Results 31 to 40 of about 148,924,303 (243)

Study on new integral operators defined using confluent hypergeometric function

open access: yesAdvances in Difference Equations, 2021
Two new integral operators are defined in this paper using the classical Bernardi and Libera integral operators and the confluent (or Kummer) hypergeometric function.
Georgia Irina Oros
doaj   +1 more source

Design of poiseuille flow controllers using the method of inequalities [PDF]

open access: yes, 2009
This paper investigates the use of the method of inequalities (MoI) to design output-feedback compensators for the problem of the control of instabilities in a laminar plane Poiseuille flow.
Whidborne, James F.   +2 more
core   +1 more source

Prabhakar Functions of Le Roy Type: Inequalities and Asymptotic Formulae

open access: yesMathematics, 2023
In this paper, the four-index generalization of the classical Le Roy function is considered on a wider set of parameters and its order and type are given.
Jordanka Paneva-Konovska
doaj   +1 more source

Pole Assignment for Active Vibration Control of Linear Vibrating Systems through Linear Matrix Inequalities

open access: yesApplied Sciences, 2020
This paper proposes a novel method for pole placement in linear vibrating systems through state feedback and rank-one control. Rather than assigning all the poles to the desired locations of the complex plane, the proposed method exactly assigns just the
Roberto Belotti   +3 more
doaj   +1 more source

On the controllability of a singular nonregular methaniser system

open access: yesScientific Reports, 2023
The control and command of singular systems of non-regular type pose very complex problems for automation engineers. The classic concepts of controllability are not applicable because of the non-regularity of the response of such systems whose internal ...
Zied Tmar, Taieb Wafi, Mongi Besbes
doaj   +1 more source

Jackson’s inequality in the complex plane and the Łojasiewicz–Siciak inequality of Green’s function

open access: yesJournal of Approximation Theory, 2016
We prove a generalization of Dunham Jackson's famous approximation inequality to the case of compact sets in the complex plane admitting both upper and lower bounds for their Green's functions, i.e. the well known Holder Continuity Property (HCP) and the less known but crucial Lojasiewicz-Siciak inequality (LS).
Białas-Cież, Leokadia   +1 more
openaire   +5 more sources

The Ptolemaean inequality in the closure of complexhyperbolic planes

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2017
11 ...
Platis, Ioannis D., Sonmez, Nilgun
openaire   +3 more sources

An inequality for length and volume in the complex projective plane [PDF]

open access: yesGeometriae Dedicata, 2020
10 pages; to appear in Geometriae ...
openaire   +2 more sources

Structured controller design for closed‐loop D‐stability in convex/non‐convex regions: Mixed integer‐linear programming approach

open access: yesIET Control Theory & Applications, 2021
Here it is assumed that the characteristic function of a linear control system, which is in the form of a polynomial and its coefficients are desired affine functions of unknown parameters of controller, is given.
Farshad Merrikh‐Bayat
doaj   +1 more source

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

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