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13 papers · 1 filter
w-Divisorial Domains
Said El Baghdadi, Stefania Gabelli
We study the class of domains in which each w-ideal is divisorial, extending several properties of divisorial and totally divisorial domains to a much wider class of domains. In pa…
Relaxation time of -reversal chains and other chromosome shuffles
N. Cancrini, P. Caputo, F. Martinelli
We prove tight bounds on the relaxation time of the so-called -reversal chain, which was introduced by R. Durrett as a stochastic model for the evolution of chromosome chains. T…
Circuit elements at optical frequencies: nano-inductors, nano-capacitors and nano-resistors
Nader Engheta, Alessandro Salandrino, Andrea Alu
We present some ideas for synthesizing nanocircuit elements in the optical domain using plasmonic and non-plasmonic nanoparticles. Three basic circuit elements, i.e., nano-inductor…
Computer simulation of the phase diagram for a fluid confined in a fractal and disordered porous material
V. De Grandis, P. Gallo, M. Rovere
We present a grand canonical Monte Carlo simulation study of the phase diagram of a Lennard-Jones fluid adsorbed in a fractal and highly porous aerogel. The gel environment is gene…
Polarizabilities and Effective Parameters for Collections of Spherical Nano-Particles Formed by Pairs of Concentric Double-Negative (DNG), Single-Negative (SNG) and/or Double-Positive (DPS) Metamaterial Layers
Andrea Alu, Nader Engheta
Unusual scattering effects from tiny spherical particles may be obtained when concentric shells are designed by pairing together 'complementary' double-negative (DNG), single-negat…
Semistar invertibility on integral domains
Marco Fontana, Giampaolo Picozza
After the introduction in 1994, by Okabe and Matsuda, of the notion of semistar operation, many authors have investigated different aspects of this general and powerful concept. A…