The cohomology of the projective ๐-plane
The cohomology of the projective ๐-plane
An <italic>H</italic>-space is a topological space with a continuous multiplication and an identity element. In this paper <italic>X</italic> has the homotopy type of a countable CW-complex with integral cohomology of finite type and primitively generated <italic>k</italic>-cohomology, <italic>k</italic> a field. The projective <italic>n</italic>-plane of <italic>X</italic> is denoted <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" โฆ