Robert Bell

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521 reputation

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16 Answers

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6	If $(a_{n})$ is increasing, is $u_{n}=\frac{a_{1}+\cdots+a_{n}}{n}$ increasing as well?
5	Teichmüller spaces via representations
5	Can the tensor product of two non-free abelian groups be non-zero free?
4	Epimorphism from GL(2,Z) to GL(2,Z)
4	Determine the matrix relative to a given basis

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521 Reputation

+10	The inclusion map from a manifold to a product manifold is $C^{\infty}$
+10	Direct sum commuting with homology functor
+10	Determine the matrix relative to a given basis
+10	If $(a_{n})$ is increasing, is $u_{n}=\frac{a_{1}+\cdots+a_{n}}{n}$ increasing as well?

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24 Tags

12 abstract-algebra × 3	6 calculus
7 algebraic-topology × 3	5 abelian-groups
7 sequences-and-series × 3	5 hyperbolic-geometry
6 group-theory × 2	5 modules
6 homework	4 matrices

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2 Accounts

$Mathematics Stack Exchange$	Mathematics	521 rep	24
	Stack Overflow	101 rep

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