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  2. Homogeneous function - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_function

    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.

  3. Contact geometry - Wikipedia

    en.wikipedia.org/wiki/Contact_geometry

    The 1-form λ does not descend to a genuine 1-form on M. However, it is homogeneous of degree 1, and so it defines a 1-form with values in the line bundle O(1), which is the dual of the fibrewise tautological line bundle of M. The kernel of this 1-form defines a contact distribution. Energy surfaces

  4. Graded structure - Wikipedia

    en.wikipedia.org/wiki/Graded_structure

    In mathematics, the term "graded" has a number of meanings, mostly related: . In abstract algebra, it refers to a family of concepts: . An algebraic structure is said to be -graded for an index set if it has a gradation or grading, i.e. a decomposition into a direct sum = of structures; the elements of are said to be "homogeneous of degree i ".

  5. Homothetic preferences - Wikipedia

    en.wikipedia.org/wiki/Homothetic_preferences

    In consumer theory, a consumer's preferences are called homothetic if they can be represented by a utility function which is homogeneous of degree 1. [1]: 146 For example, in an economy with two goods ,, homothetic preferences can be represented by a utility function that has the following property: for every >:

  6. Homogeneous differential equation - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_differential...

    A differential equation can be homogeneous in either of two respects. A first order differential equation is said to be homogeneous if it may be written (,) = (,), where f and g are homogeneous functions of the same degree of x and y. [1] In this case, the change of variable y = ux leads to an equation of the form

  7. Homogeneous polynomial - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_polynomial

    In mathematics, a homogeneous polynomial, sometimes called quantic in older texts, is a polynomial whose nonzero terms all have the same degree. [1] For example, x 5 + 2 x 3 y 2 + 9 x y 4 {\displaystyle x^{5}+2x^{3}y^{2}+9xy^{4}} is a homogeneous polynomial of degree 5, in two variables; the sum of the exponents in each term is always 5.

  8. Homogeneous distribution - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_distribution

    In mathematics, a homogeneous distribution is a distribution S on Euclidean space R n or R n \ {0} that is homogeneous in the sense that, roughly speaking, = ()for all t > 0.. More precisely, let : / be the scalar division operator on R n.

  9. Graded vector space - Wikipedia

    en.wikipedia.org/wiki/Graded_vector_space

    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.