Alex P.

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bio	website	provosta.lacim.uqam.ca
	location	Montreal, Canada
	age	22
visits	member for	3 months
	seen	8 hours ago
stats	profile views	106

I'm a grad student currently living in Montreal. My interests include algebraic topology, homological algebra, category theory, and commutative algebra, among others.

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48 Answers

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6	Understanding Hom functions
5	Prove that $x-1$ divides $x^n-1$
4	Number of linear maps is less or equal than the dimension of the vector space
4	For any basis of a dual space $B^$, does there always exist a basis $B$ so that the dual basis of $B$ equals $B^$?
3	Why is $\;n^2-\frac{n^2}{2} =\frac{n^2}{2}\;$?

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1,124 Reputation

+2	The graph of the function $y=\log_bx$ passes through the point $(729,6)$. Determine $b$.
+20	The graph of the function $y=\log_bx$ passes through the point $(729,6)$. Determine $b$.
+20	Find Aut$(G)$, Inn$(G)$ and $\dfrac{\text{Aut}(G)}{\text{Inn}(G)}$ for $G = \mathbb{Z}_2 \times \mathbb{Z}_2$
+10	Prove that $x-1$ divides $x^n-1$

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7 Questions

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7	Can we think of an adjunction as a homotopy equivalence of categories?
4	Sum of Cauchy sequences in an abelian topological group (first countability hypothesis)
2	Ideal of polynomials in $k[X_1,…X_n]$ vanishing at a point $p$ is $(X_1 - p_1, …,X_n - p_n)$ [duplicate]
2	Product of ideals corresponding to vanishing of points is equal to their intersection
2	Independence of coordinate charts in the definition of the order of a pole of a meromorphic 1-form on a Riemann surface

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57 Tags

22 abstract-algebra × 14	7 vector-spaces × 2
18 linear-algebra × 13	6 category-theory × 2
13 homework × 13	5 matrices × 5
11 functions × 3	5 calculus × 3
8 group-theory × 5	5 ring-theory × 3

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