Stupen, Roman Ryzhok, Zoriana Stupen, Nazar Stupen, Oksana

The paper reveals the method of work in the geoinformation system Crop Monitoring on the basis of satellite monitoring data on the example of comparison of two neighboring land uses outside Bortkiv village council of Zolochiv district of Lviv region. One has determined the size of the areas of crops of winter cereals and deduced the dependence betw...

Zaky, Yasmina Fortino, Nicolas Dauvignac, Jean-Yves Seyfert, F. Olivi, M. Baratchart, L.

In this paper, different techniques for SEM poles estimation from the scattered response of an object are explored. Cauchy method and Matrix Pencil are widely used within this field, whereas Vector Fitting method is not often deployed for radar applications. Consequently, we evaluate the accuracy of these techniques applied to the simulated back-sc...

Roussafi, Abdellah Fortino, Nicolas Dauvignac, Jean-Yves

The purpose of this letter is to model the three-dimensional radiation pattern of an ultrawideband antenna in near-field region. This compacting process can be established by combining spherical vector wave expansion and Cauchy methods. Spherical basis possesses the advantage of handling both radial and angular behavior, whereas the Cauchy method a...

Razpet, Marko

Seyfert, Fabien Oldoni, Matteo Macchiarella, Giuseppe Pacaud, Damien

In this article, we present two methods to de-embed the filters' responses from a diplexer whose junction is known. A weak identification problem is here described by means of a dual-state junction and can be applied for general diagnosis of prototype diplexers. A strong identification problem based on rationality of the filters is also introduced ...

sabbah, a.s. abdou, m.a. ismail, a.s.

In the present paper, we apply the complex variable method (Cauchy method) to derive exact expressions for the Goursat's functions for the boundary value problem of infinite plate weakened by a curvilinear hole. The hole is conformally mapped on the domain outside a unit circle by means of a general rational mapping function. Also the stress compon...

Penot, Jean-Paul
Published in
Computational Optimization and Applications

It is proved that any cluster point of a sequence defined by a steepest descent algorithm in a general normed vector space is a critical point. The function is just assumed to be continuously differentiable. The class of algorithms we consider encompasses several choices such as the Cauchy steplength and the Curry steplength.

El-Bary, A. A.
Published in
Korean Journal of Computational and Applied Mathematics

Complex variable methods are used to solve the first and the second fundamental problems for infinite plate with two holes having arbitrary shapes which are conformally mapped on the domain outside of the unit circle by means of rational mapping function. Some applications are investigated and some special cases are derived.

Gonzaga, C. C.
Published in
Journal of Optimization Theory and Applications

We discuss two issues related to the Cauchy algorithm. First, we use anArmijo search with constant α≥0.5 and show that the sequence isFejer convergent to the optimal set, and hence convergent. Second, we useexact line searches and show an example in which the sequence fails toconverge.