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ScroogeMcDuck
  • Member for 11 years
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22 votes
4 answers
10k views

Sum of closed and compact set in a TVS

16 votes
1 answer
2k views

Are continuous functions strongly measurable?

6 votes
1 answer
2k views

Using Lax Milgram to find a weak solution in an intersection of Sobolev spaces

5 votes
2 answers
933 views

Flowing a vector along a vector field $X$ using the pushforward of the flow of $X$

5 votes
1 answer
1k views

Pullback of a form using the Hopf fibration

2 votes
0 answers
180 views

Structure equations on the 3-sphere

2 votes
0 answers
342 views

Dirac delta composed with a function and implicit equation for the roots

2 votes
0 answers
138 views

Writing a 2nd order linear ODE as a set of 2 first order ODEs in its independent solutions

2 votes
1 answer
707 views

Proving that a weak solution of a BVP satisfies the boundary condition

1 vote
1 answer
876 views

Is the gradient of a function in $H^2_0$ in $H^1_0$?

1 vote
0 answers
112 views

Codimension in X, given the codimension in a subspace of X

1 vote
2 answers
205 views

Multiplication operator with a function non-vanishing on the cantor set

1 vote
1 answer
413 views

Continuity of a map from $\mathbb{C}$ to a Banach algebra

1 vote
1 answer
188 views

Singular solutions of a system of nonlinear 2nd order ODEs

1 vote
0 answers
46 views

Proving a global property of the connection from a property of local connection matrices

0 votes
1 answer
581 views

Square root in Banach algebra

0 votes
2 answers
926 views

Limit of nth power of operator norm