trisecantFlop -- examples of trisecant flops

Synopsis

• Usage:

  trisecantFlop i

• Inputs:
  • i, an integer, an integer between 0 and 17
• Optional inputs:
  • Verbose => ..., default value false, request verbose feedback
• Outputs:
  • the i-th example of birational map $X\dashrightarrow W$ in accordance to the Table 1 in the paper Trisecant Flops, their associated K3 surfaces and the rationality of some Fano fourfolds.

Description

This function requires the package TrisecantFlops. If not present the user will be asked to automatically install the package.

See also

• specialFourfold(String,ZZ) -- load a prebuilt example of fourfold