About Asymptotic and Oscillation Properties of the Dirichlet Problem for Delay Partial Differential Equations

Verfasser / Beitragende:
[Alexander Domoshnitsky]
Ort, Verlag, Jahr:
2003
Enthalten in:
Georgian Mathematical Journal, 10/3(2003-09), 495-502
Format:
Artikel (online)
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024 7 0 |a 10.1515/GMJ.2003.495  |2 doi 
035 |a (NATIONALLICENCE)gruyter-10.1515/GMJ.2003.495 
100 1 |a Domoshnitsky  |D Alexander  |u The College of Judea and Samaria, Ariel 44837, Israel. E-mail: adom@research.yosh.ac.il 
245 1 0 |a About Asymptotic and Oscillation Properties of the Dirichlet Problem for Delay Partial Differential Equations  |h [Elektronische Daten]  |c [Alexander Domoshnitsky] 
520 3 |a In this paper, oscillation and asymptotic properties of solutions of the Dirichlet boundary value problem for hyperbolic and parabolic equations are considered. We demonstrate that introducing an arbitrary constant delay essentially changes the above properties. For instance, the delay equation does not inherit the classical properties of the Dirichlet boundary value problem for the heat equation: the maximum principle is not valid, unbounded solutions appear while all solutions of the classical Dirichlet problem tend to zero at infinity, for "narrow enough zones” all solutions oscillate instead of being positive. We establish that the Dirichlet problem for the wave equation with delay can possess unbounded solutions. We estimate zones of positivity of solutions for hyperbolic equations. 
540 |a © Heldermann Verlag 
690 7 |a Delay partial differential equations  |2 nationallicence 
690 7 |a oscillation  |2 nationallicence 
690 7 |a zone of positivity  |2 nationallicence 
690 7 |a unboundedness of solutions  |2 nationallicence 
773 0 |t Georgian Mathematical Journal  |d Walter de Gruyter GmbH & Co. KG  |g 10/3(2003-09), 495-502  |x 1072-947X  |q 10:3<495  |1 2003  |2 10  |o GMJ 
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950 |B NATIONALLICENCE  |P 100  |E 1-  |a Domoshnitsky  |D Alexander  |u The College of Judea and Samaria, Ariel 44837, Israel. E-mail: adom@research.yosh.ac.il 
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