2,632 research outputs found
Local points on Shimura coverings of Shimura curves at bad reduction primes
Let XD be the Shimura curve associated with an indefinite rational quaternion algebra of reduced discriminant D>1. For each prime l|D, there is a natural cyclic Galois covering of Shimura curves XD,l → XD constructed by adding certain level structure at l. The main goal of this note is to study the existence of local points at primes p≠l of bad reduction on the intermediate curves of these coverings and their Atkin–Lehner quotients.Peer ReviewedPostprint (author's final draft
Rehabilitation Versus Incarceration of Juvenile Offenders: Public Preferences in Four Models for Change States
Analyzes how American juvenile justice system policy has become increasingly punitive over the last few decades and examines citizens' willingness to pay for incarceration versus rehabilitation of youth offenders
CM cycles on Kuga–Sato varieties over Shimura curves and Selmer groups
Given a modular form f of even weight larger than two and an imaginary quadratic field K
satisfying a relaxed Heegner hypothesis, we construct a collection of CM cycles on a Kuga–Sato
variety over a suitable Shimura curve which gives rise to a system of Galois cohomology classes
attached to f enjoying the compatibility properties of an Euler system. Then we use Kolyvagin’s
method [21], as adapted by Nekova´¿r [28] to higher weight modular forms, to bound the size of the relevant Selmer group associated to f and K and prove the finiteness of the (primary part) of the Shafarevich–Tate group, provided that a suitable cohomology class does not vanish.Peer ReviewedPostprint (author's final draft
Pullbacks of Saito-Kurokawa lifts and a central value formula for degree 6 L-series
We prove an explicit central value formula for a family of complex L-series of degree 6 for GL2 × GL3 which arise as factors of certain Garret–Rankin triple product L-series associated with modular forms. Our result generalizes a previous formula of Ichino involving Saito–Kurokawa lifts, and as an application we prove Deligne’s conjecture stating the algebraicity of the central values of the considered L-series up to the relevant periods.Peer ReviewedPostprint (author's final draft
Alimentación, nutrición y salud en la Guipúzcoa del antiguo régimen. Unas consideraciones
En esta comunicación se ofrece una descripción de las dietas ordinarias a finales del siglo XVIII de distintos colectivos sociales guipuzcoanos: campesinos arrendatarios, clero regular y secular e hijos de las élites del País. De su estudio se puede apreciar cómo la alimentación es buen observatorio para escrutar las diferencias sociales, tanto por las desigualdades detectadas a nivel del conjunto de calorías y de macronutrientes como por los productos presentes en cada mesa. Aún así parece que las dietas más pobres de las capas populares eran desde un punto de vista nutricional suficientes para evitar problemas de malnutrición graves.Komunikazio honetan, Gipuzkoako XVIII. mendearen amaierako hainbat gizarte talderen dieta arrunten deskripzioa eskaintzen da: nekazari maizterrena, klero erregeladun eta sekularrarena eta Herrialdeko eliteena. Horiek azterturik, ikus daiteke nola gizarte diferentziak arakatzerakoan behategi egokia den elikadura, hala kaloria eta makroelikagaien kopuruari dagokionez antzemaniko desberdintasunengatik, nola mahai bakoitzean agertzen ziren produktuengatik. Hala eta guztiz ere, elikapenaren ikuspuntutik, herri mailen dieta pobreenak ere, dirudienez, nahikoak ziren malnutrizio arazo larriak ekiditeko.Dans cette communication, on offre une description des régimes ordinaires de la fin du XVIIIe siècle de différentes collectivités sociales de Guipuzcoa: fermiers, clergé régulier et séculier et enfants de l'élite du Pays. Par cette étude, on peut se rendre compte comment l'alimentation est un bon observatoire pour examiner les différences sociales, aussi bien par les inégalités détectées au niveau de l'ensemble des calories et des macro substances nutritives que par les produits présents sur chaque table. Même de cette façon il semble que les régimes des couches des populations les plus pauvres étaient, d'un point de vue nutritionnel, suffisants pour éviter des problèmes de malnutrition graves.In this dissertation, the author offers a description of the ordinary diets around the end of the 18th century in various social groups in Gipuzkoa: peasant lessees, regular and secular clergy and the children of the élites of the country. From his study it can be appreciated that nourishment is good observatory from which to study social differences, both from the point of view of the inequalities detected at the calorie and macronutrient levels as well as of the products present at each table. Even so it seems that the poorest diets of the popular classes were sufficient to avoid serious malnutrition problems from a nutritional point of view
Places : nueva herramienta para el cálculo de lugares y redes de lugares
Obra ressenyada: N. PIZARRO; J. PÉREZ, Places v3.0 [Programa informàtic]. Universidad Complutense de Madrid.En 2013 ha sido liberado el programa Places v3.0 como herramienta para el cálculo de lugares y redes de lugares, cuya teoría se encuadra en los sistemas de equivalencia estructural, caracterizándose por combinar unos fuertes principios sociológicos y un algoritmo matemático sencillo, lo que la hace apta para afrontar una variedad de problemáticas de investigación sin estar limitada por el tamaño de la población a estudio. En esta reseña, la descripción del programa y su funcionamiento se acompañan con apuntes de la teoría de lugares.In 2013, the software Places v3.0 has been released. This software is a tool for calculating Places and Networks of Places, whose theory is framed in structural equivalence systems, characterized by combining strong sociological principles and simple mathematical algorithm. This makes it suitable tool for addressing a variety of research issues without being limited by the size of the study population. In this review, the description of the program and its functioning has been accompanied with notes on the theory of places
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