Results 1 to 10 of about 1,392 (94)

Around the root of random multidimensional quadtrees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We analyse the distribution of the root pattern of randomly grown multidimensional point quadtrees. In particular, exact, recursive and asymptotic formulas are given for the expected arity of the root.
Gilbert Labelle   +2 more
doaj   +1 more source

Optimal Prefix and Suffix Queries on Texts [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
In this paper, we study a restricted version of the position restricted pattern matching problem introduced and studied by Mäkinen and Navarro [Position-Restricted Substring Searching, LATIN 2006].
Maxime Crochemore   +2 more
doaj   +1 more source

Some exactly solvable models of urn process theory [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We establish a fundamental isomorphism between discrete-time balanced urn processes and certain ordinary differential systems, which are nonlinear, autonomous, and of a simple monomial form.
Philippe Flajolet   +2 more
doaj   +1 more source

Multivariate generalizations of the Foata-Schützenberger equidistribution [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
A result of Foata and Schützenberger states that two statistics on permutations, the number of inversions and the inverse major index, have the same distribution on a descent class.
Florent Hivert   +2 more
doaj   +1 more source

Constrained exchangeable partitions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
For a class of random partitions of an infinite set a de Finetti-type representation is derived, and in one special case a central limit theorem for the number of blocks is shown.
Alexander Gnedin
doaj   +1 more source

Random assignment and shortest path problems [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We explore a similarity between the $n$ by $n$ random assignment problem and the random shortest path problem on the complete graph on $n+1$ vertices. This similarity is a consequence of the proof of the Parisi formula for the assignment problem given by
Johan Wästlund
doaj   +1 more source

The first ascent of size $d$ or more in compositions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
A composition of a positive integer $n$ is a finite sequence of positive integers $a_1, a_2, \ldots, a_k$ such that $a_1+a_2+ \cdots +a_k=n$. Let $d$ be a fixed nonnegative integer.
Charlotte Brennan, Arnold Knopfmacher
doaj   +1 more source

Extended Rate, more GFUN [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
We present a software package that guesses formulas for sequences of, for example, rational numbers or rational functions, given the first few terms.
Martin Rubey
doaj   +1 more source

Optimal combinations of imperfect objects [PDF]

open access: yes, 2002
We address the question of how to make best use of imperfect objects, such as defective analog and digital components. We show that perfect, or near-perfect, devices can be constructed by taking combinations of such defects.
B. Derrida   +19 more
core   +1 more source

Parameterized Algorithmics for Computational Social Choice: Nine Research Challenges [PDF]

open access: yes, 2014
Computational Social Choice is an interdisciplinary research area involving Economics, Political Science, and Social Science on the one side, and Mathematics and Computer Science (including Artificial Intelligence and Multiagent Systems) on the other ...
Bredereck, Robert   +5 more
core   +14 more sources

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