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Nate's user avatar
Nate's user avatar
Nate
  • Member for 2 years, 11 months
  • Last seen this week
6 votes
3 answers
491 views

How does this definition of a topology on $X$ not cause $X \in X$?

6 votes
1 answer
102 views

What in a rigorous context (no notation abuse) is happening that allows you to solve this ODE problem?

5 votes
1 answer
79 views

Difficulty understanding how to deform these oriented circles continuously and make the following links (would like a drawing):

4 votes
2 answers
922 views

Question about the definition of a homomorphism

3 votes
2 answers
157 views

Question about the proof in "Understanding Analysis" by Stephen Abbot

3 votes
1 answer
171 views

Fundamental questions about differential forms:

3 votes
1 answer
86 views

Questions on notation that I haven't seen before (tensor product sign in superscript and mysterious $\Gamma$ symbol)

3 votes
0 answers
85 views

Question about dimensionality of radians and their function when double integrating in polar coordinates

3 votes
1 answer
128 views

Want a simple construction of a relative CW complex (something like a torus) analogous to regular CW Complex constructions.

2 votes
3 answers
138 views

Is this a correct definition for generating set of a group?

2 votes
1 answer
25 views

Evans's scalar conservation law order of operation? $\left( u_t + F(u)_x \right)$

2 votes
0 answers
44 views

Question on notation in Mathematical Foundations of Elasticity (Marsden and Hughes)

2 votes
2 answers
71 views

What limits are there on the property that $a \space \ln(i) = \ln(i^a) $

2 votes
1 answer
116 views

Is this diagram of the free product of two groups correct?

2 votes
1 answer
69 views

Definition and construction of a quotient space using a toy example

2 votes
0 answers
103 views

Question about this notation for m-forms and differential forms:

1 vote
1 answer
60 views

What's the easiest, simplest, and if possible most visualizable example for indexing categories?

1 vote
0 answers
103 views

Not understanding concretely the Wikipedia or text definition of "Subobject classifier"

1 vote
0 answers
95 views

Why in this question are the intervals considered countable?

1 vote
0 answers
52 views

Need help with a linear-algebra based proof for maximum transpositions in $S_n$

1 vote
1 answer
94 views

Allen Hatcher's Algebraic Topology -- Unclear statement

1 vote
1 answer
62 views

Need help finding a solution (if it exists) for a modular arithmetic formula for three numbers a, b, and c

1 vote
1 answer
109 views

I am trying to factor $(a^2 - 2ab + b^2 + 1)$ into $n$ terms for $a$ and $b$.

1 vote
1 answer
126 views

Software Tools that allow you to do symbolic Ricci Calculus / Tensor Notation?

1 vote
0 answers
80 views

Graph Homology: Clarifying questions/drawings and more thorough sources wanted [closed]

1 vote
1 answer
37 views

B-Isomorphic? (Husemoller, Fiber Bundles). Illustrated diagrams included.

1 vote
1 answer
37 views

Question about definition of integral curve (Marsden and Hughes) [closed]

1 vote
0 answers
71 views

$\pi$ is a fiber bundle over $B$... Difficulty interpreting some Wikipedia definitions

1 vote
2 answers
97 views

"Open" Cell? (Hatcher and Husemoller)

0 votes
0 answers
180 views

Husemoller's definition of $\Phi$-topology and $\Phi$-defined: Having trouble understanding it