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Results tagged with gn.general-topology
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user 78847
Continuum theory, point-set topology, spaces with algebraic structure, foundations, dimension theory, local and global properties.
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Almost periodic function and closed spaces
We denote $X_{T}$ the vector space of all $T$-periodic function with zero mean in $L^2$ ( we know that $X_{T}$ is spawn by $(e^{2i\pi nt/T})$). Let be $$X=X_{2\pi}+X_{3\pi}.$$
I think that $X_{2\pi}+X …
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