Particular Solutions of a Class of Partial Differential Equations with Variate Coefficients and Invariant Properties
Received:November 30, 1983  
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Lie Zibin Lanzhou University 
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      In this paper, a few properties of general patial differential operator P beinginvariant with respect to the form F(|x|pp+|y|qq-|z|rr) are studied, where x∈Rn,y∈ Rm, z∈Rl.and explicit formulas are given for certain solution of the equation Pu=Aδ with P being a differential operator with power function coefficientswhich preserves the form (|x|pp+|y|qq-|z|rr)1/v for arbitrary even integers p, q, r,and odd integers v.
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