
A result of Koranyi that describes the structure of the space of polynomial solutions to the Heisenberg Laplacian operator is generalized to the canonical central systems on the block Heisenberg groups. These systems of differential operators generalize the Heisenberg Laplacian and, like it, admit large algebras of conformal symmetries. The main result implies that in most cases all polynomial solutions can be obtained from a single one by the repeated application of conformal symmetry operators.
module of polynomial solutions, Heisenberg Laplacian, dual $b$-function identity, 22E25, 22E47, 35R03, conformally invariant system, 35C11
module of polynomial solutions, Heisenberg Laplacian, dual $b$-function identity, 22E25, 22E47, 35R03, conformally invariant system, 35C11
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