bio | website | quora.com/Alon-Amit |
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location | Los Altos, CA | |
age | 45 | |
visits | member for | 5 years, 2 months |
seen | yesterday | |
stats | profile views | 3,745 |
Dabbler in things.
Jun 18 |
comment |
Gently falling functions
Sorry if that's a silly question but in example 1), a particle starting at (0,1) won't go anywhere unless you give it some initial horizontal velocity. Are you suggesting that the separation point tends to the indicated point as that velocity tends to 0? |
Jun 17 |
comment |
Proof that any NP problem can be reduced (in P time) to any problem in NPC?
I don't understand your modified question. Of course every problem in NP can be reduced some subset of NP problems - it can be "reduced" to itself, and often to lots of other problems polynomially-equivalent to it. Why does that imply that NPC is empty? |
Jun 11 |
comment |
Is there any sequence $a_n$ of nonnegative numbers for which $\sum_{n \geq 1}a_n^2 <\infty$ and $\sum_{n \geq 1}\left(\sum_{k \geq 1}\frac{a_{kn}}{k}\right)^2=\infty$?
In line 3, did you mean "the sequence whose $n$-th term is..."? |
Jun 3 |
comment |
Examples of theorems misapplied to non-mathematical contexts
If he does, it's a slam dunk. |
Jun 1 |
answered | Examples of theorems misapplied to non-mathematical contexts |
Jun 1 |
answered | Examples of theorems misapplied to non-mathematical contexts |
May 19 |
awarded | Nice Answer |
Apr 20 |
awarded | Popular Question |
Apr 18 |
comment |
Proof of no rational point on Selmer's Curve 3x^3+4y^3+5z^3=0
@Ho Chung Siu, do you happen to have a copy of that paper anywhere accessible? |
Apr 18 |
awarded | Nice Question |
Apr 14 |
comment |
What is the high-concept explanation on why real numbers are useful in number theory?
This is totally tangential but I just want to say I strongly disagree with the sentiment of the first sentence. If statements and proofs were typically "in the same world", math would be so dull. Dystopia. |
Apr 10 |
comment |
Motivation behind Tutte's 1-factor theorem
I changed the question's title to better correspond to its content. You don't appear to be interested in the historical development of the theorem, but rather the motivation behind this characterization. Perhaps a better way to phrase the question would be to ask, is there any algorithmic or theoretical advantage to this (rather daunting) condition. |
Apr 10 |
revised |
Motivation behind Tutte's 1-factor theorem
Changing the title to better reflect the content of the question. |
Mar 9 |
awarded | Notable Question |
Feb 15 |
awarded | Nice Answer |
Jan 11 |
answered | About an exercise in Serre's “Trees” |
Jan 4 |
comment |
Is “second-countable implies separable” equivalent to the Axiom of countable Choice?
Surely this requires only the axiom of countable choice? |
Dec 22 |
awarded | Nice Answer |
Dec 8 |
comment |
How many finite simple groups of order $p+1$?
n!/2-1 is prime for n=5, 6, 9, 31, 41, 373 ... (sequence A082671 on the OEIS). Is it known if this sequence is finite? |
Dec 5 |
awarded | Nice Answer |