User Sobi - Mathematics Stack Exchange

Sobi

Member for 7 years, 10 months
Last seen more than 1 year ago

sites.google.com/site/…
Providence, RI

13 Answers

Score Activity Newest

2 votes

In how many possible ways can we assign the numbers from 1 to 12 to the edges

answered Dec 7, 2015 at 18:03

2 votes

Number Theory: Reordering $c_1,\dotsc,c_{10}$ so that $(2k-1)\mid(a_k-b_k)$

answered Dec 7, 2015 at 23:58

1 vote

Why must an inverse function be bijective?

answered Dec 6, 2015 at 0:30

1 vote

Accepted

Some equations involving multiple absolute values

answered Dec 6, 2015 at 0:48

1 vote

Accepted

Prove that if $\chi(G-u-v)=\chi(G)-2$ for every vertices $u, v$ ($u \ne v$) then G is complete graph.

answered Dec 5, 2015 at 23:16

1 vote

Finite state machine

answered Dec 6, 2015 at 8:01

1 vote

The Hand Shaking Lemma

answered Dec 7, 2015 at 17:47

0 votes

Accepted

Find a recurrence relation that counts the number of off-diagonal elements of an $n+1 × n+1$ matrix...

answered Dec 5, 2015 at 23:44

0 votes

Two different answers - cubes and colors

answered Dec 6, 2015 at 1:20

0 votes

Inequalities with min and max

answered Dec 6, 2015 at 6:05

0 votes

String of 0's and 1's in combinatorics

answered Dec 6, 2015 at 6:58

0 votes

Why are homogenous coordinates needed in image projection?

answered Dec 10, 2015 at 22:59

-1 votes

Function $f: \mathbb{R} \to \mathbb{R}$ that takes each value in $\mathbb{R}$ three times

answered Dec 7, 2015 at 18:43