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user1110
  • Member for 2 years, 9 months
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The Schwartz space is not normable
@priel could you please elaborate a little more? I mean each of the functions are bounded, but why is the whole family bounded? And to conclude rel. comapctness don't we need equicontinuity as well?
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Regarding essential spectrum of the unilateral shift operator
Can I ask you @M.González why is the map invertible of $|\lambda| > 1$? I am trying to prove surjectivity but I am having trouble with it...
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Regarding essential spectrum of the unilateral shift operator
I have read the page en.wikipedia.org/wiki/Fredholm_operator but could not find this property :( Where is it?
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Regarding essential spectrum of the unilateral shift operator
Why does being injective and bound below imply that the map is not Fredholm?