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ArrSignedGraphical    --    signed graphical arrangement


Syntax 
ArrSignedGraphical(S: RING, PositiveEdgesG: LIST, PositiveEdgesG: LISTedgesG: LIST, loopsG: LIST): LIST

Description
This function constructs the signed graphical arrangement with respect to the list of positive edges PositiveEdgesG, of negative edges NegativeEdgesG and of loops loopsG of the signed graph G in the polynomial ring S.

Example 
/**/ use S::=QQ[x,y,z];	
/**/ ArrSignedGraphical(S, [[1,2],[1,3]],[[2,3]],[1,3]);
[x -y,  x -z,  y +z,  x,  z]

/**/ use S::=QQ[x[1..3]];	
/**/ ArrSignedGraphical(S, [[1,2],[1,3]],[[2,3]],[1,3]);
[x[1] -x[2],  x[1] -x[3],  x[2] +x[3],  x[1],  x[3]]

See Also