Oscillations in Neutral Equations with Periodic Coefficients
| dc.contributor.author | Ladas, G. | en |
| dc.contributor.author | Philos, C. G. | en |
| dc.contributor.author | Sficas, Y. G. | en |
| dc.date.accessioned | 2015-11-24T17:27:20Z | |
| dc.date.available | 2015-11-24T17:27:20Z | |
| dc.identifier.issn | 0002-9939 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/13358 | |
| dc.rights | Default Licence | - |
| dc.subject | delay differential-equations | en |
| dc.subject | sufficient conditions | en |
| dc.title | Oscillations in Neutral Equations with Periodic Coefficients | en |
| heal.abstract | We obtain a necessary and sufficient condition for the oscillation of all solutions of the neutral delay differential equation: (1) d/dt[x(t) + px(t - tau)] + Q(t)x(t - sigma) = 0, where p is-an-element-of R, Q is-an-element-of C[[0, infinity), R+], Q is omega-periodic with omega > 0, Q(t) not-equal 0 for t greater-than-or-equal-to 0, and there exist positive integers n1 and n2 such that tau = n1-omega and sigma = n2-omega. More precisely we show that every solution of (1) oscillates if and only if every solution of an associated neutral equation with constant coefficients oscillates. | en |
| heal.access | campus | - |
| heal.fullTextAvailability | TRUE | - |
| heal.identifier.primary | Doi 10.2307/2048448 | - |
| heal.identifier.secondary | <Go to ISI>://A1991GG78400018 | - |
| heal.identifier.secondary | http://www.ams.org/journals/proc/1991-113-01/S0002-9939-1991-1045596-9/S0002-9939-1991-1045596-9.pdf | - |
| heal.journalName | Proceedings of the American Mathematical Society | en |
| heal.journalType | peer reviewed | - |
| heal.language | en | - |
| heal.publicationDate | 1991 | - |
| heal.publisher | American Mathematical Society | en |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μαθηματικών | el |
| heal.type | journalArticle | - |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.type.en | Journal article | en |
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