Category:Definitions/P-Sequence Spaces

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This category contains definitions related to $p$-sequence spaces.
Related results can be found in Category:P-Sequence Spaces.


Let $p \in \R$ be a real number such that $p \ge 1$.

Let $\BB$ be a Banach space.


The $p$-sequence space (in $\BB$), denoted $\ell^p$ or $\map {\ell^p} \N$, is defined as:

$\ds \ell^p := \set {\sequence {s_n}_{n \mathop \in \N} \in \BB^\N: \sum_{n \mathop = 0}^\infty \norm {s_n}^p < \infty}$

where:

$\BB^\N$ is the set of all sequences in $\BB$
$\norm {s_n}$ denotes the norm of $s_n$.