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Jan
2
asked Proof of $f \in C_C(X)$ where $X$ is a metric space implies $f$ is uniformly continuous
Jan
1
awarded  Disciplined
Jan
1
accepted $H_1(X,A) = 0 \iff H_1(A) \rightarrow H_1(X)$ surjective and $X_i$ contains no more than one path-component of $A$
Jan
1
accepted $H_1(\mathbb{R}, \mathbb{Q})$ is free abelian
Jan
1
accepted Equivalent identification to get the projective plane?
Jan
1
accepted Homology of disjoint union is direct sum of homologies
Jan
1
accepted Proof of another Hatcher exercise: homotopy equivalence induces bijection (part II)
Jan
1
comment An inequality about maximal function
What's the maximal function of $f$?
Dec
31
comment Clarifying the definition of “unstable”
@J.M. Nice, thanks : ) And thanks for the vote, I assume it was you.
Dec
31
comment Clarifying the definition of “unstable”
@J.M. Do you approve of my edit above?
Dec
31
revised Clarifying the definition of “unstable”
added 303 characters in body
Dec
31
comment Clarifying the definition of “unstable”
@J.M. Hmmm. I just re-read the question and it reads to me as "Are there any algorithms where the error of the algorithm is insignificant with respect to the method itself?" But the algorithm is the method itself. Am I confused?
Dec
31
comment Clarifying the definition of “unstable”
@J.M. True, I forgot about ill-conditioned problems. But I've not heard of forward and backward stability I think. Yet I don't think this falsifies my answer.
Dec
31
comment Set Notation Excercise
Yes, exactly : )
Dec
31
answered Set Notation Excercise
Dec
31
answered Clarifying the definition of “unstable”
Dec
31
revised Relative homology groups of the torus
edited title
Dec
31
answered Relative homology groups of the torus
Dec
30
comment Showing that this is a group under matrix multiplication
@John Yes, it's what you have to show. The second line above shows exactly that. : )
Dec
30
comment LIM is cofinal in ON
: ) But that's what I wanted to show!