Abstract
We obtain new sufficient conditions under which the Cauchy problem for a system of linear functional-differential equations is uniquely solvable for arbitrary forcing terms. The conditions established are unimprovable in a certain sense.
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REFERENCES
N. V. Azbelev, V. P. Maksimov, and L. F. Rakhmatullina, Introduction to the Theory of Functional Differential Equations [in Russian], Nauka, Moscow (1991).
R. Hakl, A. Lomtatidze, and B. Půža, “On nonnegative solutions of first order scalar functional differential equations,” Mem. Different. Equat. Math. Phys., 23, 51–84 (2001).
I. A. Bakhtin, M. A. Krasnosel'skii, and V. Ya. Stetsenko, “On the continuity of linear positive operators,” Sib. Mat. Zh., 2, No. 1, 156–160 (1962).
M. A. Krasnosel'skii, Positive Solutions of Operator Equations, Noordhoff, Groningen (1964).
M. G. Krein and M. A. Rutman, “Linear operators leaving invariant a cone in a Banach space,” Usp. Mat. Nauk, 3, No. 1 (23), 3–95 (1948).
M. A. Krasnosel'skii, G. M. Vainikko, P. P. Zabreiko, Ya. B. Rutitskii, and V. Ya. Stetsenko, Approximate Solution of Operator Equations, Noordhoff, Groningen (1972).
V. Ya. Stetsenko, “Criteria of indecomposability of linear operators,” Usp. Mat. Nauk, 21, No. 5, 265–266 (1966).
F. Riesz and B. Sz.-Nagy, Le Leçons d'Analyse Fonctionelle, Akadémiai Kiadó, Budapest (1955).
B. Z. Vulikh, Introduction to the Theory of Semiordered Spaces [in Russian], Fizmatgiz, Moscow (1961).
N. Dunford and J. T. Schwartz, Linear Operators. I. General Theory, Interscience, London (1958).
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Ronto, A.N. Exact Solvability Conditions for the Cauchy Problem for Systems of First-Order Linear Functional-Differential Equations Determined by (σ1, σ2, ... , σ n ; τ)-Positive Operators. Ukrainian Mathematical Journal 55, 1853–1884 (2003). https://doi.org/10.1023/B:UKMA.0000027047.61698.48
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DOI: https://doi.org/10.1023/B:UKMA.0000027047.61698.48