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Solutions of type \(r^ m \)for a class of singular equations. (English) Zbl 0492.35003


MSC:

35A08 Fundamental solutions to PDEs
35J99 Elliptic equations and elliptic systems
35B05 Oscillation, zeros of solutions, mean value theorems, etc. in context of PDEs
35L99 Hyperbolic equations and hyperbolic systems
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