DeRhamComplex(CoefRing, listIndVar)¶
derham.spad line 278 [edit on github]
CoefRing: Join(Ring, Comparable)
The deRham complex of Euclidean space, that is, the class of differential forms of arbitrary degree over a coefficient ring. See Flanders, Harley, Differential Forms, With Applications to the Physical Sciences, New York, Academic Press, 1963.
- 0: %
from AbelianMonoid
- 1: %
from MagmaWithUnit
- *: (%, %) -> %
from Magma
- *: (Expression CoefRing, %) -> %
from LeftModule Expression CoefRing
- *: (Integer, %) -> %
from AbelianGroup
- *: (NonNegativeInteger, %) -> %
from AbelianMonoid
- *: (PositiveInteger, %) -> %
from AbelianSemiGroup
- +: (%, %) -> %
from AbelianSemiGroup
- -: % -> %
from AbelianGroup
- -: (%, %) -> %
from AbelianGroup
- ^: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- ^: (%, PositiveInteger) -> %
from Magma
- annihilate?: (%, %) -> Boolean
from Rng
- antiCommutator: (%, %) -> %
- associator: (%, %, %) -> %
from NonAssociativeRng
- characteristic: () -> NonNegativeInteger
from NonAssociativeRing
- coefficient: (%, %) -> Expression CoefRing
coefficient(df, u)
, wheredf
is a differential form, returns the coefficient ofdf
containing the basis termu
if such a term exists, and 0 otherwise.
- coerce: % -> OutputForm
from CoercibleTo OutputForm
- coerce: Expression CoefRing -> %
from LeftAlgebra Expression CoefRing
- coerce: Integer -> %
from NonAssociativeRing
- commutator: (%, %) -> %
from NonAssociativeRng
- degree: % -> NonNegativeInteger
degree(df)
returns the homogeneous degree of differential formdf
.
- exteriorDifferential: % -> %
exteriorDifferential(df)
returns the exterior derivative (gradient, curl, divergence, …) of the differential formdf
.
- generator: NonNegativeInteger -> %
generator(n)
returns then
th basis term for a differential form.
- homogeneous?: % -> Boolean
homogeneous?(df)
tests if all of the terms of differential formdf
have the same degree.
- latex: % -> String
from SetCategory
- leadingBasisTerm: % -> %
leadingBasisTerm(df)
returns the leading basis term of differential formdf
.
- leadingCoefficient: % -> Expression CoefRing
leadingCoefficient(df)
returns the leading coefficient of differential formdf
.
- leftPower: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- leftPower: (%, PositiveInteger) -> %
from Magma
- leftRecip: % -> Union(%, failed)
from MagmaWithUnit
- map: (Expression CoefRing -> Expression CoefRing, %) -> %
map(f, df)
replaces each coefficientx
of differential formdf
byf(x)
.
- one?: % -> Boolean
from MagmaWithUnit
- opposite?: (%, %) -> Boolean
from AbelianMonoid
- recip: % -> Union(%, failed)
from MagmaWithUnit
- reductum: % -> %
reductum(df)
, wheredf
is a differential form, returnsdf
minus the leading term ofdf
ifdf
has two or more terms, and 0 otherwise.
- retract: % -> Expression CoefRing
from RetractableTo Expression CoefRing
- retractable?: % -> Boolean
retractable?(df)
tests if differential formdf
is a 0-form, i.e. if degree(df
) = 0.
- retractIfCan: % -> Union(Expression CoefRing, failed)
from RetractableTo Expression CoefRing
- rightPower: (%, NonNegativeInteger) -> %
from MagmaWithUnit
- rightPower: (%, PositiveInteger) -> %
from Magma
- rightRecip: % -> Union(%, failed)
from MagmaWithUnit
- sample: %
from AbelianMonoid
- subtractIfCan: (%, %) -> Union(%, failed)
- totalDifferential: Expression CoefRing -> %
totalDifferential(x)
returns the total differential (gradient) form for elementx
.
- zero?: % -> Boolean
from AbelianMonoid
BiModule(%, %)
CoercibleFrom Expression CoefRing
LeftAlgebra Expression CoefRing
LeftModule Expression CoefRing
RetractableTo Expression CoefRing