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  2. Base change theorems - Wikipedia

    en.wikipedia.org/wiki/Base_change_theorems

    The proper base change theorem is needed to show that this is well-defined, i.e., independent (up to isomorphism) of the choice of the compactification. Moreover, again in analogy to the case of sheaves on a topological space, a base change formula for g ∗ {\displaystyle g_{*}} vs. R f ! {\displaystyle Rf_{!}} does hold for non-proper maps f .

  3. Change of base - Wikipedia

    en.wikipedia.org/wiki/Change_of_base

    In mathematics, change of base can mean any of several things: Changing numeral bases, such as converting from base 2 to base 10 . This is known as base conversion. The logarithmic change-of-base formula, one of the logarithmic identities used frequently in algebra and calculus.

  4. Change of basis - Wikipedia

    en.wikipedia.org/wiki/Change_of_basis

    This change can be computed by substituting the "old" coordinates for their expressions in terms of the "new" coordinates. More precisely, if f(x) is the expression of the function in terms of the old coordinates, and if x = Ay is the change-of-base formula, then f(Ay) is the expression of the same function in terms of the new coordinates.

  5. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    Barwise compactness theorem (mathematical logic) Base change theorems (algebraic geometry) Basel problem (mathematical analysis) Bass's theorem (group theory) Basu's theorem ; Bauer–Fike theorem (spectral theory) Bayes' theorem (probability) Beatty's theorem (Diophantine approximation) Beauville–Laszlo theorem (vector bundles)

  6. A Mathematician's Apology - Wikipedia

    en.wikipedia.org/wiki/A_Mathematician's_Apology

    A Mathematician's Apology 1st edition Author G. H. Hardy Subjects Philosophy of mathematics, mathematical beauty Publisher Cambridge University Press Publication date 1940 OCLC 488849413 A Mathematician's Apology is a 1940 essay by British mathematician G. H. Hardy which defends the pursuit of mathematics for its own sake. Central to Hardy's "apology" – in the sense of a formal justification ...

  7. Base change - Wikipedia

    en.wikipedia.org/wiki/Base_change

    In mathematics, base change may mean: Base change map in algebraic geometry; Fiber product of schemes in algebraic geometry; Change of base (disambiguation) ...

  8. Robert Langlands - Wikipedia

    en.wikipedia.org/wiki/Robert_Langlands

    Robert Phelan Langlands, CC FRS FRSC (/ ˈ l æ ŋ l ə n d z /; born October 6, 1936) is a Canadian mathematician. [1] [2] He is best known as the founder of the Langlands program, a vast web of conjectures and results connecting representation theory and automorphic forms to the study of Galois groups in number theory, [3] [4] for which he received the 2018 Abel Prize.

  9. Base change (scheme theory) - Wikipedia

    en.wikipedia.org/?title=Base_change_(scheme...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Base_change_(scheme_theory)&oldid=826060195"