Mathematics
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Colorblind97's user avatar
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Colorblind97
  • Member for 3 years, 9 months
  • Last seen more than 3 years ago
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All Questions Answers
Score Newest
answer
4
Minimum number of triangles in a graph
Jan 21, 2020
answer
3
G is a simple undirected, connected graph with $\kappa$(G) < $\frac{n}{2}$. G has a simple path with 2$\kappa$(G) length.
Dec 20, 2019
answer
3
Lower bound for number of triangles in simple graph.- very hard exercise
Mar 10, 2020
answer
3
Combinatorial proof that $\sum_0^n {n+k \choose n}{2n-k-1 \choose n-1} = {3n \choose n}$
Apr 30, 2020
answer
2
A conjecture regarding products of $u(x)=x+\frac1x$
Dec 21, 2019
answer
2
Closed form summation of expression with binomial coefficient
Jan 11, 2020
answer
2
Combination of problem having identical objects without using generating function approach
Feb 2, 2020
answer
2
A combinatorial equality, maybe involving partition
Mar 8, 2020
answer
2
Number of trees with vertex set $[n]$ and vertex $i$ with $deg(v_i)=d_i$ s.t. $\sum d_i = 2n-2$
Mar 8, 2020
answer
2
How to prove that if $4\mid n$ or $4\mid |n − 1$ then there is a self-complementary graph on n vertices?
May 23, 2020

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