Results 31 to 40 of about 2,116 (163)
Thermodynamics of localized magnetic moments in a Dirac conductor [PDF]
, 2011 We show that the magnetic susceptibility of a dilute ensemble of magnetic impurities in a conductor with a relativistic electronic spectrum is non-analytic in the inverse tempertature at $1/T\to 0$. We derive a general theory of this effect and construct
E. Burovski +5 more
core +2 more sources
Reinterpretation of Classic Proton Charge Form Factor Measurements
Frontiers in Physics, 2020 In 1963, a proton radius of 0.805(11) fm was extracted from electron scattering data and this classic value has been used in the standard dipole parameterization of the form factor. In trying to reproduce this classic result, we discovered that there was
Miha Mihovilovič +6 more
doaj +1 more source
Effective Summation and Interpolation of Series by Self-Similar Root Approximants
, 2015 We describe a simple analytical method for effective summation of series, including divergent series. The method is based on self-similar approximation theory resulting in self-similar root approximants.
Gluzman, S., Yukalov, V. I.
core +2 more sources
Rational approximation for solving an implicitly given Colebrook flow friction equation [PDF]
, 2019 The empirical logarithmic Colebrook equation for hydraulic resistance in pipes implicitly considers the unknown flow friction factor. Its explicit approximations, used to avoid iterative computations, should be accurate but also computationally efficient.
Brkić, Dejan, Praks, Pavel
core +5 more sources
Padé approximant related to inequalities for Gauss lemniscate functions
Journal of Inequalities and Applications, 2016 Based on the Padé approximation method, we present new inequalities for Gauss lemniscate functions. We also solve a conjecture on inequalities for Gauss lemniscate functions proposed by Sun and Chen.
Juan Liu, Chao-Ping Chen
doaj +1 more source
An analytical method with Padé technique for solving of variational problems
Nonlinear Engineering, 2017 In this paper, the homotopy analysis method (HAM) is employed to solve a class of variational problems (VPs). By using the so-called ħ-curves, we determine the convergence parameter ħ, which plays key role to control convergence of solution series.
Jaffarian H., Sayevand K., Kumar Sunil
doaj +1 more source
IEEE Access, 2020 To improve the efficiency for managing power systems with constant time delay, an improved frequency-weighted model reduction is proposed. First, the Padé approximant allows to represent the time delay in the state-space form and build a linear ...
Yonghui Nie +4 more
doaj +1 more source
Pseudo-epsilon expansion and the two-dimensional Ising model
, 2005 Starting from the five-loop renormalization-group expansions for the two-dimensional Euclidean scalar \phi^4 field theory (field-theoretical version of two-dimensional Ising model), pseudo-\epsilon expansions for the Wilson fixed point coordinate g ...
A. I. Sokolov +19 more
core +1 more source
Case Studies in Thermal Engineering, 2022 The primary goal of this research is to examine the thermal variance in a dovetail fin under fully wet conditions with ternary hybrid nanofluid ZnFe2O4 +MnZnFe2O4 +NiZnFe2O4- H2O taking temperature and humidity ratio differences into account as driving ...
J Suresh Goud +7 more
doaj +1 more source
A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos
Annalen der Physik, Volume 538, Issue 3, March 2026.A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças +4 more
wiley +1 more source