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Division-Algebras/Poincare-Conjecture Correspondence  [PDF]
Juan Antonio Nieto
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.48A005
Abstract:

We briefly describe the importance of division algebras and Poincaré conjecture in both mathematical and physical scenarios. Mathematically, we argue that using the torsion concept one can combine the formalisms of division algebras and Poincaré conjecture. Physically, we show that both formalisms may be the underlying mathematical tools in special relativity and cosmology. Moreover, we explore the possibility that by using the concept of n-qubit system, such conjecture may allow generalization the Hopf maps.

Real quartic surfaces containing skew lines
Isidro Nieto
International Journal of Mathematics and Mathematical Sciences , 2004, DOI: 10.1155/s0161171204308112
Abstract: It is well known that there is an open three-dimensional subvariety Ms of the Grassmannian of lines in ℙ3 which parametrizes smooth irreducible complex surfaces of degree 4 which are Heisenberg invariant, and each quartic contains 32 lines but only 16 skew lines, being determined by its configuration of lines, are called a double 16. We consider here the problem of visualizing in a computer the real Heisenberg invariant quartic surface and the real double 16. We construct a family of points l∈Ms parametrized by a two-dimensional semialgebraic variety such that under a change of coordinates of l into its Plüecker, coordinates transform into the real coordinates for a line L in ℙ3, which is then used to construct a program in Maple 7. The program allows us to draw the quartic surface and the set of transversal lines to L. Additionally, we include a table of a group of examples. For each test example we specify a parameter, the viewing angle of the image, compilation time, and other visual properties of the real surface and its real double 16. We include at the end of the paper an example showing the surface containing the double 16.
A influência das economias emergentes em assuntos internacionais
Nieto, Nubia;
Estudos Avan?ados , 2012, DOI: 10.1590/S0103-40142012000200011
Abstract: this article explores the impact of emerging economies in international affairs. the arrival of the bric's countries (brazil, russia, india and china) has changed the map of the global order and the strategies to project hegemonic power. could the bric eclipse the economic power of the richest countries of the world? what are the main strategies of bric to project its power worldwide? these and other questions are analysed in this text taking into account the new geopolitical scenario of the twenty-first century.
La socialización de las élites políticas mexicanas a través de la corrupción
Nieto,Nubia;
Análisis Político , 2011,
Abstract: this article focuses on the study of corruption as one of the factors influencing and facilitating the socialization of mexican political elites in the context of political relations based on close friendship, family relations, caciquism or bossism, and patronage. it also analyzes the phenomenon of corruption as a factor in the process of political recruitment, mobility of elites and provides a scheme in the exercise of political power in mexico.
Las mujeres en El último encuentro
Nieto,Judith;
Co-herencia , 2009,
Abstract: friendship is the main issue in this novel, one of the hungarian author sándor márai's most remarkable ones; beyond its sheets, a kind of fine-brush painting stands out, in which the features of a true friendship are well-drawn, as well as the strokes that can make that feeling vanish. looking into the female world that also assists and plays the leading role in the final meeting, is the purpose of this essay. knowing why the character woman is created by the author to be there in such a necessarily enigmatic way, as in fact the feminine is inside and outside fiction, is an interest joined to the other previously exposed.
Relatos autobiográficos de víctimas del conflicto armado: una propuesta teórico-metodológica
Nieto,Patricia;
Revista de Estudios Sociales , 2010,
Abstract: working from the description of the public writing project named "de su pu?o y letra. polifonía para la memoria. las voces de las víctimas del conflicto armado en medellín" (from their own hand. polyphony for memory. the voices of the victims of the armed conflict in medellin), this article advances towards the construction of a theoretical and methodological framework to value it as a strategy in the construction of memories. as such, the line it follows becomes a connection which links two basic questions: what happened and how do we write the story of what happened. the first acts as a motivation to evoke, remember, enunciate, and publish stories of the ominous events of the past (communication and pedagogic strategy); the second tends to describe the narrative mechanisms of each author (autobiographical method and genetic critique).
Divorcio en Buda, una noción de justicia en la ficción
Nieto,Judith;
Revista de Derecho , 2010,
Abstract: this paper intends to undertake a review on the idea of justice developed by sandor marai in his novel divorce in buda. this quest was realized strictily by means of an intratextual reading of the work. in that manner, this pages are ruled by the question ?which notion of justice is present in the content of a fiction novel like divorce in buda? such answer was obtained after proper philosophical-literary, discursive and legal contextual-izations, indispensable for this dissertation. among topics worked here, it is found: exordium, on durability of art works; philosophy and literature, a possible meeting; on comprehension, an opportune clarification; on the novel's content; discurses on law and literary discurses; notion of justice in a novel; conclusion.
Chinese immigration in Spain. Definitions and actions regarding social integration
Gladys Nieto
Revista CIDOB d'Afers Internacionals , 2003,
Abstract: Currently, the social integration of immigrants constitutes an imperative of the Spanish state as well as a demand of its civil society and of immigrant organisations. While local institutions declare that the Chinese population does not show a particular interest in integrating into this society, in the last few years the Chinese voluntary associations have developed a series of strategies that have brought them closer to the public administrations, producing, in turn, particular discursive elaborations on the social integration of their group. In this article, the author analyzes the way in which the institutions and their agents –coming both from the Chinese group and the receiving society— conceive of and/or apply in their practices certain actions linked to “social integration”. For this, she limits her observation to the Chinese voluntary associations, and exemplifies the conflicts and paradoxes of the processes of social integration when immigrant organisations findthemselves exposed to unequal requirements on the part of the country of origin and the destination country.
Un comentario sobre el concepto de regresión dinámica
Nieto Fabio
Revista Colombiana de Estadística , 1992,
Abstract: La frase "Regresión dinámica" se utiliza en dos contextos diferentes. En uno, se toma como sinónimo de Modelo de Función de Transferencia y en el otro, como sinónimo de un modelo de estados. En este articulo se explica la diferencia entre los dos usos del concepto destacando la motivación que precede a cada uno.
Identificación de un modelo ARMA a partir de un modelo de estados
Nieto Fabio
Revista Colombiana de Estadística , 1991,
Abstract: Se ilustra con un ejemplo teórico el procedimiento para obtener un modelo ARMA, a partir del modelo de estados que se identifica con el espacio predictor del proceso que genera una serie temporal.
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