jp26
Reputation
1,244
Top tag
Next privilege 2,000 Rep.
 Jul 5 awarded Yearling May 23 revised Does a $K_n$ with $n$ pendants have a name? fixed link after title change May 23 awarded Excavator May 23 revised Eccentricity in corona product made title more descriptive May 23 revised Does a $K_n$ with $n$ pendants have a name? Added link to original paper May 23 suggested approved edit on Eccentricity in corona product May 23 answered Does a $K_n$ with $n$ pendants have a name? Apr 29 revised Is the adjacency matrix of a given graph (OR any graphs isomorphic to a given graph) a Kronecker product, and if so what are the factors? edited body Apr 29 revised Is the adjacency matrix of a given graph (OR any graphs isomorphic to a given graph) a Kronecker product, and if so what are the factors? added 2 characters in body Apr 29 suggested rejected edit on Is the adjacency matrix of a given graph (OR any graphs isomorphic to a given graph) a Kronecker product, and if so what are the factors? Apr 29 revised Is the adjacency matrix of a given graph (OR any graphs isomorphic to a given graph) a Kronecker product, and if so what are the factors? added 44 characters in body Apr 29 answered Is the adjacency matrix of a given graph (OR any graphs isomorphic to a given graph) a Kronecker product, and if so what are the factors? Apr 19 answered Approach to determining if a graph is planar by inspection/kuratowski's theorem Apr 15 comment Simple maths and a typo: impossible answer? There are also solutions with $y=18$ and $y=-19$ since we then have $(2a-1)^2=13^2$ and we can have $a=7$ or $a=-6$. Feb 16 answered Prove if r is the smallest positive integer such that all entries of at least one row of Sr are positive, then rad(G) = r. Jan 29 answered Find all natural numbers for which $3\binom{2n}{n+1}=2\binom{2n+1}{n-1}$ holds true Jan 26 revised Rank in row echelon form 1-cd not -cd+1 Jan 26 revised Rank in row echelon form added 35 characters in body Jan 26 answered Rank in row echelon form Dec 20 awarded Constituent