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Sep
13
comment understanding the orientation sheaf
thank you for your response. Is there any good lectures on the subject ?
Feb
23
comment Trapezoid rule error analysis
Btw, I think that finding that c such that ∫f(x)dx=−1/12*f″(c)(b−a)^3, fails for the identity function
Feb
23
comment Trapezoid rule error analysis
Guess that, if true, when ∫f(x)dx relates to f″(c), it basically says that (just for purpose, assuming that f is C^3), for any such function there exists c such that : f'''(c) =-12(b-a)^(-3)*(f(b)-f(a))
Aug
26
comment Explicit counter-example to corona problem
This page is related with the subject but there is no link to a counter-example