Vol. 138, No. 2, 1989

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Propagation of hypo-analyticity along bicharacteristics

Shiferaw Berhanu

Vol. 138 (1989), No. 2, 221–232
Abstract

It is shown here the hypo-analytic singularities for solutions propagate along the bicharacteristics of hypo-analytic differential operators of principal type. This generalizes the well-known similar result for analytic differential operators.

Mathematical Subject Classification 2000
Primary: 35A20
Secondary: 35B65, 35D10
Milestones
Received: 30 November 1987
Revised: 17 May 1988
Published: 1 June 1989
Authors
Shiferaw Berhanu