in the (
Hiroshi Miki   +2 more
doaj   +1 more source

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