BK-space

In functional analysis and related areas of mathematics, a BK-space or Banach coordinate space is a sequence space endowed with a suitable norm to turn it into a Banach space. All BK-spaces are normable FK-spaces.^[1]

Examples

the space of convergent sequences $c$ , the space of null sequences $c_0$ and the space of bounded sequences $l^\infty$ under the supremum norm $\|\cdot\|_{\infty}$ ^[1]
the space of absolutely p-summable sequences $l^p$ with $p \ge 1$ and the norm $\|\cdot\|_p$ ^[1]

References

↑ 1.0 1.1 1.2 Banas, Jozef; Mursaleen, M. (2014), Sequence Spaces and Measures of Noncompactness with Applications to Differential and Integral Equations, Springer, p. 20, ISBN 9788132218869 .