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MATHEMATICA BOHEMICA, Vol. 125, No. 1, pp. 39-54 (2000)
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# A generalized maximum principle for boundary value problems for degenerate parabolic operators with discontinuous coefficients

## Salvatore Bonafede, Francesco Nicolosi

* Salvatore Bonafede*, Dipartimento di Economia dei Sistemi Agro-Forestali, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy;

* Francesco Nicolosi*, Department of Mathematics, University of Catania, Viale A. Doria 6, 95125 Catania, Italy

**Abstract:**
We prove a generalized maximum principle for subsolutions of boundary value problems, with mixed type unilateral conditions, associated to a degenerate parabolic second-order operator in divergence form.

**Keywords:** weak subsolution, generalized maximum principle, comparison theorem, degenerate equation

**Classification (MSC2000):** 35B50, 35K10, 35K65, 35K85

**Full text of the article:**

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