Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 7ebd25ac536d248d499a3ce2acda963a > files > 1375

Macaulay2-1.3.1-8.fc15.i686.rpm

-- -*- M2-comint -*- {* hash: 1924269944 *}

i1 : kk=ZZ/32003

o1 = kk

o1 : QuotientRing

i2 : S=kk[a..d]

o2 = S

o2 : PolynomialRing

i3 : F=res (ideal vars S)^2

      1      10      20      15      4
o3 = S  <-- S   <-- S   <-- S   <-- S  <-- 0
                                            
     0      1       2       3       4      5

o3 : ChainComplex

i4 : isSyzygy(coker F.dd_3,3)  -- the cokernel defined by the 3rd map is not a 3rd syzygy

o4 = false

i5 : isSyzygy(coker F.dd_4,3)  -- the cokernel defined by the 4th map is a 3rd syzygy

o5 = true

i6 :