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  2. Bertrand's theorem - Wikipedia

    en.wikipedia.org/wiki/Bertrand's_theorem

    Joseph Bertrand. In classical mechanics, Bertrand's theorem states that among central-force potentials with bound orbits, there are only two types of central-force (radial) scalar potentials with the property that all bound orbits are also closed orbits.

  3. Proof of Bertrand's postulate - Wikipedia

    en.wikipedia.org/wiki/Proof_of_Bertrand's_postulate

    In mathematics, Bertrand's postulate (now a theorem) states that, for each , there is a prime such that < <.First conjectured in 1845 by Joseph Bertrand, [1] it was first proven by Chebyshev, and a shorter but also advanced proof was given by Ramanujan.

  4. Bertrand's postulate - Wikipedia

    en.wikipedia.org/wiki/Bertrand's_postulate

    In number theory, Bertrand's postulate is the theorem that for any integer >, there exists at least one prime number with n < p < 2 n − 2. {\displaystyle n<p<2n-2.} A less restrictive formulation is: for every n > 1 {\displaystyle n>1} , there is always at least one prime p {\displaystyle p} such that

  5. Bertrand theorem - Wikipedia

    en.wikipedia.org/?title=Bertrand_theorem&redirect=no

    Download as PDF; Printable version; From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Bertrand's theorem; Retrieved from "https: ...

  6. Bertrand's ballot theorem - Wikipedia

    en.wikipedia.org/wiki/Bertrand's_ballot_theorem

    Clearly the theorem is true if p > 0 and q = 0 when the probability is 1, given that the first candidate receives all the votes; it is also true when p = q > 0 as we have just seen. Assume it is true both when p = a − 1 and q = b , and when p = a and q = b − 1, with a > b > 0.

  7. Classical Mechanics (Goldstein) - Wikipedia

    en.wikipedia.org/wiki/Classical_Mechanics...

    In the second edition, Goldstein corrected all the errors that had been pointed out, added a new chapter on perturbation theory, a new section on Bertrand's theorem, and another on Noether's theorem. Other arguments and proofs were simplified and supplemented.

  8. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    Bertini's theorem (algebraic geometry) Bertrand–Diquet–Puiseux theorem (differential geometry) Bertrand's ballot theorem (probability theory, combinatorics) Bertrand's postulate (number theory) Besicovitch covering theorem (mathematical analysis) Betti's theorem ; Beurling–Lax theorem (Hardy spaces) Bézout's theorem (algebraic geometry)

  9. Category:Theorems in combinatorics - Wikipedia

    en.wikipedia.org/wiki/Category:Theorems_in...

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. ... Baranyai's theorem; Bertrand's ballot theorem; Bondy's theorem;