Zobrazeno 1 - 10
of 83
pro vyhledávání: '"I.K. Purnaras"'
Publikováno v:
Nonlinear Analysis: Theory, Methods & Applications. 75:3277-3291
This paper, together with a recent paper by the second author on convex singular kernels, establishes a base for further investigation of mildly singular equations with Liapunov theory. We study the two nonlinear scalar integral equations x ( t ) = a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b9cbbd804294d2b846e286111d41b12
https://doi.org/10.1016/j.na.2011.10.050
https://doi.org/10.1016/j.na.2011.10.050
Publikováno v:
Nonlinear Analysis: Theory, Methods & Applications. 59:1157-1179
This article is concerned with solutions that behave asymptotically like polynomials for nth order (n > 1) nonlinear ordinary differential equations. For each given integer m with 1 less than or equal to m less than or equal to n - 1, sufficient cond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d7bb32cf48d1e1badf37627ddda7e63
https://doi.org/10.1016/j.na.2004.08.011
https://doi.org/10.1016/j.na.2004.08.011
Autor:
I.K. Purnaras, Ch. G. Philos
Publikováno v:
Applied Mathematics and Computation. 117:203-222
Some new asymptotic and stability results are given for a first order linear neutral delay differential equation with periodic coefficients and constant delays. The asymptotic behavior of the solutions and the stability of the trivial solution are de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::239de71099f8064ff50cb539760dc51b
https://doi.org/10.1016/s0096-3003(99)00174-5
https://doi.org/10.1016/s0096-3003(99)00174-5
Autor:
I.K. Purnaras
By the use of a Guo-Krasnoselskii theorem in cones, existence of positive eigenvalues yielding nonnegative/positive solutions to the discrete equation[image omitted]is studied. The results are applied to boundary value problems of various types. Jour
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cefdafc403c3b4721984a4e17009b32a
http://olympias.lib.uoi.gr/jspui/handle/123456789/12748
http://olympias.lib.uoi.gr/jspui/handle/123456789/12748
Autor:
I.K. Purnaras, Ch. G. Philos
Publikováno v:
Archiv der Mathematik. 59:260-271
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcc6a42e86fd6bfc05cd7b2cc4942ce7
https://doi.org/10.1007/bf01197323
https://doi.org/10.1007/bf01197323
Autor:
Ch. G. Philos, I.K. Purnaras
Publikováno v:
Journal of Applied Mathematics and Stochastic Analysis, Vol 4, Iss 3, Pp 241-257 (1991)
A class of linear difference equations with variable coefficients is considered. Sufficient conditions and necessary conditions for the oscillation of the solutions are established. In the special cases where the coefficients are constant or periodic
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11134f0d739e8e32dc06a1597ea554fa
https://doaj.org/article/421a5107960841a39803b152a95ebca0
https://doaj.org/article/421a5107960841a39803b152a95ebca0
Akademický článek
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We consider the (nonlinear) difference equation x n = a + ∑ k=1 m b k x n −k , n = 0,1,2… where a and bk (k = 1, 2, …, m) are nonnegative numbers with B ≡ ∑mk = 1bk > 0, and we are interested in whether all positive solutions are attracte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fec37fbf4acdf545d5fec20b5b755773
http://olympias.lib.uoi.gr/jspui/handle/123456789/12879
http://olympias.lib.uoi.gr/jspui/handle/123456789/12879
Akademický článek
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Akademický článek
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