Lemma 4.5 . [03H9]

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Lemma 4.5.

The Wronskian is a constant given by

(4.48)

\mathcal{W}(\mathcal{F},\mathcal{U})=2^{-h}\sqrt{j\pi}\Gamma(h+1)>0.

In particular, $\mathcal{F}$ and $\mathcal{U}$ are linearly independent.