Abstract
We denote by Br(x) or B(x, R) the open ball in ℝn with center x and radius R. We set Br:= Br(0). The (n—1)-dimensional unit sphere is denoted by Sn-1. The characteristic function of a given set M is denoted by χ M . We write D′ ⊂⊂ D for D′, D ⊂ ℝn if the closure of D′ is a compact subset of D. For any real number s, we set s+:= max(s, 0) and s_:= max(s, 0). We also denote ℝ+:=[0, ∞)
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© 2007 Birkhäuser Verlag AG
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(2007). Preliminaries. In: Superlinear Parabolic Problems. Birkhäuser Advanced Texts / Basler Lehrbücher. Birkhäuser Basel. https://doi.org/10.1007/978-3-7643-8442-5_1
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DOI: https://doi.org/10.1007/978-3-7643-8442-5_1
Publisher Name: Birkhäuser Basel
Print ISBN: 978-3-7643-8441-8
Online ISBN: 978-3-7643-8442-5
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