Results 31 to 40 of about 3,304 (74)

On level line fluctuations of SOS surfaces above a wall

open access: yesForum of Mathematics, Sigma
We study the low-temperature $(2+1)$ D solid-on-solid model on with zero boundary conditions and nonnegative heights (a floor at height $0$ ). Caputo et al. (2016) established that this random surface typically admits either $\mathfrak h
Patrizio Caddeo   +2 more
doaj   +1 more source

On the Eigenspaces of Lamplighter Random Walks and Percolation Clusters on Graphs

open access: yes, 2008
We show that the Plancherel measure of the lamplighter random walk on a graph coincides with the expected spectral measure of the absorbing random walk on the Bernoulli percolation clusters.
Lehner, Franz
core   +1 more source

No directed fractal percolation in zero area

open access: yes, 1997
We show that fractal (or "Mandelbrot") percolation in two dimensions produces a set containing no directed paths, when the set produced has zero area. This improves a similar result by the first author in the case of constant retention probabilities to ...
B. Duplantier   +8 more
core   +3 more sources

Critical case stochastic phylogenetic tree model via the Laplace transform

open access: yes, 2013
Birth-and-death models are now a common mathematical tool to describe branching patterns observed in real-world phylogenetic trees. Liggett and Schinazi (2009) is one such example.
Bartoszek, Krzysztof, Krzeminski, Michal
core   +2 more sources

Hierarchical pinning model: low disorder relevance in the $b=s$ case [PDF]

open access: yes, 2014
We consider a hierarchical pinning model introduced by B.Derrida, V.Hakim and J.Vannimenus which undergoes a localization/delocalization phase transition. This model depends on two parameters $b$ and $s$.
Sohier, Julien
core   +3 more sources

Price systems for markets with transaction costs and control problems for some finance problems

open access: yes, 2006
In a market with transaction costs, the price of a derivative can be expressed in terms of (preconsistent) price systems (after Kusuoka (1995)). In this paper, we consider a market with binomial model for stock price and discuss how to generate the price
Chiang, Tzuu-Shuh   +2 more
core   +1 more source

Free fermionic probability theory and k-theoretic schubert calculus

open access: yesForum of Mathematics, Sigma
For each of the four particle processes given by Dieker and Warren, we show the n-step transition kernels are given by the (dual) (weak) refined symmetric Grothendieck functions up to a simple overall factor. We do so by encoding the particle dynamics as
Shinsuke Iwao   +2 more
doaj   +1 more source

Four universal growth regimes in degree-dependent first passage percolation on spatial random graphs

open access: yesForum of Mathematics, Sigma
One-dependent first passage percolation is a spreading process on a graph where the transmission time through each edge depends on the direct surroundings of the edge. In particular, the classical i.i.d. transmission time $L_{xy}$ is multiplied by
Júlia Komjáthy   +3 more
doaj   +1 more source

The Incipient Giant Component in Bond Percolation on General Finite Weighted Graphs

open access: yes, 2016
On a large finite connected graph let edges $e$ become "open" at independent random Exponential times of arbitrary rates $w_e$. Under minimal assumptions, the time at which a giant component starts to emerge is weakly concentrated around its ...
Aldous, David J.
core   +2 more sources

Spatial Multiresolution Cluster Detection Method [PDF]

open access: yes, 2012
A novel multi-resolution cluster detection (MCD) method is proposed to identify irregularly shaped clusters in space. Multi-scale test statistic on a single cell is derived based on likelihood ratio statistic for Bernoulli sequence, Poisson sequence and ...
Zhang, Lingsong   +2 more
core   +2 more sources

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