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Aug
19
comment Good 1st PDE book for self study
Consider it done.
Aug
19
revised Good 1st PDE book for self study
Added links.
Aug
19
answered Good 1st PDE book for self study
Aug
19
comment Measurable Functions behaviour on $\mathbb{R}^{2}$
What do you call a "better" example?
Aug
19
comment Measurable Functions behaviour on $\mathbb{R}^{2}$
Ah, yes, the function you construct is a common counterexample (In PDE), that I didn't think of that myself :). Nice! It looks correct to me. It is a different approach than mine, so I'm curious if mine works too.
Aug
18
comment Free introductory resources for learning algebra?
I assume you mean the version that isn't called "abstract algebra" and is about groups and such (Lang's book is about that) For self-study I'd suggest you take a look at the Schaum's series about algebra, they are cheap, full of examples and exercises.
Aug
18
revised Invariant Subspaces (Hardy Space)
added 121 characters in body; added 6 characters in body
Aug
18
answered Measurable Functions behaviour on $\mathbb{R}^{2}$
Aug
17
awarded  Supporter
Aug
17
awarded  Teacher
Aug
17
revised Is the closedness of the image of a Fredholm operator implied by the finiteness of the codimension of its image?
Using LaTeX.; added 6 characters in body; added 6 characters in body
Aug
17
answered Is the closedness of the image of a Fredholm operator implied by the finiteness of the codimension of its image?
Aug
14
awarded  Editor
Aug
14
revised Invariant Subspaces (Hardy Space)
added 82 characters in body
Aug
13
awarded  Student
Aug
12
asked Invariant Subspaces (Hardy Space)