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Apr
11
asked Tests for my “LineGraph-from-AdjacencyMatrix” function
Mar
31
answered Is there a transitive property for undirected graph paths?
Mar
31
answered Who found the expression $n^2 - n + 41 $ for generating prime numbers?
Mar
30
answered Is it possible to express a vector using cross product with another vector?
Mar
30
answered Sum problem $S_n=1q+8q^2+27q^3+ … +n^3q^n$
Mar
30
answered A task about Bipartite Graph
Mar
30
answered vertex that can reach every other vertex in the graph, imply every vertex can reach each other?
Mar
30
asked Provable Hamiltonian Subclass of Barnette Graphs
Mar
29
answered Can every function be represented as polynomial
Mar
29
answered Closed form for $L$ in $LL^T=XX^T-Diag(XX^T)$
Mar
29
answered Multinomial Coefficients Confusion
Mar
29
asked Get rid of `for` loops to construct $L$
Mar
14
asked Solution for sets of $(x_k-x_l)(x_l-x_m)(x_m-x_k)>0$
Mar
4
asked How to prove $\small 2\sin{(2m+1)x} -\sin{(2m-1)x}=\sin{x}\left(1+2\cos{(2mx)}+2\sum\limits_{k=1}^{m}\cos{(2kx)}\right)$?
Mar
3
asked Is the cycle space of a planar bicubic graph an algebraic variety?
Feb
29
answered Petersen graph is tripartite
Feb
23
answered Which derivatives are eventually periodic?
Feb
19
asked A triangle, two squares, five pentagons and $x$ hexagons met in the plane…
Feb
17
answered Test diagonalizability of $T(A)=A^t$ over all $n\times n$ matrices
Feb
15
answered How many vertices do you need so that all squares are not directly connected?