On the nonnegativity of Green's functions.
Richard Bellman (1963)
Bollettino dell'Unione Matematica Italiana
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Richard Bellman (1963)
Bollettino dell'Unione Matematica Italiana
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A. Farina, L. Fusi (2005)
Bollettino dell'Unione Matematica Italiana
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In this paper we consider a two-phase one-dimensional free boundary problem for the heat equation, arising from a mathematical model for a Bingham-like fluid with a visco-elastic core. The main feature of this problem consists in the very peculiar structure of the free boundary condition, not allowing to use classical tools to prove well posedness. Existence of classical solution is proved using a fixed point argument based on Schauder's theorem. Uniqueness is proved using a technique...
G. G. Legatos (1966)
Bollettino dell'Unione Matematica Italiana
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Aurel Wintner (1956)
Bollettino dell'Unione Matematica Italiana
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Luigi Castoldi (1949)
Bollettino dell'Unione Matematica Italiana
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