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.
Examples
The space of [convergent sequences] the space of [vanishing sequences] and the space of [bounded sequences] under the supremum normThe space of absolutely p-summable sequences with and the norm