nef-4d.x - Man Page

manual page for nef-4d.x 2.1


nef-4d.x <Options>


This is 'bin/nef-4d.x':  calculate Hodge numbers of nef-partitions

Options: -h        prints this information

-f or -

use as filter; otherwise parameters denote I/O files


input is in N-lattice (default is M)


gives full list of Hodge numbers


prints L vector of Vertices (in N-lattice)


prints L vector of Points (in N-lattice)


prints only partitions, no Hodge numbers


calculates also direct products


calculates also projections


full time info


codimension (default = 2)


fibrations up to codim (default = 2)


prints poly/CWS in M lattice if it has nef-partitions


information about #points calculated in S-Poly


checks Serre-duality


don't remove symmetric nef-partitions


prints polytope only if it has nef-partitions


prints vertices and #points of input polytope in one line; with -u, -l the output is limited by #points:


... upper limit of #points (default = POINT_Nmax)


... lower limit of #points (default = 0)


starts with [d  w1 w2 ... wk d=d_1 d_2 (Minkowski sum)


prints vertices of input if not reflexive


prints vertices of N-lattice polytope


only direct products (up to lattice Quotient)


prints points of Gorenstein polytope in N-lattice


prints points of Gorenstein polytope in M-lattice

if NUMBER = 0 ... no

0/1 info

if NUMBER = 1 ... no redundant

0/1 info (=default)

if NUMBER = 2 ... full

0/1 info


January 2021 nef-4d.x 2.1