# JJR

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2nd year Math student

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 Feb28 comment Connection between Galois trace and matrix traceWorks well, thanks! Feb28 accepted Connection between Galois trace and matrix trace Feb28 comment Connection between Galois trace and matrix traceThanks for your help Dmitri! The only part I am not quite seeing is how you arrived at the last column of your basis matrix? Feb27 asked Connection between Galois trace and matrix trace Feb21 comment American undergraduate applying overseas@ZhenLin From the sounds of things it is typical to do Part III then. Reading the "Unofficial Guide to Part III" by Tom K\"orner has helped, but I do have one question about number of different courses: I see that courses are either 2 or 3 units depending on how long they last, and then it is recommended you offer 17-19 credits for examination. Is this examination at the end of your year, or do you take an examination after each term? Feb21 revised American undergraduate applying overseasadded info Feb21 asked American undergraduate applying overseas Feb21 comment Basic identity of characters@darijgrinberg I apologize, those identities were proved by Serre earlier in the section, and so I stated them without proof Feb20 accepted Character of a permutation representation Feb20 accepted Basic identity of characters Feb20 revised Character of a permutation representationdeleted 37 characters in body Feb20 comment Basic identity of characters@BenjaLim thanks very much. I now see. Could you post your response as an answer? Feb20 asked Character of a permutation representation Feb20 revised Basic identity of charactersadded 152 characters in body Feb20 comment Basic identity of characters@darijgrinberg where would the trace first be necessary? Am I able to expand the square of the characters from $(\chi + \chi')^2$ to $(\chi^2 + 2\chi \chi' + \chi'^2)$ or is this where I will need the trace? Feb20 asked Basic identity of characters Feb17 accepted Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$. Feb17 comment Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$.Looks tractable. Thanks for your help! Feb17 comment Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$.Then letting $a \in G$ be an element of order $p$, perhaps I should consider $G/\langle a \rangle$? Feb17 asked Subgroups of order $p$ and $p^{n-1}$ in a group of order $p^n$.