Results 51 to 60 of about 939,183 (156)

A Danzer set for Axis Parallel Boxes [PDF]

open access: yes, 2015
We present concrete constructions of discrete sets in $\mathbb{R}^d$ ($d\ge 2$) that intersect every aligned box of volume $1$ in $\mathbb{R}^d$, and which have optimal growth rate $O(T^d)$
Simmons, David, Solomon, Yaar
core   +3 more sources

A new method for computing asymptotics of diagonal coefficients of multivariate generating functions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
Let $\sum_{\mathbf{n} \in \mathbb{N}^d} F_{\mathbf{n}} \mathbf{x}^{\mathbf{n}}$ be a multivariate generating function that converges in a neighborhood of the origin of $\mathbb{C}^d$. We present a new, multivariate method for computing the asymptotics of
Alexander Raichev, Mark C. Wilson
doaj   +1 more source

An Analysis of Geometric Semantic Crossover: A Computational Geometry Approach

open access: yesInternational Joint Conference on Computational Intelligence, 2016
Geometric semantic operators have recently shown their ability to outperform standard genetic operators on different complex real world problems. Nonetheless, they are affected by drawbacks. In this paper, we focus on one of these drawbacks, i.e.
M. Castelli   +5 more
semanticscholar   +1 more source

Enumerating Foldings and Unfoldings between Polygons and Polytopes [PDF]

open access: yes, 2001
We pose and answer several questions concerning the number of ways to fold a polygon to a polytope, and how many polytopes can be obtained from one polygon; and the analogous questions for unfolding polytopes to polygons.
Demaine, Erik D.   +3 more
core   +2 more sources

Edge-Unfolding Nearly Flat Convex Caps [PDF]

open access: yes, 2018
The main result of this paper is a proof that a nearly flat, acutely triangulated convex cap C in ℝ3 has an edge-unfolding to a non-overlapping polygon in the plane. A convex cap is the intersection of the surface of a convex polyhedron and a halfspace.
O\u27Rourke, Joseph
core   +2 more sources

The average position of the first maximum in a sample of geometric random variables [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
We consider samples of n geometric random variables $(Γ _1, Γ _2, \dots Γ _n)$ where $\mathbb{P}\{Γ _j=i\}=pq^{i-1}$, for $1≤j ≤n$, with $p+q=1$. The parameter we study is the position of the first occurrence of the maximum value in a such a sample.
Margaret Archibald, Arnold Knopfmacher
doaj   +1 more source

Osculating Random Walks on Cylinders [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
We consider random paths on a square lattice which take a left or a right turn at every vertex. The possible turns are taken with equal probability, except at a vertex which has been visited before.
Saibal Mitra, Bernard Nienhuis
doaj   +1 more source

Intrinsic universality and the computational power of self-assembly

open access: yes, 2013
This short survey of recent work in tile self-assembly discusses the use of simulation to classify and separate the computational and expressive power of self-assembly models.
Woods, Damien
core   +2 more sources

Approximating Persistent Homology in Euclidean Space Through Collapses [PDF]

open access: yes, 2014
The \v{C}ech complex is one of the most widely used tools in applied algebraic topology. Unfortunately, due to the inclusive nature of the \v{C}ech filtration, the number of simplices grows exponentially in the number of input points.
Botnan, Magnus Bakke, Spreemann, Gard
core   +1 more source

Average properties of combinatorial problems and thermodynamics of spin models on graphs [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
The study of thermodynamic properties of classical spin models on infinite graphs naturally leads to consider the new combinatorial problems of random-walks and percolation on the average.
Alessandro Vezzani   +2 more
doaj   +1 more source

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