Nonoscillation of Second‐Order Dynamic Equations with Several Delays

Elena Braverman and Başak Karpuz

Abstract and Applied Analysis, 2011, vol. 2011, issue 1

Abstract: Existence of nonoscillatory solutions for the second‐order dynamic equation (A0xΔ) Δ(t)+∑i∈[1,n] ℕAi(t)x(αi(t))=0 for t∈[t0,∞) 𝕋 is investigated in this paper. The results involve nonoscillation criteria in terms of relevant dynamic and generalized characteristic inequalities, comparison theorems, and explicit nonoscillation and oscillation conditions. This allows to obtain most known nonoscillation results for second‐order delay differential equations in the case A0(t) ≡ 1 for t ∈ [t0, ∞) ℝ and for second‐order nondelay difference equations (αi(t) = t + 1 for t ∈ [t0, ∞) ℕ). Moreover, the general results imply new nonoscillation tests for delay differential equations with arbitrary A0 and for second‐order delay difference equations. Known nonoscillation results for quantum scales can also be deduced.

Date: 2011
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https://doi.org/10.1155/2011/591254

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Persistent link: https://EconPapers.repec.org/RePEc:wly:jnlaaa:v:2011:y:2011:i:1:n:591254

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