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18 papers · 1 filter
Critical Exponents for Diluted Resistor Networks
O. Stenull, H. K. Janssen, K. Oerding
An approach by Stephen is used to investigate the critical properties of randomly diluted resistor networks near the percolation threshold by means of renormalized field theory. We…
Multifractality of Brownian motion near absorbing polymers
Christian von Ferber, Yurij Holovatch
We characterize the multifractal behavior of Brownian motion in the vicinity of an absorbing star polymer. We map the problem to an O(M)-symmetric phi^4-field theory relating highe…
Equation of state for directed percolation
H. K. Janssen, Ue. Kutbay, K. Oerding
Using field-theoretic renormalization group methods we calculate the equation of state for non-equilibrium systems belonging to the universality class of directed percolation (Grib…
Processing Unknown Words in HPSG
Petra Barg, Markus Walther
The lexical acquisition system presented in this paper incrementally updates linguistic properties of unknown words inferred from their surrounding context by parsing sentences wit…
A note on doubles of groups
Nadia Benakli, Oliver T. Dasbach, Yair Glasner +1
Recently, Rips produced an example of a double of two free groups which has unsolvable generalized word problem. In this paper, we show that Rips's example fits into a large class…
Multifractal dimension spectra in polymer physics
Christian von Ferber, Yurij Holovatch
We study the multifractal properties of diffusion in the presence of an absorbing polymer and report the numerical values of the multifractal dimension spectra for the case of an a…