scholarly journals Strongly positive representations of metaplectic groups

2011 ◽  
Vol 334 (1) ◽  
pp. 255-274 ◽  
Author(s):  
Ivan Matić
2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Yahya Almumin ◽  
Mu-Chun Chen ◽  
Víctor Knapp-Pérez ◽  
Saúl Ramos-Sánchez ◽  
Michael Ratz ◽  
...  

Abstract We revisit the flavor symmetries arising from compactifications on tori with magnetic background fluxes. Using Euler’s Theorem, we derive closed form analytic expressions for the Yukawa couplings that are valid for arbitrary flux parameters. We discuss the modular transformations for even and odd units of magnetic flux, M, and show that they give rise to finite metaplectic groups the order of which is determined by the least common multiple of the number of zero-mode flavors involved. Unlike in models in which modular flavor symmetries are postulated, in this approach they derive from an underlying torus. This allows us to retain control over parameters, such as those governing the kinetic terms, that are free in the bottom-up approach, thus leading to an increased predictivity. In addition, the geometric picture allows us to understand the relative suppression of Yukawa couplings from their localization properties in the compact space. We also comment on the role supersymmetry plays in these constructions, and outline a path towards non-supersymmetric models with modular flavor symmetries.


Author(s):  
Francesca Ghillani

AbstractRecent studies have taken into account the fact that the lives of older people have changed drastically in the past fifty years. Older people today engage more with society and are also expected to maintain an active role in their communities. In order to maintain a positive social status, todays older adults need both to challenge negative stereotypes and also to achieve the “unachievable” positive representations in the media. Society plays a complex game of bodily images: the artificial image of the human body in the media, the image that individuals try to project, and the image that society reflects back to the individual. When the three don’t coincide, the collision creates a distancing effect. To truly understand the lived experiences of older adults in contemporary society we must explore the changing perceptions of the body. This review will illustrate the arguments both classical and contemporary through an exploration of the ageing female body, which remains the focus of most of the literature.


1994 ◽  
Vol 72 (7-8) ◽  
pp. 505-510 ◽  
Author(s):  
D. J. Rowe

We review the properties of the holomorphic representations with lowest weights for the noncompact real symplectic and metaplectic groups. The unitarizable sub representations of these representations are identified with the harmonic series. We define unitary characters for the holomorphic representations and show how they can be used to identify the unitarizable sub quotient representations. Explicit results are given for Sp(1, R), Sp(2, R), and Sp(3, R).


2019 ◽  
pp. 14-61
Author(s):  
Noelle Gallagher

This chapter asks what imaginative representations of venereal disease say about Restoration and eighteenth-century attitudes toward gender and sexuality. It does so by considering the portrayal of venereal infections in men. It is no coincidence that many of the positive representations of the disease focus on male rather than female subjects. It has been suggested that the sexual double standard (whereby men were applauded for sexual promiscuity and women punished for it) played some role in shaping imaginative representations of the infection. However, so too did a culture that linked infection to manliness and male power. While historians working with medical texts from the early modern period have tended to conclude that the disease was seen as originating with, and spread by, women, many eighteenth-century literary and artistic works imagine venereal disease as male—as a condition predominantly experienced by men, caused by male sexual indiscretion, and passed on by philandering husbands to their faithful wives and innocent children.


XLinguae ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 139-154
Author(s):  
Elie Alrabadi

This research is interested in the representations that Qatari students, enrolled in the French minor at Qatar University, have toward the French language/culture. The objective of this research is to analyze these representations as well as their influences on the motivations and attitudes of these students towards learning French. To achieve this goal, we conducted a survey among these students. The results this survey show that French generally receives positive representations, which should develop attitudes favorable to its learning.


2020 ◽  
Vol 3 (1) ◽  
pp. 1-14
Author(s):  
Teresa Dirsuweit

There is a food security crisis in South Africa and black working-class women are the shock absorbers of this crisis. It follows that where food studies are included in the South African curriculum, the relationship between women and food security should be understood and critiqued by learners. Improvements in gender equality have also been identified as one of the primary drivers of improvements in food security. In this paper, the South African curriculum is analysed in terms of food studies, gender studies and the promotion of gender equality. Using the lens of feminist pedagogy, a set of qualitative indicators were developed to assess the content and praxis of the curriculum. While there is content which deals with gender and with food, these are presented separately. In the Geography and Agriculture curricula, there is a marked lack of focus on gender concerns. This article concludes that the curriculum could be reoriented to include an awareness and critique of the nexus of women and food and that more positive representations of women as active and powerful agents are needed in the South African Curriculum Assessment Policy Statement (CAPS).


2012 ◽  
Vol 5 (2) ◽  
pp. 98-107
Author(s):  
Hernán Yair Rodríguez Betancourt ◽  
Laura Guzmán Verbel ◽  
Nataly Del Pilar Yela Solano

The following investigation was realized with the objective to characterize the personal factors that influence in the development of resilience in 200 children aged between 7 and 12 years in families linked to the program Red UNIDOS in the city of Ibague, for this was applied the inventory of resiliency factors proposed by Salgado (2005), which evaluate the level of self-esteem, empathy, autonomy, humor and creativity. The results show that the sample is in the middle of the factors evaluated (61%) and that 69% did not face adequately the adversity. We conclude that adult significant training children require psycho-afective formation to enable them to generate environments based on the self awareness of their children. Is proposed to design a training program for parents to incorporate into their speeches and actions positive representations on their children, so that achieving self-assertive and enable them to develop the ability to overcome adversity.


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