Results 11 to 20 of about 111,755 (250)

Implementations of Full State Feedback Robust Control Designs for Mechanical Systems Using Only Positions or Velocities Output Feedback

open access: yesIEEE Access, 2022
This paper proposes a new design and practical implementation of a robust ${\mathcal H}_{\infty }$ control applied to some mechanical systems considering in the controller design full access to the state variables and in the equivalent controller ...
Lucas M. Esteves   +6 more
doaj   +1 more source

Some differential inequalities in the complex plane

open access: yesFilomat, 2017
In the present paper, we obtain some new results by applying well-known Jack?s lemma. Moreover, the second-order differential subordinations associated with convex functions are also considered.
Nunokawa, Mamoru   +4 more
openaire   +3 more sources

Tlacoqualli in Monequi "The Center Good"

open access: yesVoices in Bioethics, 2022
Photo by Andrew James on Unsplash INTRODUCTION Since its inception, bioethics has focused on Western conceptions of ethics and science. This has provided a strong foundation to build bioethics as a field and discipline.
Ried Mackay
doaj   +1 more source

MATHEMATICAL MODEL OF RESONATOR CHAINS IN EXTERNAL MAGNETIC FIELD [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.The paper considers a spectral problem for chains of weakly coupled ball-shaped resonators under the action of an external magnetic field. Two basic geometries are studied composed of identical resonators: the chain with a single kink
A. S. Melikhova
doaj   +1 more source

Eigenvalue bounds of the shift-splitting preconditioned singular nonsymmetric saddle-point matrices

open access: yesJournal of Inequalities and Applications, 2016
For singular nonsymmetric saddle-point problems, a shift-splitting preconditioner was studied in (Appl. Math. Comput. 269:947-955, 2015). To further show the efficiency of the shift-splitting preconditioner, we provide eigenvalue bounds for the nonzero ...
Quan Shi, Qin-Qin Shen, Lin-Quan Yao
doaj   +1 more source

Certain nth Order Differential Inequalities in the Complex Plane [PDF]

open access: yesCanadian Mathematical Bulletin, 1978
AbstractLet w(z) be regular in the unit disc U:|z|<l, with w(0) = 0 and let h(r, s, t) be a complex function defined in a domain D of C3. The author determines conditions on h such that ifz∈U, then |w(z)|< 1 for z ∈ U and n= 0, 1, 2, …. Here Dnw(z) = (z/(l-z)n+1*w(z), where * stands for the Hadamard product (convolution). Some applications of the
openaire   +1 more source

Applications of Inequalities in the Complex Plane Associated with Confluent Hypergeometric Function [PDF]

open access: yesSymmetry, 2021
The idea of inequality has been extended from the real plane to the complex plane through the notion of subordination introduced by Professors Miller and Mocanu in two papers published in 1978 and 1981. With this notion came a whole new theory called the theory of differential subordination or admissible functions theory.
openaire   +1 more source

S. N. Bernstein Type Estimations in the Mean on the Curves in a Complex Plane

open access: yesAbstract and Applied Analysis, 2009
The present paper discusses in the metric Lp S. N. Bernstein type inequalities of the most general kind on very general accessible classes of curves in a complex plane. The obtained estimations, generally speaking, are not improvable.
J. I. Mamedkhanov, I. B. Dadashova
doaj   +1 more source

The Ptolemaean inequality in the closure of complexhyperbolic planes

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2017
11 ...
Platis, Ioannis D., Sönmez, Nilgün
openaire   +2 more sources

On the Number of Ordinary Lines Determined by Sets in Complex Space [PDF]

open access: yes, 2017
Kelly\u27s theorem states that a set of n points affinely spanning C^3 must determine at least one ordinary complex line (a line passing through exactly two of the points).
Basit, Abdul   +3 more
core   +1 more source

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