i. m. soloveichik

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136 Answers

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9	If $a^3 b = ba^3$ and if $ a $ has order 7, show that $ab = ba$
7	Can you construct a field with 6 elements?
6	Is the following field extension normal $\mathbb Q \sqrt {2+\sqrt 2}\mid \mathbb Q$
5	Proof problem: Show that $n^2-1$ is divisible by $8$, if $n$ is an odd positive integer.
5	Question about algebraic field extensions

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+10	How to prove that every bijective rational function is a linear fractional transformation?
+10	Does knowing the totient of a number help factoring it?
+10	compactness and fundamental group of $SL(n,\mathbb{C})$
+10	Need clarification on Exercise 2.2.7 Hatcher

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2 Questions

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2	Derivative at the origin
1	Unusual presentation of a cyclic group.

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35 abstract-algebra × 21	14 elementary-number-theory × 10
32 homework × 16	14 galois-theory × 8
22 field-theory × 9	10 finite-groups × 9
21 group-theory × 19	9 calculus × 5
15 linear-algebra × 12	8 algebra-precalculus × 13

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