4,395 research outputs found
Homotopy groups of generic leaves of logarithmic foliations
We study the homotopy groups of generic leaves of logarithmic foliations on
complex projective manifolds. We exhibit a relation between the homotopy groups
of a generic leaf and of the complement of the polar divisor of the logarithmic
foliation.Comment: Keywords: Foliations, Logarithmic, Topology of Leave
Structural evolution in germanium and selenium nuclei within the mapped interacting boson model based on the Gogny energy density functional
The shape transitions and shape coexistence in the Ge and Se isotopes are
studied within the interacting boson model (IBM) with the microscopic input
from the self-consistent mean-field calculation based on the Gogny-D1M energy
density functional. The mean-field energy surface as a function of the
quadrupole shape variables and , obtained from the constrained
Hartree-Fock-Bogoliubov method, is mapped onto the expectation value of the IBM
Hamiltonian with configuration mixing in the boson condensate state. The
resultant Hamiltonian is used to compute excitation energies and
electromagnetic properties of the selected nuclei Ge and
Se. Our calculation suggests that many nuclei exhibit
softness. Coexistence between prolate and oblate, as well as between spherical
and -soft, shapes is also observed. The method provides a reasonable
description of the observed systematics of the excitation energy of the
low-lying energy levels and transition strengths for nuclei below the neutron
shell closure , and provides predictions on the spectroscopy of
neutron-rich Ge and Se isotopes with , where data are scarce
or not available.Comment: 16 pages, 20 figure
Spectroscopy of quadrupole and octupole states in rare-earth nuclei from a Gogny force
Collective quadrupole and octupole states are described in a series of Sm and
Gd isotopes within the framework of the interacting boson model (IBM), whose
Hamiltonian parameters are deduced from mean field calculations with the Gogny
energy density functional. The link between both frameworks is the
() potential energy surface computed within the
Hartree-Fock-Bogoliubov framework in the case of the Gogny force. The
diagonalization of the IBM Hamiltonian provides excitation energies and
transition strengths of an assorted set of states including both positive and
negative parity states. The resultant spectroscopic properties are compared
with the available experimental data and also with the results of the
configuration mixing calculations with the Gogny force within the generator
coordinate method (GCM). The structure of excited states and its
connection with double octupole phonons is also addressed. The model is shown
to describe the empirical trend of the low-energy quadrupole and octupole
collective structure fairly well, and turns out to be consistent with GCM
results obtained with the Gogny force.Comment: 17 pages, 12 figures, 4 table
Memoria de la Comisión Provincial de Monumentos Históricos y Artísticos de Ávila leída en la solemne inauguración del Museo Provincial el día 21 de octubre de 1911
Ejemplar manuscrito del autorCopia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201
Consecuencias legales derivadas de un accidente laboral
Traballo fin de grao (UDC.DER). Dereito. Curso 2014/201
Project Incandescence: Design and development of a geolocated experience
Treball Final de Grau en Disseny i Desenvolupament de Videojocs. Codi: VJ1241. Curs acadèmic: 2015-2016As years go by, more and more everyday objects are getting interconnected and aware of their
environment. This technological fabric being woven across our lives opens up opportunities
never seen before. The communication and personal nature of smartphones makes them the
ideal flagship in charge of clearing the path and heading towards the Internet of Things era.
Their embedded sensors together with their broad adoption makes them the perfect devices
for experimenting on novel ways of creating fresh interactive experiences.
In this paper, Project Incandescence is proposed; an application which aims to experiment
with storytelling by the exploitation of up-to-date technologies present in smartphones. The
intended target audience are students of the last years of high school or college students. In
other words, people from 16 to 24 years old which are willing to try new things. Project
Incandescence is a global video game project but efforts will be mainly focused on programming
an app which integrates and makes use of the information provided by recent
technologies. Specifically, geolocation, augmented reality and haptic feedback will capture
our attention. Another key part of the project is game design. However, it will be tackled
with lesser dedication. The artistic aspect of the experience will not be neglected either, but
it will be the least important aspect of the three main ones.
The development will target the Android platform which is the most extended one among
smartphones. This software stack has also postulated as key one in the future since it does
not target a specific device, and currently supports from watches to cars
- …