Polynomially Reflexive Space

In mathematics, a polynomially reflexive space is a Banach space X, on which the space of all polynomials in each degree is a reflexive space.

Given a multilinear functional Mn of degree n (that is, Mn is n-linear), we can define a polynomial p as

(that is, applying Mn on the diagonal) or any finite sum of these. If only n-linear functionals are in the sum, the polynomial is said to be n-homogeneous.

We define the space Pn as consisting of all n-homogeneous polynomials.

The P1 is identical to the dual space, and is thus reflexive for all reflexive X. This implies that reflexivity is a prerequisite for polynomial reflexivity.

Read more about Polynomially Reflexive Space:  Relation To Continuity of Forms, Examples

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