Jonas Teuwen
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 Oct14 comment Fourier Series: Integral of a Sum or Sum of Integrals? This does not seem to answer the question. Oct14 answered Fourier Series: Integral of a Sum or Sum of Integrals? Oct2 asked On the regularity of the Laplace equations and tensor products and such Sep21 awarded Custodian Sep9 comment Tablet for reading textbooks and writing math by hand? Also, your drawings are pretty damn good if you don't have a stylus... Also with. Sep9 comment Tablet for reading textbooks and writing math by hand? As for the "taking with you". You can put the files in a dropbox folder and the iPad client synchronizes them when you need. Sep5 comment Completeness of BMO without duality to $H^1$ That's what I say. In the quotient space. Maybe a bit "strange", but all the constants are now in the class $[0]$. Whatever, just get rid of the average and work with those functions. Sep4 comment Completeness of BMO without duality to $H^1$ @AlexanderAmenta I'm not sure what the problem is. As I am a bit ill al the moment, I still have tried to add some information :-). The idea is that it can only be a Banach space if we have a full norm. That means we should divide out that constants. In practice this means that taking the quotient gives us the normal BMO-norm for non-constants and the constant itself for constants. So, you are fine by just considering functions with average 0. Then no worrying about equivalence classes. Sep4 revised Completeness of BMO without duality to $H^1$ added 3032 characters in body Sep4 comment Completeness of BMO without duality to $H^1$ In these things seminorms suck. Consider equivalence classes of functions that are the same up to an additive constant. Sep3 comment Completeness of BMO without duality to $H^1$ @AlexanderAmenta But you get it for every compact set, I don't understand the question. Aug18 comment Outer measure of a union of 2 subsets of disjoint measurable sets of real numbers. I like Byron's edit. Aug15 awarded Enlightened Aug15 awarded Nice Answer Aug12 awarded Yearling Aug5 awarded Self-Learner Jul30 comment Example of application of the Uniform Boundedness Principle Nice proof, but indeed: it can be done easier. However, you can also use BS to prove there exists a function such that the Fourier series diverges. Jul19 comment Advantage of accepting non-measurable sets @MichaelGreinecker The second part about probability theory seems to suggest to me that we are doing it wrong if we need to consider all the other events which are not even there. Do you know free probability? That takes the random variables as primitives. Jul19 comment A question about a proof of a weak form of Hilbert's Nullstellensatz Thanks for the link. I always wanted to learn more about commutative algebra and your writing style suits me very well (as in that you don't make it sound more fancy than it actually is for example). Jul4 comment Drying blood - an algorithm for calculating the geometry of blood stains @Rahul Maybe for pure mathematics, but it can surely be a good question for applied (and computational) mathematics where things are not so clearly defined. Maybe this is not the right forum?