Remarks On Convexity With Respect To Operators Of Real Principal Type

Lars Hörmander ()
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Lars Hörmander: Lund University

Chapter Chapter 15 in Unpublished Manuscripts, 2018, pp 108-113 from Springer

Abstract: Abstract P-convexity with respect to singular supports has been completely characterized in geometrical terms when P is an operator of principal type. (See [2, section 1.4].) However, no satisfactory geometrical interpretation of P-convexity (with respect to supports) is known even when P is of real principal type as we shall assume throughout this paper.

Date: 2018
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DOI: 10.1007/978-3-319-69850-2_15

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