akopyan
Reputation
471
Next privilege 500 Rep.
Access review queues
Badges
3 10
Newest
Impact
~63k people reached

• 0 posts edited
• 0 helpful flags
• 18 votes cast

# 48 Actions

 Nov 8 comment Number of orders of $k$-sums of $n$-numbers Thank you! Can you estimate this number from below? Is it $O(|K|^{2(n-1)})$? Nov 8 awarded Nice Question Nov 7 awarded Yearling Nov 7 awarded Custodian Nov 7 reviewed Approve Number of orders of $k$-sums of $n$-numbers Nov 7 revised Number of orders of $k$-sums of $n$-numbers added 2 characters in body Nov 7 awarded Student Nov 7 asked Number of orders of $k$-sums of $n$-numbers Oct 1 awarded Necromancer Apr 10 awarded Nice Answer Jul 30 comment A Weak Form of Borsuk's Conjecture Dear Prof. Kalai, how many faces in your example? Feb 1 awarded Nice Answer Jul 30 awarded Commentator Jul 30 comment (1-Lipschitz) + (length-preserving) = isometry Here it is for high dimensional Euclidean case. cs.elte.hu/geometry/Workshop09/large_r5.pdf Jul 29 revised (1-Lipschitz) + (length-preserving) = isometry deleted 2 characters in body Jul 29 answered (1-Lipschitz) + (length-preserving) = isometry Jul 28 comment (1-Lipschitz) + (length-preserving) = isometry Using that f is 1-Lipschitz and that [aa′] is a diameter, we get that β must be contained in the interior of α Why? Apr 12 comment Is there a generalized Feuerbach point for an irregular non-Euclidean triangle? I've found synthetic proof for it to the two dimensional non-Euclidean case. But article is in Russian. mccme.ru/free-books/matpros/mpd.pdf#page=155 Dec 26 answered What would you want to see at the Museum of Mathematics? Nov 30 awarded Yearling