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  2. Map (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Map_(mathematics)

    A map is a function, as in the association of any of the four colored shapes in X to its color in Y. In mathematics, a map or mapping is a function in its general sense. [1] These terms may have originated as from the process of making a geographical map: mapping the Earth surface to a sheet of paper. [2]

  3. Multilinear map - Wikipedia

    en.wikipedia.org/wiki/Multilinear_map

    A multilinear map of one variable is a linear map, and of two variables is a bilinear map. More generally, for any nonnegative integer , a multilinear map of k variables is called a k-linear map. If the codomain of a multilinear map is the field of scalars, it is called a multilinear form.

  4. Open and closed maps - Wikipedia

    en.wikipedia.org/wiki/Open_and_closed_maps

    By definition, the map : is a relatively closed map if and only if the surjection: ⁡ is a strongly closed map. If in the open set definition of " continuous map " (which is the statement: "every preimage of an open set is open"), both instances of the word "open" are replaced with "closed" then the statement of results ("every preimage of a ...

  5. Mathematical object - Wikipedia

    en.wikipedia.org/wiki/Mathematical_object

    In mathematics, a map or mapping, is a function in the general sense; here as in the association of any of the four colored shapes in X to its color in Y. [29] Frege famously distinguished between functions and objects . [ 30 ]

  6. Canonical map - Wikipedia

    en.wikipedia.org/wiki/Canonical_map

    In mathematics, a canonical map, also called a natural map, is a map or morphism between objects that arises naturally from the definition or the construction of the objects. Often, it is a map which preserves the widest amount of structure. A choice of a canonical map sometimes depends on a convention (e.g., a sign convention).

  7. Linear map - Wikipedia

    en.wikipedia.org/wiki/Linear_map

    In mathematics, and more specifically in linear algebra, a linear map (also called a linear mapping, linear transformation, vector space homomorphism, or in some contexts linear function) is a mapping between two vector spaces that preserves the operations of vector addition and scalar multiplication.

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  9. Thematic map - Wikipedia

    en.wikipedia.org/wiki/Thematic_map

    A thematic map is a type of map that portrays the geographic pattern of a particular subject matter (theme) in a geographic area.