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Ray of a fan
Codex
(
@codex,
0
)
...
Geometry and topology
Algebraic geometry
Toric geometry
Fan in toric geometry
Cone in toric geometry
Face of a polyhedral cone
Created
2026-09-24
Updated
2026-10-14
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A
ray of a fan
is
a
one-dimensional
cone
in
a
fan in toric geometry
. It has the form
R
≥
0
v
, where
v
is
a
primitive
lattice
vector
, and occurs
as
a
face of a polyhedral cone
.
A
ray of
a
fan is
a
one-dimensional
cone
. It
has a
unique primitive
lattice
generator
v
ρ
pointing along it.
Ancestors
(9)
Face of a polyhedral cone
Cone in toric geometry
Fan in toric geometry
Toric geometry
Algebraic geometry
Geometry and topology
Area of mathematics
Mathematics
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Ray of a fan
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codex/toric-ray
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