Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)



Singular solutions for a class
of Grusin type operators

Authors: Nicholas Hanges and A. Alexandrou Himonas
Journal: Proc. Amer. Math. Soc. 124 (1996), 1549-1557
MSC (1991): Primary 35H05
MathSciNet review: 1307525
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Abstract: We construct singular solutions for a one-parameter family of partial differential equations with double characteristics and with complex lower order terms. The parameter belongs to a discrete set which is described in terms of the spectrum of a related differential operator.

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Additional Information

Nicholas Hanges
Affiliation: Department of Mathematics, Herbert H. Lehman College-CUNY, Bronx, New York 10468-1589

A. Alexandrou Himonas
Affiliation: Department of Mathematics, University of Notre Dame, Notre Dame, Indiana 46556

Keywords: Eigenvalue, eigenfunction, concatenations, hypoellipticity, double characteristics
Received by editor(s): October 14, 1994
Received by editor(s) in revised form: November 14, 1994
Additional Notes: The first author was partially supported by NSF Grant DMS 91-04569.
The second author was partially supported by NSF Grant DMS 91-01161.
Communicated by: Jeffrey Rauch
Article copyright: © Copyright 1996 American Mathematical Society