nef-4d.x(1)

compute Hodge numbers of nef-partitions

Section 1 palp bookworm source

Description

nef.x, nef-<num>d.x - compute Hodge numbers of nef-partitions

nef.x <Options>

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.

-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