713 research outputs found

    Global symplectic coordinates on gradient Kaehler-Ricci solitons

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    A classical result of D. McDuff asserts that a simply-connected complete Kaehler manifold (M,g,ω)(M,g,\omega) with non positive sectional curvature admits global symplectic coordinates through a symplectomorphism Ψ:MR2n\Psi: M\rightarrow R^{2n} (where nn is the complex dimension of MM), satisfying the following property (proved by E. Ciriza): the image Ψ(T)\Psi (T) of any complex totally geodesic submanifold TMT\subset M through the point pp such that Ψ(p)=0\Psi(p)=0, is a complex linear subspace of CnR2nC^n \simeq R^{2n}. The aim of this paper is to exhibit, for all positive integers nn, examples of nn-dimensional complete Kaehler manifolds with non-negative sectional curvature globally symplectomorphic to R2nR^{2n} through a symplectomorphism satisfying Ciriza's property.Comment: 8 page

    Two Ways of New Towns Development: A Tale of Two Cities

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    New Towns, or Planned Communities, are cities in which all aspects of development are determined before construction begins. Eichler and Kaplan (1967) and Griffin (1974) have defined “new community” as a large development, generally over 1000 hectares (2500 acres) that has a comprehensive and mixed-use design conforming to a single master plan and a socially diverse population. The most self-contained are also called “new towns”. The related term, refers to a community that seeks to produce a range of valuable social, environmental, and economic benefits than more conventional, less comprehensively planned developments are likely to achieve. Such communities have been proposed as creative alternatives to conventional developments for many years and in many countries. New Towns are generally thought of as being of two types: ‘independent’, if they contain employment for their own residents and ‘satellite1’ if a substantial number of residents commute to another metropolis. Development of New Towns is expensive, particularly the provision of their infrastructure. Despite a high level of subsidy from central government and often regional authorities as well, the new towns remain heavily in debt, a problem exacerbated by the currently much reduced rates of demographic and economic growth. The slow pace at which land is being acquired and premises are being occupied increases the burden of repaying the loans contracted to finance development. Additional financial difficulties have arisen over the running of the new towns’ services, due to the present relatively small local tax income, which is available to support them..

    Women from the south in philosophy: A critical reading of the philosophical canon

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    Procuraré en este escrito formular algunas reflexiones acerca de la incomodidad que acecha a quienes nos identificamos como mujeres en el campo de la filosofía académica, una incomodidad que se acrecienta si hemos nacido en el sur del planeta y hablamos español como lengua nativa. La primera dificultad estriba en esto de auto-designarse mujeres. La segunda en el peso de las operaciones de descorporización vinculadas a la inculcación del habitus académico y profesional y en la incidencia del canon en la formación filosófica. Se formulan algunas críticas al canon andro y eurocéntrico de la filosofía desde una perspectiva feminista atenta a la ubicación, la clase, la raza a la vez que se revisan las formas habituales de incorporación de mujeres. El trabajo ha sido elaborado a partir de fuentes filosóficas y bibliografía secundaria.This paper aims to posit some reflections about the discomfort thathaunts those of us who identify as women within the philosophical academic field. This discomfort is increased when one is born in the South of the world and speaks Spanish as a mother tongue. The first difficulty lies in identifying ourselves as women. The second one is related to the weight of disembodiment within the academic habitus and the incidence of the canon in philosophical training. The article argues against the Androcentric and Eurocentric features of the philosophical canon from a feminist point of view, attentive to social location, class and race. It also reflects the way women are customarily incorporated into the philosophical field. The paper is based on philosophical sources and secondary source analysis.Fil: Ciriza, Alejandra Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Ciencias Humanas, Sociales y Ambientales; Argentina. Universidad Nacional de Cuyo; Argentin

    Walter Benjamin : to the search of the lost time

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    El objeto de este trabajo es discutir algunas interpretaciones que, sobre la producción de Walter Benjamin, circulan en el espacio académico. Desde mi perspectiva las últimas lecturas han asignado a la obra benjaminiana una significación próxima a la de la teoría de la deconstrucción. Desde mi punto de vista estas interpretaciones se hallan bastante lejos de las preocupaciones que alientan en la producción del autor. La inocultable tensión entre una forma de escritura que puede ser leída sin dudas como poética y la crítica benjaminiana de la estetización fascista de la política, entre un lenguaje que asemeja en muchos casos el de los místicos judíos en el tiempo de la espera tensa del advenimiento del Mesías y el acontecimiento profano de cuya irrupción luminosa Benjamin aguarda la emancipación: la revolución social ha incitado intentos recurrentes de hacer jugar a Benjamin en el terreno de la moda. El modesto propósito de este escrito es el de esbozar apenas una aproximación a Benjamin, una suerte de lectura benjaminiana de Benjamin en una época que a la vez que rinde tributo a su producción (se han multiplicado las ediciones, traducciones, publicaciones, seminarios, cursos) tiende a obliterar en él la dimensión política.This paper discuss some interpretations about Walter Benjamin wich circulate in the academic field. Now a day is common to consider Benjamin like un deconstructionist "avant la lettre", a writer à la pâge, and even like a poet. From my point of view these interpretation are far from the author concerns. There are, is truth, tension among writing form and political position I try to argue in this paper that Benjamin is an inheritor of Jewish mystic and a Marxist political thinker. His preoccupation about revolution and contemporary historical facts guide his thinking about time. Benjamin was concerned by the effects of technical revolution in arts and human life. He was, like others thinkers of Frankfurt school, a man of his time. The modest purpose of this writing is to sketching an approach to Benjamin, a sort of benjaminian reading of Benjamin in an age that, at the same time, it renders tribute to its production (they have multiplied the editions, translations, publications, seminars, courses) and it spreads to obliterate in him the political dimensionFil: Ciriza, Alejandra. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociale

    Desafíos y perspectivas. Qué feminismo hoy

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    Fil: Ciriza, Alejandra. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociale

    Genealogías feministas y ciudadanía : notas sobre la cuestión de las memorias de los feminismos en América Latina

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    Ponencia presentada en: VIII Jornadas Nacionales de Historia de las Mujeres, III Congreso Iberoamericano de Estudios de Género, Universidad Nacional de Córdoba, Villa Giardino (Córdoba, Argentina), 25 al 28 de octubre de 2006.Fil: Ciriza, Alejandra. Universidad Nacional de Cuyo. Facultad de Ciencias Políticas y Sociale
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