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Poisson tau-method solvability conjecture on hypercubes
Poisson tau-method solvability conjecture. If $f\in\Pi_N^d$ and the tau polynomials $P_k$ span $\Pi_{N-2,N}^{(d)}$ , then the tau-modified equation
Conjectureopenpoisson-equation spectral-methods tau-methodarXiv posted 2 days ago

Poisson tau-method solvability conjecture on hypercubes