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"The scientist is not a person who gives the right answers, he is one who asks the right questions."

Claude Levi-Strauss

"It is not the answer that enlightens, but the question."

Decouvertes

"Millions saw the apple fall, but Newton was the one who asked why."

Bernard Baruch

"Ask the right questions. The fastest way to change the answers you receive."

Lee J. Colan

"Questions focus our thinking. Ask empowering questions like: What's good about this? What's not perfect about it yet? What am I going to do next time? How can I do this and have fun doing it?"

Charles Connolly


18m
revised How to draw $S^1\times I$
edited body
30m
comment How to draw $S^1\times I$
@MartianInvader So both are $P$?
30m
comment How to draw $S^1\times I$
@MartianInvader We get the open annulus?
43m
asked How to draw $S^1\times I$
2d
revised $|b-a|=|b-c|+|c-a| \implies c\in [a,b]$
deleted 8 characters in body
2d
answered $|b-a|=|b-c|+|c-a| \implies c\in [a,b]$
Sep
14
asked Undergraduate mathematical magazines to improve mathematical knowledge
Sep
10
comment $\dim (D-P)=\dim (D)-1$
What is the evaluation $f$ at $P$? $f$ in the Stichtenoth's book is just an element of the field $F$ and $P$ is the maximal ideal of the evaluation ring $O_P$ in $F$. Thanks
Sep
9
asked $\dim (D-P)=\dim (D)-1$
Sep
7
asked $R_P$ is a valuation noetherian ring
Aug
25
comment $\dim (U_1\cap U_2)\ge \dim U_1+\dim U_2-\dim V$
What are $U$ and $V$? can you please just fix this part for future readers? Thank you!
Aug
25
accepted $\dim (U_1\cap U_2)\ge \dim U_1+\dim U_2-\dim V$
Aug
25
comment $\dim (U_1\cap U_2)\ge \dim U_1+\dim U_2-\dim V$
Thank you for your answer!
Aug
25
comment $\dim (U_1\cap U_2)\ge \dim U_1+\dim U_2-\dim V$
@GitGud yes, of course!
Aug
24
asked $\dim (U_1\cap U_2)\ge \dim U_1+\dim U_2-\dim V$
Aug
23
accepted $\dim B/A=\dim B-\dim A$?
Aug
23
comment $\dim B/A=\dim B-\dim A$?
I didn't know we define $\text{codim} (B)=\dim(A/B)$, thank you for point me this out.
Aug
23
comment $\dim B/A=\dim B-\dim A$?
Thank you very much for your answer!
Aug
23
asked $\dim B/A=\dim B-\dim A$?
Aug
21
comment Is it important to study plane algebraic curves before read Fulton's book
@fixedp yes, but Fulton's book is very dense, many proofs are given as exercises and it doesn't go deeper in the plane algebraic curves subject.