Summary
A class of linear second order ordinary differential operators is considered, with bounded measurable coefficients. An optimal a priori estimate for such operators is determined, using variational techniques.
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Bibliografia
A. Lorenzi,On elliptic equation with piecewise constant coefficients, Applicable Analysis,2 (1972), pp. 79–96.
G. Hardy - J. Littlewood - G. Polya,Inequalities, Cambridge (1934).
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Entrata in Redazione il 12 febbraio 1975.
Lavoro eseguito nell'ambito del G.N.A.F.A. del C.N.R.
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Chiti, G. Una maggiorazione a priori dal punto di vista variazionale. Annali di Matematica 109, 221–233 (1976). https://doi.org/10.1007/BF02416961
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DOI: https://doi.org/10.1007/BF02416961