i1 : B = threeDimSklyanin(QQ,{1,1,-1},{x,y,z})
--Calling Bergman for NCGB calculation.
Complete!
o1 = B
o1 : NCQuotientRing
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i2 : M = ncMatrix {{x, y, z}}
o2 = | x y z |
o2 : NCMatrix
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i3 : sigma = ncMap(B,B,{y,z,x})
o3 = NCRingMap B <--- B
o3 : NCRingMap
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i4 : N = ncMatrix {{M},{sigma M}, {sigma sigma M}}
o4 = | x y z |
| y z x |
| z x y |
o4 : NCMatrix
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i5 : N*(1/2)
o5 = | 1/2*x 1/2*y 1/2*z |
| 1/2*y 1/2*z 1/2*x |
| 1/2*z 1/2*x 1/2*y |
o5 : NCMatrix
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