2014
DOI: 10.1155/2014/978519
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About Positivity of Green's Functions for Nonlocal Boundary Value Problems with Impulsive Delay Equations

Abstract: The impulsive delay differential equation is considered (Lx)(t) = x′(t) + ∑i=1 m p i(t)x(t − τ i(t)) = f(t),  t ∈ [a, b], x(t j) = β j x(t j − 0),  j = 1,…, k,  a = t 0 < t 1 < t 2 < ⋯

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Cited by 9 publications
(4 citation statements)
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“…Existence of Green's function G 0 (t, s) for problem (2.9), (2.4) was discussed in [12]. On the basis of estimates of Green's function G 0 (t, s) of problem (2.9), (2.4), sufficient conditions of positivity of Green's function G(t, s) of nonlocal boundary value problems of the type (2.1)-(2.4) were obtained in [11]. In this paper we propose theorems about differential inequalities that allow us to obtain results about positivity/negativity of Green's function of the nonlocal boundary value problem (2.1)-(2.4) based only on sign-constancy of G 0 (t, s) and without knowledge of the explicit formula for G 0 (t, s).…”
Section: Resultsmentioning
confidence: 99%
“…Existence of Green's function G 0 (t, s) for problem (2.9), (2.4) was discussed in [12]. On the basis of estimates of Green's function G 0 (t, s) of problem (2.9), (2.4), sufficient conditions of positivity of Green's function G(t, s) of nonlocal boundary value problems of the type (2.1)-(2.4) were obtained in [11]. In this paper we propose theorems about differential inequalities that allow us to obtain results about positivity/negativity of Green's function of the nonlocal boundary value problem (2.1)-(2.4) based only on sign-constancy of G 0 (t, s) and without knowledge of the explicit formula for G 0 (t, s).…”
Section: Resultsmentioning
confidence: 99%
“…was considered. Positivity of Green's functions for the first order impulsive functional differential equations with nonlocal boundary conditions was studied in [15][16][17]. Nonlocal boundary value problems for systems of impulsive functional differential equations were considered in [6].…”
Section: Introductionmentioning
confidence: 99%
“…. 12 The existence of multiple solutions of the system (4.1) follows from Theorem 4.1. Then, for ρ 1 = 1/8, ρ 2 = 1 and ρ 3 = 11, we have (the constants that follow have been rounded to 2 decimal places unless exact) (1, 1, 1…”
mentioning
confidence: 95%
“…studied for example [12,20,28,31,32,34,41,44,49,50,53,54]. In the case of impulsive equations, nonlocal BCs have been studied by many authors, see for example [5,6,8,13,14,18,31,32,39,56] and references therein.…”
Section: Introductionmentioning
confidence: 99%