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-- [ 1509468 ] Computation Hang-up and Strange Behavior of Units -- (?) -- Submitted By: -- Frank Moore - fmoore Date Submitted: -- 2006-06-20 17:37 -- Last Updated By: -- fmoore - Attachment added Q = ZZ/32003[a,b,c,d] J1 = ideal {a^3,b^3,c^3,d^3} J2 = ideal {a^4,b,c,d} J3 = ideal {a,b^4,c,d} I = intersect(J1,J2,J3) --- define quotient ring over Q use Q S = Q/(I+ideal{b^3}) res coker vars S --- define quotient ring over Q another way use Q S = Q/ideal {a^4,a^3*b,a^3*c,a^3*d,b^3,c^3,d^3} res coker vars S --- define intermediate ring R and then define S as a quotient ring of R --- hangs up on res coker vars S R = Q/I K = ideal {b^3} S = R/K -- gbTrace = 3 C = res coker vars S -- goes to higher and higher degree without stopping: FIXED: 6/20/06 net betti C == net "total: 1 4 13 41 129 406 0: 1 4 6 4 1 . 1: . . 3 12 18 12 2: . . 4 22 58 93 3: . . . 3 36 150 4: . . . . 16 127 5: . . . . . 24"