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-- Ezra Miller <enmiller@math.berkeley.edu> R = ZZ/101[a,b,c,d] f = map( R^{-1,-1,-1,0}, R^ {-2, -2, -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-1,-1,-1,-1}, { { d, 0, c, 0, 0, b, a, 0, 0, 0, 0, 0, 0, 0, 0, 0}, -- -1 { 0, d, 0, c, 0, 0, 0, b, a, 0, 0, 0, 0, 0, 0, 0}, -- -1 { 0, 0, 0, 0, d, 0, 0, 0, 0, c, b, a, 0, 0, 0, 0}, -- -1 { 0, 0, d^2, 0, 0, 0, 0, 0, 0, 0, 0, 0, d, c, b, a} -- 0 }) assert( isHomogeneous f ) E = cokernel f assert( HH_1 res E == 0 ) end -- Local Variables: -- compile-command: "make -C $M2BUILDDIR/Macaulay2/packages/Macaulay2Doc/test ext.out" -- End: