Conservation laws arising in the study of forward-forward Mean-Field Games

We consider forward-forward Mean Field Game (MFG) models that arise in numerical approximations of stationary MFGs. First, we establish a link between these models and a class of hyperbolic conservation laws as well as certain nonlinear wave equations. Second, we investigate existence and long-time behavior of solutions for such models

Christianity as a Culture of Mobility: A Case Study of Asian Transient Migrants in Singapore

More than ever before, the global and transnational movements of young people for work and study have become part of everyday life. Yet there is very little research on this phenomenon in relation to how actors in transience create strategies to cope with being away from home nation (place of birth and/or citizenship) and from family. As part of the findings of a larger international study on the identities, social networks and media/communication use of transient migrants, researchers found that Christianity featured prominently during life in transience for Asian respondents. This paper thus puts forward the notion that Christianity may well function as a culture of mobility by looking at its significance to Asian “foreign talent” transient migrants in Singapore. Through face-toface interviews with fifty-seven Asian working professionals and international students, this paper found thirty that not only identified themselves as Christian, but whose social networks were also made up of Asian foreign talent transient migrant Christians. This paper thus suggests that Asian foreign talent transient migrants turn to Christianity as a way of coping with everyday life in transience. The Christian groups they join allow them to create a sense of community while being away from the home nation. This sense of community however is with other transient migrants, rather than with locals

On spin-1 massive particles coupled to a Chern-Simons field

We study spin one particles interacting through a Chern-Simons field. In the Born approximation, we calculate the two body scattering amplitude considering three possible ways to introduce the interaction: (a) a Proca like model minimally coupled to a Chern-Simons field, (b) the model obtained from (a) by replacing the Proca's mass by a Chern-Simons term and (c) a complex Maxwell-Chern-Simons model minimally coupled to a Chern-Simons field. In the low energy regime the results show similarities with the Aharonov-Bohm scattering for spin 1/2 particles. We discuss the one loop renormalization program for the Proca's model. In spite of the bad ultraviolet behavior of the matter field propagator, we show that, up to one loop the model is power counting renormalizable thanks to the Ward identities satisfied by the interaction vertices.Comment: 14 pages, 5 figures, revte

Student ambassadors for digital literacy (SADL): evaluation & impact report 2015/16

This report evaluates the programme Student Ambassadors for Digital Literacy (SADL) at LSE led by Learning Technology and Innovation (LTI) and LSE Library in 2015/16. SADL was set up to better understand the digital and information literacies that LSE undergraduate students obtain and the ways in which the School can best support them. The programme was launched as a pilot in September 2013, following a review of undergraduate support in 2011 which found that digital literacies equip students with important attitudes, skills and behaviours which enhance their studies, and that they are relevant to the workplace and to their daily lives (Bell et al., 2012). Through running SADL, LTI and the Library can understand more about students’ digital skills, how to embed them into the curriculum and offer more relevant support and teaching for all students. The present report evaluates how the programme has impacted on participating students, academic support staff who have taught on the programme, and the wider influence the programme has had across the LSE. It also reflects on how digital literacies at LSE might be best supported. Our recommendation is that we should build on two of SADL’s core values, a) Developing a community of peer mentors interested in, and equipped with digital literacies and b) developing an even greater range of digital literacies amongst LSE undergraduates

Effective models of quantum gravity induced by Planck scale modifications in the covariant quantum algebra

In this paper we introduce a modified covariant quantum algebra based in the so-called Quesne-Tkachuk algebra. By means of a deformation procedure we arrive at a class of higher derivative models of gravity. The study of the particle spectra of these models reveals an equivalence with the physical content of the well-known renormalizable and super-renormalizable higher derivative gravities. The particle spectrum exhibits the presence of spurious complex ghosts and, in light of this problem, we suggest an interesting interpretation in the context of minimal length theories. Also, a discussion regarding the non-relativistic potential energy is proposed.Comment: Small corrections were made; improved figures; results unchanged; published versio