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For a given n the elements of are then called homogeneous elements of degree n. Graded vector spaces are common. For example the set of all polynomials in one or several variables forms a graded vector space, where the homogeneous elements of degree n are exactly the linear combinations of monomials of degree n.
Elements of R that lie inside for some are said to be homogeneous of grade i. The previously defined notion of "graded ring" now becomes the same thing as an N {\displaystyle \mathbb {N} } -graded ring, where N {\displaystyle \mathbb {N} } is the monoid of natural numbers under addition.
The Nijenhuis–Richardson bracket can be defined on the vector valued forms Ω * (M, T(M)) on a smooth manifold M in a similar way. Vector valued forms act as derivations on the supercommutative ring Ω * (M) of forms on M by taking K to the derivation i K, and the Nijenhuis–Richardson bracket then corresponds to the commutator of two derivations.
In mathematics, the irrelevant ideal is the ideal of a graded ring generated by the homogeneous elements of degree greater than zero. It corresponds to the origin in the affine space, which cannot be mapped to a point in the projective space.
There is a common generalization of the Schouten–Nijenhuis bracket for alternating multivector fields and the Frölicher–Nijenhuis bracket due to Vinogradov (1990).. A version of the Schouten–Nijenhuis bracket can also be defined for symmetric multivector fields in a similar way.
In mathematics, a homogeneous function is a function of several variables such that the following holds: If each of the function's arguments is multiplied by the same scalar, then the function's value is multiplied by some power of this scalar; the power is called the degree of homogeneity, or simply the degree.
"Ordered" means that the elements of the data type have some kind of explicit order to them, where an element can be considered "before" or "after" another element. This order is usually determined by the order in which the elements are added to the structure, but the elements can be rearranged in some contexts, such as sorting a list. For a ...
Let H be the homogeneous ideal generated by the homogeneous parts of highest degree of the elements of I. If I is homogeneous, then H=I. Finally let B be a Gröbner basis of I for a monomial ordering refining the total degree partial ordering and G the (homogeneous) ideal generated by the leading monomials of the elements of B.