BEURLING VECTORS OF QUASIELLIPTIC SYSTEMS OF DIFFERENTIAL OPERATORS

RACHID CHAILI

DÉPATEMENT DE MATHÉMATIQUES, 
U.S.T.O. ORAN, ALGÉRIE..
E-Mail: chaili@univ-usto.dz

Received 12 May, 2003; Accepted 27 June, 2003.
Communicated by: D. Hinton

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