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  2. Adjoint functors - Wikipedia

    en.wikipedia.org/wiki/Adjoint_functors

    If the functor F : D → C has two right adjoints G and G′, then G and G′ are naturally isomorphic. The same is true for left adjoints. Conversely, if F is left adjoint to G, and G is naturally isomorphic to G′ then F is also left adjoint to G′. More generally, if 〈F, G, ε, η〉 is an adjunction (with counit–unit (ε,η)) and σ ...

  3. Adjoint - Wikipedia

    en.wikipedia.org/wiki/Adjoint

    The upper and lower adjoints of a Galois connection in order theory; The adjoint of a differential operator with general polynomial coefficients; ... Mobile view ...

  4. Adjoint representation - Wikipedia

    en.wikipedia.org/wiki/Adjoint_representation

    In mathematics, the adjoint representation (or adjoint action) of a Lie group G is a way of representing the elements of the group as linear transformations of the group's Lie algebra, considered as a vector space.

  5. Formal criteria for adjoint functors - Wikipedia

    en.wikipedia.org/wiki/Formal_criteria_for_ad...

    In category theory, a branch of mathematics, the formal criteria for adjoint functors are criteria for the existence of a left or right adjoint of a given functor.. One criterion is the following, which first appeared in Peter J. Freyd's 1964 book Abelian Categories, [1] an Introduction to the Theory of Functors:

  6. Adjugate matrix - Wikipedia

    en.wikipedia.org/wiki/Adjugate_matrix

    In linear algebra, the adjugate or classical adjoint of a square matrix A, adj(A), is the transpose of its cofactor matrix. [1] [2] It is occasionally known as adjunct matrix, [3] [4] or "adjoint", [5] though that normally refers to a different concept, the adjoint operator which for a matrix is the conjugate transpose.

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Tuesday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.

  8. Tensor-hom adjunction - Wikipedia

    en.wikipedia.org/wiki/Tensor-hom_adjunction

    In mathematics, the tensor-hom adjunction is that the tensor product and hom-functor ⁡ (,) form an adjoint pair: ⁡ (,) ⁡ (, ⁡ (,)). This is made more precise below. The order of terms in the phrase "tensor-hom adjunction" reflects their relationship: tensor is the left adjoint, while hom is the right adjoint.

  9. The ‘we listen and we don’t judge’ trend, unpacked by a ...

    www.aol.com/listen-don-t-judge-trend-055710829.html

    What is the "we listen and we don't judge" trend? Couples tell us if it led to any breakthroughs and a psychologist says if it's healthy.