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MultiprojectiveVarieties : Index
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? MultiprojectiveVariety
-- describe a multi-projective variety
? MultirationalMap
-- describe a multi-rational map
|- MultiprojectiveVariety
-- pick a random rational point on a multi-projective variety
∏
-- product of multi-projective varieties
∏(List)
-- product of multi-projective varieties
⋂
-- intersection of multi-projective varieties
⋂(List)
-- intersection of multi-projective varieties
⋃
-- union of multi-projective varieties
⋃(List)
-- union of multi-projective varieties
ambient(MultiprojectiveVariety)
-- the ambient multi-projective space of the variety
ambientVariety
-- the ambient variety of a projective subvariety
ambientVariety(MultiprojectiveVariety)
-- the ambient variety of a projective subvariety
baseLocus
-- the base locus of a multi-rational map
baseLocus(MultirationalMap)
-- the base locus of a multi-rational map
baseLocus(RationalMap)
-- the base locus of a multi-rational map
check(MultirationalMap)
-- check that a multi-rational map is well-defined
chowForm(EmbeddedProjectiveVariety)
-- chow forms of a projective variety
clean(MultirationalMap)
-- clean the internal information of a multi-rational map
clean(RationalMap)
-- clean the internal information of a multi-rational map
codim(MultiprojectiveVariety)
-- the codimension of the variety
coefficientRing(MultiprojectiveVariety)
-- the coefficient ring of the variety
coefficientRing(MultirationalMap)
-- the coefficient ring of a multi-rational map
compose(MultirationalMap,MultirationalMap)
-- composition of multi-rational maps
coneOfLines
-- cone of lines on a subvariety passing through a point
coneOfLines(EmbeddedProjectiveVariety,EmbeddedProjectiveVariety)
-- cone of lines on a subvariety passing through a point
conormalVariety(EmbeddedProjectiveVariety)
-- the conormal variety of a projective variety
cycleClass
-- determine the expression of the class of a cycle as a linear combination of Schubert classes
cycleClass(EmbeddedProjectiveVariety)
-- determine the expression of the class of a cycle as a linear combination of Schubert classes
decompose(MultiprojectiveVariety)
-- irreducible components of a variety
degree(MultiprojectiveVariety)
-- the degree of the variety
degree(MultirationalMap)
-- degree of a multi-rational map
degree(MultirationalMap,Option)
-- degree of a multi-rational map using a probabilistic approach
degreeMap(MultirationalMap)
-- degree of a multi-rational map
degrees(MultiprojectiveVariety)
-- degrees for the minimal generators
degreeSequence
-- the (multi)-degree sequence of a (multi)-rational map
degreeSequence(MultirationalMap)
-- the (multi)-degree sequence of a (multi)-rational map
degreeSequence(RationalMap)
-- the (multi)-degree sequence of a (multi)-rational map
describe(MultiprojectiveVariety)
-- describe a multi-projective variety
describe(MultirationalMap)
-- describe a multi-rational map
dim(MultiprojectiveVariety)
-- the dimension of the variety
dual(EmbeddedProjectiveVariety)
-- the variety projectively dual to an embedded projective variety
EmbeddedProjectiveVariety
-- the class of all embedded projective varieties
EmbeddedProjectiveVariety !
-- print a more detailed description of an embedded projective variety
EmbeddedProjectiveVariety ++ EmbeddedProjectiveVariety
-- join of projective varieties
EmbeddedProjectiveVariety <=== EmbeddedProjectiveVariety
-- try to find an isomorphism between two projective varieties
EmbeddedProjectiveVariety ===> EmbeddedProjectiveVariety
-- try to find an isomorphism between two projective varieties
entries(MultirationalMap)
-- list the defining polynomials of a rational map
euler(MultiprojectiveVariety)
-- topological Euler characteristic of a (smooth) multi-projective variety
factor(MultirationalMap)
-- the list of rational maps defining a multi-rational map
Fano(EmbeddedProjectiveVariety)
-- Fano scheme of a projective variety
Fano(ZZ,EmbeddedProjectiveVariety)
-- Fano scheme of a projective variety
fiberProduct
-- fiber product of multi-projective varieties
fiberProduct(RationalMap,RationalMap)
-- fiber product of multi-projective varieties
forceImage(MultirationalMap,MultiprojectiveVariety)
-- declare which is the image of a multi-rational map
forceImage(MultirationalMap,ZZ)
-- declare which is the image of a multi-rational map
GG
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
GG(EmbeddedProjectiveVariety)
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
GG(Ring)
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
GG(Ring,ZZ,ZZ)
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
GG(ZZ,EmbeddedProjectiveVariety)
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
GG(ZZ,MultirationalMap)
-- induced automorphism of the Grassmannian
GG(ZZ,RationalMap)
-- induced automorphism of the Grassmannian
GG(ZZ,ZZ)
-- the Grassmannian of k-dimensional linear subspaces of an n-dimensional projective space
graph(MultirationalMap)
-- the graph of a multi-rational map
GrassmannianVariety
-- the class of all Grassmannians of linear subspaces of projective spaces
hilbertPolynomial(EmbeddedProjectiveVariety)
-- the Hilbert polynomial of the variety
Hom(MultiprojectiveVariety,MultiprojectiveVariety)
-- get the hom-set of rational maps between two multi-projective varieties
Hom(MultiprojectiveVariety,Nothing)
-- get the hom-set of rational maps between two multi-projective varieties
Hom(MultiprojectiveVariety,Symbol)
-- get the hom-set of rational maps between two multi-projective varieties
Hom(Nothing,MultiprojectiveVariety)
-- get the hom-set of rational maps between two multi-projective varieties
Hom(Nothing,Nothing)
-- get the hom-set of rational maps between two multi-projective varieties
Hom(Nothing,Symbol)
-- get the hom-set of rational maps between two multi-projective varieties
ideal(MultiprojectiveVariety)
-- the defining ideal of the variety
image(MultirationalMap)
-- image of a multi-rational map
inverse(MultirationalMap)
-- inverse of a birational map
inverse2
-- inverse of a birational map using a faster algorithm for a special class of maps
inverse2(MultirationalMap)
-- inverse of a birational map using a faster algorithm for a special class of maps
isIsomorphism(MultirationalMap)
-- whether a birational map is an isomorphism
isMember(MultirationalMap,RAT)
-- test membership in a hom-set of rational maps
isMorphism(MultirationalMap)
-- whether a multi-rational map is a morphism
isSubset(MultiprojectiveVariety,MultiprojectiveVariety)
-- whether one variety is a subvariety of another
isWellDefined(MultirationalMap)
-- whether a multi-rational map is well-defined
linearlyNormalEmbedding
-- get the linearly normal embedding
linearlyNormalEmbedding(EmbeddedProjectiveVariety)
-- get the linearly normal embedding
linearSpan
-- the linear span of an embedded projective variety
linearSpan(EmbeddedProjectiveVariety)
-- the linear span of an embedded projective variety
linearSpan(List)
-- the linear span of an embedded projective variety
multidegree(MultiprojectiveVariety)
-- the multidegree of the variety
multidegree(MultirationalMap)
-- projective degrees of a multi-rational map
multidegree(ZZ,MultirationalMap)
-- i-th projective degree of a multi-rational map using a probabilistic approach
MultiprojectiveVarieties
-- Multi-projective varieties and multi-rational maps
MultiprojectiveVariety
-- the class of all multi-projective varieties
MultiprojectiveVariety % MultiprojectiveVariety
-- subvariety of a projective variety
MultiprojectiveVariety * MultiprojectiveVariety
-- intersection of two multi-projective varieties
MultiprojectiveVariety ** MultiprojectiveVariety
-- product of two multi-projective varieties
MultiprojectiveVariety ** Ring
-- change the coefficient ring of a multi-projective variety
MultiprojectiveVariety + MultiprojectiveVariety
-- union of two multi-projective varieties
MultiprojectiveVariety << MultiprojectiveVariety
-- force the change of the target in a multi-rational map
MultiprojectiveVariety == MultiprojectiveVariety
-- equality of multi-projective varieties
MultiprojectiveVariety \ MultiprojectiveVariety
-- difference of multi-projective varieties
MultiprojectiveVariety \\ MultiprojectiveVariety
-- difference of multi-projective varieties
MultiprojectiveVariety ^ ZZ
-- power of a multi-projective variety
MultirationalMap
-- the class of all multi-rational maps
multirationalMap
-- the multi-rational map defined by a list of rational maps
MultirationalMap * MultirationalMap
-- composition of multi-rational maps
MultirationalMap * RationalMap
-- composition of multi-rational maps
MultirationalMap ** Ring
-- change the coefficient ring of a multi-rational map
MultirationalMap << MultiprojectiveVariety
-- force the change of the target in a multi-rational map
MultirationalMap <==> MultirationalMap
-- equality of multi-rational maps with checks on internal data
MultirationalMap == MultirationalMap
-- equality of multi-rational maps
MultirationalMap == RationalMap
-- equality of multi-rational maps
MultirationalMap == ZZ
-- equality of multi-rational maps
MultirationalMap ^ ZZ
-- composition of multi-rational maps
MultirationalMap ^*
-- inverse image via a multi-rational map
MultirationalMap ^** MultiprojectiveVariety
-- inverse image via a multi-rational map
MultirationalMap | List
-- restriction of a multi-rational map
MultirationalMap | MultiprojectiveVariety
-- restriction of a multi-rational map
MultirationalMap | MultirationalMap
-- product of multi-rational maps
MultirationalMap | RationalMap
-- product of multi-rational maps
MultirationalMap || List
-- restriction of a multi-rational map
MultirationalMap || MultiprojectiveVariety
-- restriction of a multi-rational map
MultirationalMap || MultirationalMap
-- product of multi-rational maps
MultirationalMap || RationalMap
-- product of multi-rational maps
MultirationalMap MultiprojectiveVariety
-- direct image via a multi-rational map
multirationalMap(List)
-- the multi-rational map defined by a list of rational maps
multirationalMap(List,MultiprojectiveVariety)
-- the multi-rational map defined by a list of rational maps
multirationalMap(MultiprojectiveVariety)
-- identity map
multirationalMap(MultiprojectiveVariety,MultiprojectiveVariety)
-- get the natural inclusion
multirationalMap(MultirationalMap,MultiprojectiveVariety)
-- change the target of a multi-rational map
multirationalMap(RationalMap)
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
parametrize(MultiprojectiveVariety)
-- try to get a parametrization of a multi-projective variety
permute(MultiprojectiveVariety,List)
-- permute the factors of the ambient multi-projective space
point(MultiprojectiveVariety)
-- pick a random rational point on a multi-projective variety
PP
-- product of projective spaces
projectionMaps
-- projections of a multi-projective variety
projectionMaps(MultiprojectiveVariety)
-- projections of a multi-projective variety
projectionMaps(MultirationalMap)
-- get the compositions of the multi-rational map with the projections of the target
projections
-- projections of a multi-projective variety
projections(MultiprojectiveVariety)
-- projections of a multi-projective variety
projectiveDegrees(MultirationalMap)
-- projective degrees of a multi-rational map
projectiveVariety
-- the closed multi-projective subvariety defined by a multi-homogeneous ideal
projectiveVariety(...,MinimalGenerators=>...)
-- whether to trim the ideal (intended for internal use only)
projectiveVariety(...,Saturate=>...)
-- whether to compute the multi-saturation of the ideal (intended for internal use only)
projectiveVariety(Ideal)
-- the closed multi-projective subvariety defined by a multi-homogeneous ideal
projectiveVariety(List,List,Ring)
-- the Segre-Veronese variety
projectiveVariety(List,Ring)
-- product of projective spaces
projectiveVariety(Matrix)
-- the closed multi-projective subvariety defined by a multi-homogeneous ideal
projectiveVariety(MultidimensionalMatrix)
-- the multi-projective variety defined by a multi-dimensional matrix
projectiveVariety(Ring)
-- the closed multi-projective subvariety defined by a multi-homogeneous ideal
projectiveVariety(RingElement)
-- the closed multi-projective subvariety defined by a multi-homogeneous ideal
projectiveVariety(ZZ,Ring)
-- product of projective spaces
projectiveVariety(ZZ,ZZ,Ring)
-- the Segre-Veronese variety
random(List,MultiprojectiveVariety)
-- get a random hypersurface of given multi-degree containing a multi-projective variety
random(MultiprojectiveVariety)
-- apply a random automorphism of the ambient multi-projective space
random(ZZ,MultiprojectiveVariety)
-- get a random hypersurface of given multi-degree containing a multi-projective variety
RAT
-- the hom-sets of rational maps between two multi-projective varieties
RAT List
-- define a multi-rational map
RAT MultiprojectiveVariety
-- rational map defined by a linear system of hypersurfaces through a variety
RAT Sequence
-- rational map defined by a linear system of hypersurfaces through a variety
RAT Tally
-- rational map defined by an effective divisor
RationalMap * MultirationalMap
-- composition of multi-rational maps
RationalMap == MultirationalMap
-- equality of multi-rational maps
RationalMap ^** EmbeddedProjectiveVariety
-- inverse image via a multi-rational map
RationalMap | MultiprojectiveVariety
-- restriction of a multi-rational map
RationalMap | MultirationalMap
-- product of multi-rational maps
RationalMap | RationalMap
-- product of multi-rational maps
RationalMap || MultiprojectiveVariety
-- restriction of a multi-rational map
RationalMap || MultirationalMap
-- product of multi-rational maps
RationalMap || RationalMap
-- product of multi-rational maps
RationalMap MultiprojectiveVariety
-- direct image via a multi-rational map
rationalMap(EmbeddedProjectiveVariety,Tally,ZZ)
-- rational map defined by an effective divisor
rationalMap(List,MultiprojectiveVariety)
-- the multi-rational map defined by a list of rational maps
rationalMap(MultiprojectiveVariety)
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
rationalMap(MultiprojectiveVariety,List)
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
rationalMap(MultiprojectiveVariety,MultiprojectiveVariety)
-- get the natural inclusion
rationalMap(MultiprojectiveVariety,Tally)
-- rational map defined by an effective divisor
rationalMap(MultiprojectiveVariety,Tally,List)
-- rational map defined by an effective divisor
rationalMap(MultiprojectiveVariety,ZZ)
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
rationalMap(MultiprojectiveVariety,ZZ,ZZ)
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
rationalMap(MultirationalMap)
-- the multi-rational map defined by a list of rational maps
rationalMap(MultirationalMap,MultiprojectiveVariety)
-- change the target of a multi-rational map
ring(MultiprojectiveVariety)
-- the coordinate ring of the variety
Saturate
-- whether to compute the multi-saturation of the ideal (intended for internal use only)
schubertCycle
-- take a random Schubert cycle
schubertCycle(...,Standard=>...)
-- take a random Schubert cycle
schubertCycle(VisibleList,GrassmannianVariety)
-- take a random Schubert cycle
sectionalGenus
-- the sectional genus of an embedded projective variety
sectionalGenus(EmbeddedProjectiveVariety)
-- the sectional genus of an embedded projective variety
segre(MultiprojectiveVariety)
-- the Segre embedding of the variety
segre(MultirationalMap)
-- the composition of a multi-rational map with the Segre embedding of the target
segreEmbedding
-- the Segre embedding of the variety
segreEmbedding(MultiprojectiveVariety)
-- the Segre embedding of the variety
shape(MultiprojectiveVariety)
-- shape of the ambient multi-projective space of a multi-projective variety
shortcuts
-- Some convenient shortcuts for multi-rational maps consisting of a single rational map
show(MultirationalMap)
-- display a multi-rational map
show(RationalMap)
-- display a multi-rational map
singularLocus(MultiprojectiveVariety)
-- the singular locus of the variety
source(MultirationalMap)
-- the source for a multi-rational map
sumUp
-- print a more detailed description of an embedded projective variety
sumUp(EmbeddedProjectiveVariety)
-- print a more detailed description of an embedded projective variety
super(MultirationalMap)
-- get the multi-rational map whose target is a product of projective spaces
support(MultiprojectiveVariety)
-- support of a multi-projective variety
tangentCone(EmbeddedProjectiveVariety,EmbeddedProjectiveVariety)
-- tangent cone to a projective variety at a point
tangentialChowForm(EmbeddedProjectiveVariety,ZZ)
-- higher Chow forms of a projective variety
tangentSpace
-- tangent space to a projective variety at a point
tangentSpace(EmbeddedProjectiveVariety,EmbeddedProjectiveVariety)
-- tangent space to a projective variety at a point
target(MultirationalMap)
-- the target for a multi-rational map
topComponents(MultiprojectiveVariety)
-- union of the top dimensional components of a multi-projective variety
toRationalMap
-- convert a multi-rational map consisting of a single rational map to a standard rational map
toRationalMap(MultirationalMap)
-- convert a multi-rational map consisting of a single rational map to a standard rational map
trim(MultirationalMap)
-- trim the target of a multi-rational map
trim(RationalMap)
-- trim the target of a multi-rational map
variety(EmbeddedProjectiveVariety)
-- convert an embedded projective variety into a built-in projective variety
WeightedProjectiveVariety
-- the class of all weighted projective varieties
WeightedRationalMap
-- the class of all weighted-rational maps
ZZ == MultirationalMap
-- equality of multi-rational maps
ZZ _ MultiprojectiveVariety
-- identity map