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  2. Partition function (number theory) - Wikipedia

    en.wikipedia.org/wiki/Partition_function_(number...

    This asymptotic formula was first obtained by G. H. Hardy and Ramanujan in 1918 and independently by J. V. Uspensky in 1920. Considering p ( 1000 ) {\displaystyle p(1000)} , the asymptotic formula gives about 2.4402 × 10 31 {\displaystyle 2.4402\times 10^{31}} , reasonably close to the exact answer given above (1.415% larger than the true value).

  3. Hardy–Ramanujan–Littlewood circle method - Wikipedia

    en.wikipedia.org/wiki/HardyRamanujan...

    The initial idea is usually attributed to the work of Hardy with Srinivasa Ramanujan a few years earlier, in 1916 and 1917, on the asymptotics of the partition function.It was taken up by many other researchers, including Harold Davenport and I. M. Vinogradov, who modified the formulation slightly (moving from complex analysis to exponential sums), without changing the broad lines.

  4. Ramanujan's congruences - Wikipedia

    en.wikipedia.org/wiki/Ramanujan's_congruences

    After Ramanujan died in 1920, G. H. Hardy extracted ... It is seen to have dimension 0 only in the cases where ℓ = 5, 7 or 11 and since the partition function ...

  5. Integer partition - Wikipedia

    en.wikipedia.org/wiki/Integer_partition

    Srinivasa Ramanujan discovered that the partition function has nontrivial patterns in modular arithmetic, now known as Ramanujan's congruences. For instance, whenever the decimal representation of n {\displaystyle n} ends in the digit 4 or 9, the number of partitions of n {\displaystyle n} will be divisible by 5.

  6. Hardy–Ramanujan theorem - Wikipedia

    en.wikipedia.org/wiki/HardyRamanujan_theorem

    In mathematics, the HardyRamanujan theorem, proved by Ramanujan and checked by Hardy [1] states that the normal order of the number () of distinct prime factors of a number is ⁡ ⁡. Roughly speaking, this means that most numbers have about this number of distinct prime factors.

  7. Crank of a partition - Wikipedia

    en.wikipedia.org/wiki/Crank_of_a_partition

    Let n be a non-negative integer and let p(n) denote the number of partitions of n (p(0) is defined to be 1).Srinivasa Ramanujan in a paper [3] published in 1918 stated and proved the following congruences for the partition function p(n), since known as Ramanujan congruences.

  8. Rank of a partition - Wikipedia

    en.wikipedia.org/wiki/Rank_of_a_partition

    then the partition λ is called a strict partition of n. The integers λ k, λ k − 1, ..., λ 1 are the parts of the partition. The number of parts in the partition λ is k and the largest part in the partition is λ k. The rank of the partition λ (whether ordinary or strict) is defined as λ k − k. [1]

  9. List of theorems - Wikipedia

    en.wikipedia.org/wiki/List_of_theorems

    Hardy's theorem (complex analysis) Hardy–Littlewood maximal theorem (real analysis) Hardy–Littlewood tauberian theorem (mathematical analysis) HardyRamanujan theorem (number theory) Harish–Chandra theorem (representation theory) Harish–Chandra's regularity theorem (representation theory) Harnack's curve theorem (real algebraic geometry)