Abstract
We prove that every 2-homogeneous polynomial on the complex c 0 has a unique normpreserving extension to its bidual ℓ∞.
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Lin, PK. Extensions of 2-homogeneous polynomials on c 0 . Acta. Math. Sin.-English Ser. 24, 877–880 (2008). https://doi.org/10.1007/s10114-007-5636-8
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DOI: https://doi.org/10.1007/s10114-007-5636-8