Results 111 to 120 of about 3,709,601 (369)
Model Order Selection From Noisy Polynomial Data Without Using Any Polynomial Coefficients
IEEE Access, 2020 Given a set of noisy data values from a polynomial, determining the degree and coefficients of the polynomial is a problem of polynomial regressions. Polynomial regressions are very common in engineering, science, and other disciplines, and it is at the ...
Asoke K. Nandi
doaj +1 more source
Irrationality of growth constants associated with polynomial recursions
, 2020 We consider integer sequences that satisfy a recursion of the form $x_{n+1} = P(x_n)$ for some polynomial $P$ of degree $d > 1$. If such a sequence tends to infinity, then it satisfies an asymptotic formula of the form $x_n \sim A α^{d^n}$, but little can be said about the constant $α$.
Wagner, Stephan, Ziegler, Volker
openaire +4 more sources
Advanced Materials, EarlyView.A ferroelectric‐gated phototransistor (FGPT) enables linear and multilevel modulation of photoconductance through partial polarization switching and photogating effects. The device achieves photonic non‐volatility over a 153 dB dynamic range and performs in‐sensor processing under unstructured illumination, demonstrating enhanced face recognition ...
Yubin Lee +13 more
wiley +1 more source
Advanced Materials, EarlyView.This study reports alternating‐current (AC) driven magnetization reversal in a semi‐magnetic topological insulator (Cr,Bi,Sb)2Te3/(Bi,Sb)2Te3, with low current density. Time‐domain Hall voltage measurements reveal a nonlinear and rectified Hall effect, along with higher‐harmonic responses and hysteresis.
Yuto Kiyonaga +9 more
wiley +1 more source
Integral method from even to odd order for trigonometric B-spline basis
AIMS MathematicsThe conventional trigonometric B-spline basis of odd order for piecewise trigonometric polynomial space possesses a lot of good modeling properties. However, its order cannot be increased by the integral method like B-spline because of the particularity ...
Mei Li, Wanqiang Shen
doaj +1 more source
Determining projection constants of univariate polynomial spaces
Journal of Approximation Theory, 2018 The long-standing problem of minimal projections is addressed from a computational point of view. Techniques to determine bounds on the projection constants of univariate polynomial spaces are presented. The upper bound, produced by a linear program, and the lower bound, produced by a semidefinite program exploiting the method of moments, are often ...
Foucart, Simon, Lasserre, Jean-Bernard
openaire +5 more sources
Advanced Materials, EarlyView.AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll +19 more
wiley +1 more source
A finite-dimensional integrable system associated with a polynomial eigenvalue problem
International Journal of Mathematics and Mathematical Sciences, 2006 M. Antonowicz and A. P. Fordy (1988) introduced the second-order polynomial eigenvalue problem Lφ=(∂2+∑i=1nviλi)φ=αφ(∂=∂/∂x,α=constant) and discussed its multi-Hamiltonian structures.
Taixi Xu, Weihua Mu, Zhijun Qiao
doaj +1 more source
Colossal Cryogenic Electro‐Optic Response Through Metastability in Strained BaTiO3 Thin Films
Advanced Materials, EarlyView.Utilizing the thermodynamic theory of optical properties, a colossal cryogenic electro‐optic response in BaTiO3 thin films is designed and demonstrated by stabilizing a low symmetry metastable monoclinic phase via epitaxial strain tuning with an electro‐optic response reaching ≈2516 pm V−1 at 5 K. This approach represents a new paradigm for engineering
Albert Suceava +16 more
wiley +1 more source