Partial differential equations having or
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Y.J. Kim; K.H. Kwon; J.K. Lee
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Article
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1998
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Elsevier Science
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English
β 717 KB
We show that if a second order partial differential equation: has orthogonal polynomial solutions, then the differential operator L[.] must be symmetrizable and can not be parabolic in any nonempty open subset of the plane. We also find Rodrigues type formula for orthogonal polynomial solutions of