paper

A characterization of the individual maximum and anti-maximum principle

arXiv:2203.05680 · doi:10.1007/s00209-023-03348-w

Abstract

Abstract approaches to maximum and anti-maximum principles for differential operators typically rely on the condition that all vectors in the domain of the operator are dominated by the leading eigenfunction of the operator. We study the necessity of this condition. In particular, we show that under a number of natural assumptions, so-called individual versions of both the maximum and the anti-maximum principle simultaneously hold if and only if the aforementioned domination condition is satisfied. Consequently, we are able to show that a variety of concrete differential operators do not satisfy an anti-maximum principle.

16 pages. This is version 2. Minor changes compared to version 1

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