Results 51 to 60 of about 1,308 (81)

Some bounds on the coupon collector problem with universal coupon

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
We consider a generalization of the coupon collector problem with unequal probabilities, such that there are two additional coupons in the coupon set: one that speeds up the coupon collection process, and the one that slows it down.
Jocković Jelena, Todić Bojana
doaj   +1 more source

Rank three matroids are Rayleigh

open access: yes, 2004
A Rayleigh matroid is one which satisfies a set of inequalities analogous to the Rayleigh monotonicity property of linear resistive electrical networks. We show that every matroid of rank three satisfies these inequalities.Comment: 11 pages, 3 figures, 3
Wagner, David G.
core   +2 more sources

The perimeter of uniform and geometric words: a probabilistic analysis

open access: yes, 2018
Let a word be a sequence of $n$ i.i.d. integer random variables. The perimeter $P$ of the word is the number of edges of the word, seen as a polyomino. In this paper, we present a probabilistic approach to the computation of the moments of $P$.
Louchard, Guy
core  

Solving the migration-recombination equation from a genealogical point of view. [PDF]

open access: yesJ Math Biol, 2021
Alberti F   +3 more
europepmc   +1 more source

Symmetric inclusion-exclusion

open access: yes, 2005
One form of the inclusion-exclusion principle asserts that if A and B are functions of finite sets then A(S) is the sum of B(T) over all subsets T of S if and only if B(S) is the sum of (-1)^|S-T| A(T) over all subsets T of S. If we replace B(S) with (-
An Bk, Ira M. Gessel
core   +2 more sources

Limit theorem for the Robin Hood game. [PDF]

open access: yesStat Probab Lett, 2019
Angel O, Matzavinos A, Roitershtein A.
europepmc   +1 more source

The distribution of Rademacher sums

open access: yes, 1990
S. Montgomery-Smith
semanticscholar   +1 more source

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