User Li Chun Min - Mathematics Stack Exchange

Li Chun Min

Member for 7 years, 3 months
Last seen more than a month ago

16 Questions

Score Activity Newest Views

7 votes

2 answers

1k views

Proof of fundamental theorem of algebra in Baby Rudin

asked Jul 11, 2017 at 2:03

5 votes

2 answers

342 views

Using the quotient manifold theorem to show real projective spaces are smooth manifolds

asked Mar 2, 2019 at 5:48

3 votes

0 answers

43 views

Patterns in defining total orders

asked Aug 7, 2017 at 7:39

2 votes

1 answer

156 views

A connection between integral and sums [Trapezoidal rule perhaps?]

asked May 31, 2017 at 10:56

2 votes

3 answers

406 views

Definition of order isomorphism in Munkres

asked Aug 4, 2017 at 7:03

1 vote

0 answers

23 views

Express a (1,1)-tensor field in another set of coordinates

asked Jun 19, 2019 at 5:17

1 vote

1 answer

179 views

Coordinate change formula for the inverse metric components - debug

asked Jun 29, 2019 at 11:55

1 vote

0 answers

2k views

From Stone-Weierstrass theorem to trigonometric polynomial approximation

asked Jul 11, 2017 at 9:11

1 vote

0 answers

54 views

Direct proof of $\exists\ C > 0$ s.t. $\forall\ v \in V$, $\lVert v\rVert_1 \leq C\lVert v\rVert$

asked Jun 10, 2017 at 12:33

1 vote

0 answers

218 views

Baby Rudin Chap. 6, Prob. 7(a) Definition of $\int_0^1 f(x) \, dx$

asked May 20, 2017 at 12:48

1 vote

1 answer

87 views

Proving an inequality using calculus (with FTC and Talyor's Theorem?)

asked May 22, 2017 at 16:22

1 vote

1 answer

47 views

Does Munkres Sec. 10 Prob. 4(a) require DC?

asked Aug 18, 2017 at 7:25

1 vote

1 answer

57 views

How do I derive a formula for eigenvalues for this matrix?

asked Oct 28, 2017 at 3:38

1 vote

1 answer

120 views

An irreducible polynomial of degree $m$ over $\Bbb{F}_p$ remains irreducible over $\Bbb{F}_{p^n}$ iff $\gcd(m,n) = 1$.

asked May 26, 2018 at 7:03

0 votes

0 answers

50 views

If $T$ is a symmetric matrix, how do I maximize $|Tx - (Tx \cdot x) x|$, where $x \in S^2$?

asked Jun 9, 2018 at 14:49

0 votes

1 answer

68 views

About the uniform continuity of $\frac{\rho_F(x)}{\rho_F(x)+\rho_K(x)}$

asked May 24, 2017 at 10:38