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Modal Tracking Based on Group Theory
The tracking of characteristic modes is solved based on group theory. Recent to the acceleration of the calculation and precise tracking of eigenmodes. The current understanding of tracking issues is broadened and the neces...
Electrical and electronic engineering
- 2018 •
- D
Rok uplatnění
D - Stať ve sborníku
Modal Tracking Based on Group Theory
Issues in modal tracking in the presence of crossings and crossing avoidances between eigenvalue traces are solved via the theory of point groups. The von~Neumann parametrized eigenvalue problems. A treatment of modal degen...
Electrical and electronic engineering
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
A Method for Tracking Characteristic Numbers and Vectors
A new method for tracking characteristic numbers and vectors appearing in the Characteristic Mode Theory is presented in this paper. The challenge here problem might be ill-posed and non-uniquely dened as well. Hence an advanced tracking...
JA - Elektronika a optoelektronika, elektrotechnika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Design of Closely Spaced Dipole Array Based on Characteristic Modes
, the methods for eigenvalue tracking are essential. Proposed eigenvalue perturbation method that provide a set of eigenvectors and eigenvalues, which are determined entirely......
Electrical and electronic engineering
- 2017 •
- D
Rok uplatnění
D - Stať ve sborníku
Modal Crossing Treatment Using Group Theory
Detecting modal crossings and crossing avoidances between eigenvalue traces in modal tracking is solved based on group theory. Rules based on the presence of symmetry are applied to predictively determine mode behavior over a freque...
Electrical and electronic engineering
- 2019 •
- D
Rok uplatnění
D - Stať ve sborníku
An Eigenvalue Symmetric Matrix Contractor
We propose an eigenvalue contractor for symmetric matrices. Given a symmetric interval matrix A and an interval approximation of its eigenvalue sets the contractor reduces the entries of A such that no matrix with eigenvalues
BD - Teorie informace
- 2011 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Estimates of the principal eigenvalue of the p-Laplacian
We provide estimates from below and from above for the principal eigenvalue of the p-Laplacian on a bounded domain. We apply these estimates to study the asymptotic behavior of the principal eigenvalue for p ? +oo....
BA - Obecná matematika
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Half-linear eigenvalue problem: Limit behavior of the first eigenvalue for shrinking interval
We investigate the limit behavior of the first eigenvalue of the half-linear eigenvalue problem when the length of the interval tends to zero. We show that the important role is played by the limit behavior of ratios of primitive fu...
BA - Obecná matematika
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
On the Variational Eigenvalues Which Are Not of Ljusternik-Schnirelmann Type
We discuss nonlinear homogeneous eigenvalue problems and the variational characterization of their eigenvalues. We focus on the Ljusternik-Schnirelmann method, present-Fischerminimaxprinciple in the linear case. At the end we presen...
BA - Obecná matematika
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
The ratio of eigenvalues of the Dirichlet eigenvalue problem for equations with one-dimensional p-Laplacian
We establish an estimate for the ratio of eigenvalues of the Dirichlet eigenvalue problem for the equation with one-dimensional p-Laplacian involving a nonnegative unimodal (single-well) potential....
BA - Obecná matematika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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