References
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- In the formula 12. 7. 1 page 209 of reference 1, the extra factor 1/2 is not correct – it should be 1. In the footnote page 198, one should read (3. 12. 15) instead of (3. 2. 5). In pages (198) and (199), we used the fact that some sequences belong to ℓ1 ∩ ℓ2 but we only said that they belong to ℓ2. Sorry