NEF.X
Section: User Commands (1)
Updated: May 2012
Index
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NAME
nef.x, nef-<num>d.x - compute Hodge numbers of nef-partitions
SYNOPSIS
nef.x
<Options>
DESCRIPTION
The nef-<num>d.x variant programs, where <num> is one of 4, 5, 6 and 11
work in different dimensions ; nef.x defaults to dimension 6.
Options
- -h
-
prints this information
- -f or -
-
use as filter; otherwise parameters denote I/O files
- -N
-
input is in N-lattice (default is M)
- -H
-
gives full list of Hodge numbers
- -Lv
-
prints L vector of Vertices (in N-lattice)
- -Lp
-
prints L vector of Points (in N-lattice)
- -p
-
prints only partitions, no Hodge numbers
- -D
-
calculates also direct products
- -P
-
calculates also projections
- -t
-
full time info
- -cCODIM
-
codimension (default = 2)
- -Fcodim
-
fibrations up to codim (default = 2)
- -y
-
prints poly/CWS in M lattice if it has nef-partitions
- -S
-
information about #points calculated in S-Poly
- -T
-
checks Serre-duality
- -s
-
don't remove symmetric nef-partitions
- -n
-
prints polytope only if it has nef-partitions
- -v
-
prints vertices and #points of input polytope in one
line; with -u, -l the output is limited by #points:
- -uPOINTS
-
... upper limit of #points (default = POINT_Nmax)
- -lPOINTS
-
... lower limit of #points (default = 0)
- -m
-
starts with [d w1 w2 ... wk d=d_1 d_2 (Minkowski sum)
- -R
-
prints vertices of input if not reflexive
- -V
-
prints vertices of N-lattice polytope
- -Q
-
only direct products (up to lattice Quotient)
- -gNUMBER
-
prints points of Gorenstein polytope in N-lattice
- -dNUMBER
-
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
- -G
-
Gorenstein cone: input <-> support polytope
SEE ALSO
A complete manual is available here : http://arxiv.org/abs/1205.4147
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- Options
-
- SEE ALSO
-
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