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Non-strongly isospectral spherical space forms
(2016)
In this paper we describe recent results on explicit construction of lens spaces that are not strongly isospectral, yet they are isospectral on p-forms for every p. Such examples cannot be obtained by the Sunada method. ...
Rooted branching bisimulation as a congruence for probabilistic transition systems
(2015)
We propose a probabilistic transition system specification format, referred to as probabilistic RBB safe, for which rooted branching bisimulation is a congruence. The congruence theorem is based on the approach of Fokkink ...
Zoom : a corpus of natural language descriptions of map locations
(2015)
This paper describes an experiment to elicit referring expressions from human subjects for research in natural language generation and related fields, and preliminary results of a computational model for the generation of ...
On the nature of defects in liquid-phase exfoliated graphene
(2014)
Liquid-phase exfoliation is one of the most promising routes for large-scale production of multilayer graphene dispersions. These dispersions, which may be used in coatings, composites, or paints, are believed to contain ...
Kerma and photons absorbed-dose from Ir-192 HDR seeds
(2014)
Precise calculations of absorbed dose (AD) are a difficult task involving physical phenomena such as emission, transport, and absorption of radiation. We used the Monte Carlo method to calculate Kerma as well as AD in water ...
Decay bounds for nonlocal evolution equations in Orlicz spaces
(2016)
We show decay bounds of the form ∫Rd φ(u (x, t)) dx ≤ Ct−μ for integrable and bounded solutions to the nonlocal evolution equation ut(x, t) = ∫Rd J(x, y)G(u(y, t) − u(x, t))(u(y, t) − u(x, t)) dy + f (u(x, t)). Here G is ...
Examples of extensions of hopf algebrasEjemplos de extensiones de álgebras de Hopf
(2015)
We give some examples of, and raise some questions on, extensions of semisimple Hopf algebras.
Lifting via cocycle deformation
(2014)
We develop a strategy to compute all liftings of a Nichols algebra over a finite dimensional cosemisimple Hopf algebra. We produce them as cocycle deformations of the bosonization of these two. In parallel, we study the ...
Nucleation and growth mechanisms in Cu-Co films
(2016)
Nucleation and growth mechanisms in Co, Cu, and CoxCu100-x single films, and in CoxCu100-x/Cu bilayers, electrodeposited on Cu70Zn30 brass substrates, are studied by the constant potential technique. The recorded current-time ...
Diurnal patterns in lightning activity over South America
(2014)
Satellite and ground network observations of lightning flash distribution data are used to examine the diurnal cycle of lightning activity over the tropical and subtropical regions of South America. The results show in ...