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] The space of convergent sequences
the space of vanishing sequences
and the space of bounded sequences
[1] The space of absolutely p-summable sequences
[1] This mathematical analysis–related article is a stub.