Use of polynomials in localization problems for continuous dynamical systems

Autor: Kh. M. Ramazanova, A. N. Kanatnikov
Rok vydání: 2016
Předmět:
Zdroj: Differential Equations. 52:1557-1562
ISSN: 1608-3083
0012-2661
DOI: 10.1134/s001226611612003x
Popis: We study polynomials as localizing functions in localization problems. To obtain a nontrivial localizing set, we use the property of sign definiteness of a polynomial. We obtain necessary and sufficient conditions for the sign definiteness of polynomials as well as conditions under which the level surfaces of a polynomial are compact.
Databáze: OpenAIRE