Results 31 to 40 of about 493,296 (323)

UNIVALENCE OF HARMONIC FUNCTIONS, PROBLEM OF PONNUSAMY AND SAIRAM, AND CONSTRUCTIONS OF UNIVALENT POLYNOMIALS

open access: yesПроблемы анализа, 2014
The criteria of the univalence of a harmonic mapping is obtained in this paper. Particularly, it permits to formulate the hypothesis of the harmonic function classes equality S 0 H = S 0 H(S) (hypothesis of Ponnusamy and Sairam), in analytic form.
Starkov
doaj   +1 more source

On a subclass of analytic functions involving harmonic means

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2015
In the present paper, we consider a generalised subclass of analytic functions involving arithmetic, geometric and harmonic means. For this function class we obtain an inclusion result, Fekete-Szegö inequality and coefficient bounds for bi-univalent ...
Tudor Andreea-Elena, Rǎducanu Dorina
doaj   +1 more source

Optimal bounds for Seiffert-like elliptic integral mean by harmonic, geometric, and arithmetic means

open access: yesJournal of Inequalities and Applications, 2022
In this article, we present the optimal bounds for a special elliptic integral mean in terms of the harmonic combinations of harmonic, geometric, and arithmetic means.
Fan Zhang, Weimao Qian, Hui Zuo Xu
doaj   +1 more source

Scaling of the dynamics of flexible Lennard-Jones chains. II. Effects of harmonic bonds [PDF]

open access: yes, 1996
The previous paper [Veldhorst et al., J. Chem. Phys. 141, 054904 (2014)] demonstrated that the isomorph theory explains the scaling properties of a liquid of flexible chains consisting of ten Lennard-Jones particles connected by rigid bonds.
Veldhorst, Arno A.   +2 more
core   +5 more sources

Optimal Inequalities between Harmonic, Geometric, Logarithmic, and Arithmetic-Geometric Means

open access: yesJournal of Applied Mathematics, 2011
We find the least values p, q, and s in (0, 1/2) such that the inequalities H(pa+(1 − p)b, pb+(1 − p)a)>AG(a,b), G(qa+(1−q)b, qb+(1−q)a)>AG(a,b), and L(sa+(1−s)b,sb+(1−s)a)> AG(a,b) hold for all a,b>0 with a≠b, respectively. Here AG(a,b), H(a,b), G(a,b),
Yu-Ming Chu, Miao-Kun Wang
doaj   +1 more source

A harmonic/anharmonic energy partition method for lattice statics computations [PDF]

open access: yes, 1993
A method of lattice statics analysis is developed. Consideration of anharmonic effects is restricted to finite regions surrounding lattice defects.
Gallego, Rafael, Ortiz, Michael
core   +1 more source

A Sharp Double Inequality between Harmonic and Identric Means

open access: yesAbstract and Applied Analysis, 2011
We find the greatest value p and the least value q in (0,1/2) such that the double inequality H(pa+(1-p)b,pb+(1-p)a)
Yu-Ming Chu, Miao-Kun Wang, Zi-Kui Wang
doaj   +1 more source

PT Symmetric Schr\"odinger Operators: Reality of the Perturbed Eigenvalues [PDF]

open access: yes, 2010
We prove the reality of the perturbed eigenvalues of some PT symmetric Hamiltonians of physical interest by means of stability methods. In particular we study 2-dimensional generalized harmonic oscillators with polynomial perturbation and the one ...
Caliceti, Emanuela   +2 more
core   +5 more sources

Nonlinear oscillators under delay control

open access: yesVietnam Journal of Mechanics, 2000
In this paper, oscillations and stability of nonlinear oscillators with time delay are studied by means of the asymptotic method of nonlinear mechanics.
Nguyen Van Dao
doaj   +1 more source

Two Sharp Inequalities for Power Mean, Geometric Mean, and Harmonic Mean [PDF]

open access: yesJournal of Inequalities and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xia Wei-Feng, Chu Yu-Ming
openaire   +3 more sources

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