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Oct 7, 2010 at 22:12 comment added Willie Wong @Hans Lundmark: I fixed the typo in the title of the question. Unfortunately there is still the issue of the first sentence of the second paragraph....
Oct 7, 2010 at 22:11 history edited Willie Wong CC BY-SA 2.5
edited title
Oct 7, 2010 at 19:31 comment added Hans Lundmark Not that it's a big deal, but "regularity" is misspelt in the title of your question.
Oct 7, 2010 at 17:45 comment added Deane Yang What about more advanced students who have already passed the exam? You have been asking very good, interesting, but often difficult questions that many of us already with phds and published papers can't answer. You should really try to get a better sense of what is expected of you so you don't expend too much effort things that you don't need to know. Also, could you clarify the question above?
Oct 7, 2010 at 16:57 comment added Dorian And I find in these types of situations that ultimately someone with more experience is needed (even though the question appears elementary). I have indeed discussed this with some other students but we didn't make a concrete conclusion.
Oct 7, 2010 at 16:56 comment added Dorian The exam is next tuesday. This isn't a problem for a textbook or old exam or anything. I am responsible for 'knowing' parabolic reguliarty on my exam and I'm using Evans as my main source. He seems to only discuss full regularity up to the boundary and doesn't seem to make any points about what is going on in the interior and near the boundary away from $t=0$ (he makes one small remark about interior regularity). These are just questions I thought of when thinking of really basic questions I might get like heat equation on $[0,1]$ with $u(0,x)=x(1-x)$. Do I have $C^{\infty}$ solutions? etc..
Oct 7, 2010 at 16:26 comment added Deane Yang Do you know any classmates who are also taking the exam? It's very helpful to struggle through these things together with someone else in the same situation. Your questions are a bit too out of context to be able to offer clear help. Are you trying to solve a problem from an old exam, or are you asking about something you're reading in a book? If the latter, from where? And when's the exam?
Oct 7, 2010 at 15:16 comment added Dorian I should also add that I have my qualification exams next week and so this is why I am constantly asking questions. I have a million questions which come up and I do indeed ask people here. However some of them I appreciate multiple perspectives which this website offers.
Oct 7, 2010 at 15:15 comment added Dorian More often than not I don't get helpful answers. I perhaps would if I bothered professors more but I like to do that in extreme moderation. At least here if people don't care to answer they don't need to. If they have something helpful to say they can offer it.
Oct 7, 2010 at 15:12 history edited Dorian CC BY-SA 2.5
problem needed clarification
Oct 7, 2010 at 14:50 comment added Deane Yang I also continue to be baffled why you aren't consulting your classmates and teachers at Courant before posting on MathOverflow. Aren't you able to get helpful answers from them?
Oct 7, 2010 at 14:43 comment added Deane Yang I don't know what $f$, $g_{m-1}$, and $L$ are in the second sentence. Also, you appear to have a typo in the formula that starts the second paragraph.
Oct 7, 2010 at 14:41 history asked Dorian CC BY-SA 2.5