Note on some integral Volterra equations.
W. Okrasinski (1993)
Extracta Mathematicae
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W. Okrasinski (1993)
Extracta Mathematicae
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Mydlarczyk, W. (2001)
Journal of Inequalities and Applications [electronic only]
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G. Karakostas (1987)
Colloquium Mathematicae
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Bogdan Rzepecki (1976)
Annales Polonici Mathematici
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Wojciech Mydlarczyk (1996)
Annales Polonici Mathematici
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We study the equation u = k∗g(u) with k such that ln k is convex or concave and g is monotonic. Some necessary and sufficient conditions for the existence of nontrivial continuous solutions u of this equation are given.
W. Okrasinski (1989)
Extracta Mathematicae
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K. Orlov, M. Stojanović (1974)
Matematički Vesnik
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R. Smarzewski (1976)
Applicationes Mathematicae
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M. Niedziela (2008)
Applicationes Mathematicae
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The behaviour near the origin of nontrivial solutions to integral Volterra equations with a power nonlinearity is studied. Estimates of nontrivial solutions are given and some numerical examples are considered.
Jesús M. Fernández Castillo, W. Okrasinski (1991)
Extracta Mathematicae
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In mathematical models of some physical phenomena a new class of nonlinear Volterra equations appears ([5],[6]). The equations belonging to this class have u = 0 as a solution (trivial solution), but with respect to their physical meaning, nonnegative nontrivial solutions are of prime importance.
W. Mydlarczyk (1991)
Annales Polonici Mathematici
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W. Okrasinski (1989)
Extracta Mathematicae
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Tvrdý, Milan (1997)
Memoirs on Differential Equations and Mathematical Physics
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