fieker-DuValspielwiese
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Last change
on this file since c23373 was
75f460,
checked in by Hans Schoenemann <hannes@…>, 9 years ago
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format
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-
Property mode set to
100644
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File size:
419 bytes
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| 1 | LIB "tst.lib"; |
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| 2 | tst_init(); |
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| 3 | ring r=0,(x,y,Dx,Dy),dp; |
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| 4 | matrix M[4][4]; M[1,3]=1;M[2,4]=1; |
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| 5 | def R = nc_algebra(1,M); // 2nd Weyl algebra |
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| 6 | setring R; |
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| 7 | dim(std(0)); // the GK dimension of the ring itself |
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| 8 | ideal I=x*Dy^2-2*y*Dy^2+2*Dy, Dx^3+3*Dy^2; |
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| 9 | dim(std(I)); // the GK dimension of the module R/I |
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| 10 | module T = (x*Dx -2)*gen(1), Dx^3*gen(1), (y*Dy +3)*gen(2); |
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| 11 | dim(std(T)); // the GK dimension of the module R^2/T |
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| 12 | tst_status(1);$ |
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