On the Discontinuity of Extreme Exponents of Oscillation on a Set of Linear Homogeneous Differential Systems
Author(s):
Aydamir Khazretovich Stash
Adyghe State University, Dean of the Faculty of Mathematics and Computer Science
aidamir.stash@gmail.com
Abstract:
In this paper, we study the questions of the
discontinuity of the extreme oscillation exponents on the set of
linear homogeneous differential systems with continuous
coefficients on the positive axis. The existence of points on a
set of differential systems is established in which all the higher
and lower exponents of the oscillation zeros, roots, and
hypercorns are not only not continuous, but are not continuous
either from above or from below. Moreover, the non-invariance of
the extreme exponent of oscillations with respect to
infinitesimal perturbations has been proved. When proving the
results of this work, the cases of parity and odd order of the
matrix of the system are considered separately.
Keywords
- differential equations
- exponents
- exponents of oscillation
- linear systems
- Lyapunov
- number of zeros
- oscillation
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