Crystal (mathematics)
Article Index for
Crystal
Limousines in
Crystal
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Crystal
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Crystal (mathematics)
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Crystal
in
Mathematics
has more than one abstract meaning
Crystal Graph
s were introduced in
Representation Theory
, by
Masaki Kashiwara
in the 1990s, with application to the decomposition of
Tensor Product
s. A closely related notion due to
George Lusztig
is a
canonical basis
in representations of
Simple
and
Affine
quantum groups. See also
Crystal Base
.
Crystal (differential Equation)
is an idea introduced in
Algebraic Geometry
in the 1960s by
Alexander Grothendieck
, for a certain type of
Algebraic Differential Equation
(with ''
Divided Power Structure
'') that is used to define
Crystalline Cohomology
).