Upper estimate for the norm of some matrix operators on the sequential weak lp space

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Gholamreza Talebi ◽  
Mohammad Ali Dehghan ◽  
Mohammad Soleymani
Keyword(s):  
Lp Space ◽  
Upper Estimate ◽  
Matrix Operators

Estimation of Firing Temperature and Compositional Variability of Archaeological Pottery by Differential Scanning Calorimetry

2004 ◽  
Vol 852 ◽  
Author(s):  
A. Giordana ◽  
E. Peacock ◽  
M. McCarthy ◽  
K. Guilbeau ◽  
P. Jacobs ◽  
...  
Keyword(s):  
Firing Temperature ◽  
Thermal Characterization ◽  
Small Sample ◽  
Scanning Calorimetry ◽  
Blind Test ◽  
Vitrification Temperature ◽  
Archaeological Pottery ◽  
Digital Scanning ◽  
Different Temperatures ◽  
Upper Estimate

ABSTRACTDigital Scanning Calorimetry (DSC), a thermal characterization technique, can be used to rapidly obtain a rough upper estimate of the firing temperature of archaeological pottery as well as an indication of its composition. The technique involves heating a small sample (10–20 mg) of ground ceramic above the vitrification temperature, cooling and reheating. The curves of the two heating cycles are then compared. The validity of the technique was evaluated by a blind test in which 35 tiles fired at different temperatures were analyzed without knowing their firing point, and by analysis of archaeological pottery samples assumed to be local or imported based upon stylistic criteria.

The Essential Spectrum of Some Matrix Operators

1994 ◽  
Vol 167 (1) ◽  
pp. 5-20 ◽  
Author(s):  
F. V. Atkinson ◽  
H. Langer ◽  
R. Mennicken ◽  
A. A. Shkalikov
Keyword(s):  
Essential Spectrum ◽  
Matrix Operators

scholarly journals Gyroaveraging operations using adaptive matrix operators

2018 ◽  
Vol 25 (5) ◽  
pp. 052304 ◽  
Author(s):  
Julien Dominski ◽  
Seung-Hoe Ku ◽  
Choong-Seock Chang
Keyword(s):  
Matrix Operators

scholarly journals Analyzation of Weak Convergence on Lp Space

2017 ◽  
Vol Volume-2 (Issue-1) ◽  
pp. 1142-1149
Author(s):  
Dr J. Ravi ◽  
S. Dickson ◽  
R. Ranjitha ◽  
Keyword(s):  
Weak Convergence ◽  
Lp Space

scholarly journals Rational interpolation of the function |x|α by an extended system of Chebyshev – Markov nodes

2020 ◽  
Vol 55 (4) ◽  
pp. 391-405
Author(s):  
E. A. Rovba ◽  
V. Yu. Medvedeva
Keyword(s):  
Rational Functions ◽  
Rational Interpolation ◽  
Asymptotic Equality ◽  
Fixed Number ◽  
Theoretical Research ◽  
Extended System ◽  
Uniform Approximations ◽  
Upper Estimate ◽  
Interpolation Functions ◽  
Interpolation Nodes

In this paper, we study the approximations of a function |x|α, α > 0 by interpolation rational Lagrange functions on a segment [–1,1]. The zeros of the even Chebyshev – Markov rational functions and a point x = 0 are chosen as the interpolation nodes. An integral representation of an interpolation remainder and an upper bound for the considered uniform approximations are obtained. Based on them, a detailed study is made:a) the polynomial case. Here, the authors come to the famous asymptotic equality of M. N. Hanzburg;b) at a fixed number of geometrically different poles, the upper estimate is obtained for the corresponding uniform approximations, which improves the well-known result of K. N. Lungu;c) when approximating by general Lagrange rational interpolation functions, the estimate of uniform approximations is found and it is shown that at the ends of the segment [–1,1] it can be improved.The results can be applied in theoretical research and numerical methods. 

scholarly journals Identification of nonlinear objects and control systems by using matrix operators

2014 ◽  
Author(s):  
Ю.П. Корнюшин ◽  
◽  
Н.Д. Егупов ◽  
П.Ю. Корнюшин ◽  
◽  
...  
Keyword(s):  
Control Systems ◽  
And Control ◽  
Matrix Operators
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