An invariant measuring the irregularity of a differential operator and a microdifferential operator
type: Item
instance of: scholarly article
title: An invariant measuring the irregularity of a differential operator and a microdifferential operator
zbMATH Open document ID: 0451.35006
author: Takashi Aoki
published in: Journal de Mathématiques Pures et Appliquées. Neuvième Série
publication date: 1982-01-01T00:00:00Z
Mathematics Subject Classification ID: 35A20
Mathematics Subject Classification ID: 35S05
Mathematics Subject Classification ID: 35R20
Mathematics Subject Classification ID: 34M99
Mathematics Subject Classification ID: 47Gxx
zbMATH DE Number: 3705060
zbMATH Keywords: differential operator
zbMATH Keywords: microdifferential operator
zbMATH Keywords: characteristic variety
zbMATH Keywords: De Paris decomposition
zbMATH Keywords: De Paris function
zbMATH Keywords: irregularity
zbMATH Keywords: Gerard- Levelt invariants
zbMATH Keywords: Komatsu irregularity
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 3705060