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10h
revised Using the Maximum Modulus Principle to prove that every holomorphic function on a compact Riemann surface is constant
deleted 2 characters in body; edited tags; edited title
10h
answered Using the Maximum Modulus Principle to prove that every holomorphic function on a compact Riemann surface is constant
1d
revised Show uniform convergence of the sequence $f_n(x) = ( x-x^n/n)$ for $x \in [0,1]$
edited tags
2d
comment When are differential forms related by a base space automorphism?
@Thomas: Do you know of a reference for this theorem?
Feb
2
awarded  Necromancer
Feb
2
reviewed Reviewed Solve the given Differential Equation
Feb
1
answered When is the rank of Jacobian constant?
Feb
1
comment Cohomology algebra generated by Steifel-Whitney classes and dual classes subject to defining relations?
I'm voting to close as you have not provided context. This is almost word for word a problem from a well-known book in the area. If you got it from there, you should say so.
Jan
31
comment Cantor's Intersection Theorem with closed sets
There is no real number which belongs to $C_n$ for every $n$, so the intersection is empty.
Jan
31
comment Cantor's Intersection Theorem with closed sets
You can create an ellipsis in MathJax by using \dots.
Jan
31
revised Cantor's Intersection Theorem with closed sets
edited body
Jan
31
answered Cantor's Intersection Theorem with closed sets
Jan
31
comment Correspondence defines embedding of $G_n(\mathbb{R}^m)$ into $G_{n+1}(\mathbb{R}^1 \oplus \mathbb{R}^m) = G_{n+1}(\mathbb{R}^{m+1})$?
I voted to close as you have not provided any context. Also, where did you get this problem from? This is almost word for word a problem from a well-known book in the area. If you got the problem from that book, you should say so. If you got it from another source, say that instead. Either way, I highly doubt you came up with the problem independently.
Jan
30
comment Why is $\nabla_X (\varphi Y)=\nabla_X(0\cdot\varphi Y)$?
The first zero is the constant zero, the second is the zero vector field.
Jan
30
comment Why is $\nabla_X (\varphi Y)=\nabla_X(0\cdot\varphi Y)$?
You are correct, that was a typo.
Jan
30
revised Why is $\nabla_X (\varphi Y)=\nabla_X(0\cdot\varphi Y)$?
edited body
Jan
30
revised Why is $\nabla_X (\varphi Y)=\nabla_X(0\cdot\varphi Y)$?
added 4 characters in body; edited tags; edited title
Jan
30
answered Why is $\nabla_X (\varphi Y)=\nabla_X(0\cdot\varphi Y)$?
Jan
28
comment Show that Hermitian Matrices form a Vector Space
Hermitian matrices are not closed under multiplication by $i$, that's why they don't form a complex vector space, only a real one.
Jan
28
reviewed Reviewed What does P(A U B) mean, in terms of real values?