homologically trivialの例文

例文

1. where Z ^ k ( X ) denotes the group of algebraic cycles of some fixed codimension " k " and the subscripts indicate the groups that are homologically trivial, respectively algebraically equivalent to zero.
2. It follows that a compact K鋒ler Einstein manifold " X " must have canonical bundle " K " " X " either anti-ample, homologically trivial, or Calabi Yau, or with ample canonical bundle ( which implies general type ), respectively.
3. In mathematics, especially in the area of algebraic topology known as stable homotopy theory, the "'Adams filtration "'and the "'Adams-Novikov filtration "'allow a stable homotopy group to be understood as built from layers, the " n " th layer containing just those maps which require at most " n " auxiliary spaces in order to be a composition of homologically trivial maps.