Results 31 to 40 of about 75 (70)

Computation of the zeros of a quaternionic polynomial using matrix methods

open access: yesArab Journal of Basic and Applied Sciences
In a recent paper, Ishfaq Dar (2024), worked on the problem of locating the zeros of quaternion polynomials by introducing various matrix techniques.
N. A. Rather   +4 more
doaj   +1 more source

Refinements of inequalities on extremal problems of polynomials

open access: yesOpen Mathematics
Let H(z) be a polynomial of degree n, and for any complex number α, let D α H(z) = nH(z) + (α − z)H′(z) denote the polar derivative of H(z) with respect to α.
Devi Maisnam Triveni   +2 more
doaj   +1 more source

Smale's Conjecture on Mean Values of Polynomials and Electrostatics [PDF]

open access: yes, 2007
2000 Mathematics Subject Classification: Primary 30C10, 30C15, 31B35.A challenging conjecture of Stephen Smale on geometry of polynomials is under discussion. We consider an interpretation which turns out to be an interesting problem on equilibrium of an
Dimitrov, Dimitar
core  

Crown ethers as stabilising ligands for oxonium ions

open access: yes, 2008
Oxonium ions (H(+)center dot(H(2)O)(n)) can be stabilised and isolated in the solid state by using crown ethers of differing sizes. Crown ethers can act as very good hydrogen bond acceptors for the binding of oxonium ions.
Junk, Peter C.
core   +1 more source

Improved versions of certain Bernstein and Turán-type inequalities on polynomials

open access: yesOpen Mathematics
In this paper, we establish some new results on Bernstein and Turán-type inequalities for polynomials on the unit circle on the complex plane by using an improved Schwarz Lemma at the boundary recently proved by Mercer.
Laishangbam Raju   +2 more
doaj   +1 more source

A generalization of an inequality of Zygmund

open access: yes, 1993
International Journal of Mathematics and Mathematical Sciences, Volume 16, Issue 2, Page 289-296, 1993.
R. Peretz
wiley   +1 more source

Hyperbolic Fourth-R Quadratic Equation and Holomorphic Fourth-R Polynomials [PDF]

open access: yes, 2012
MSC 2010: 30C10, 32A30, 30G35The algebra R(1; j; j2; j3), j4 = ¡1 of the fourth-R numbers, or in other words the algebra of the double-complex numbers C(1; j) and the corresponding functions, were studied in the papers of S. Dimiev and al. (see [1], [2],
Apostolova, Lilia N.
core  

A New Perspective on Adsorbent Materials Based Impregnated MgSiO3 with Crown Ethers for Palladium Recovery. [PDF]

open access: yesInt J Mol Sci, 2021
Ciopec M   +8 more
europepmc   +1 more source

On semiclassical linear functionals: the symmetric companion

open access: yes, 2002
17 pages, no figures.-- MSC2000 codes: Primary: 42C05; Secondary: 30C10.MR#: MR1931342 (2003h:42037)In this paper we analyze the symmetric companion of a quasi-definite linear functional.
Atia, Mohamed Jalel   +4 more
core  

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