Search results for "fundamental"
showing 10 items of 535 documents
On the proper homotopy invariance of the Tucker property
2006
A non-compact polyhedron P is Tucker if, for any compact subset K ⊂ P, the fundamental group π1(P − K) is finitely generated. The main result of this note is that a manifold which is proper homotopy equivalent to a Tucker polyhedron is Tucker. We use Poenaru’s theory of the equivalence relations forced by the singularities of a non-degenerate simplicial map.
Albanese Maps and Fundamental Groups of Varieties With Many Rational Points Over Function Fields
2020
We investigate properties of the Albanese map and the fundamental group of a complex projective variety with many rational points over some function field, and prove that every linear quotient of the fundamental group of such a variety is virtually abelian, as well as that its Albanese map is surjective, has connected fibres, and has no multiple fibres in codimension one.
Duality, projectivity, and unification in Łukasiewicz logic and MV-algebras
2013
AbstractWe prove that the unification type of Łukasiewicz (infinite-valued propositional) logic and of its equivalent algebraic semantics, the variety of MV-algebras, is nullary. The proof rests upon Ghilardiʼs algebraic characterisation of unification types in terms of projective objects, recent progress by Cabrer and Mundici in the investigation of projective MV-algebras, the categorical duality between finitely presented MV-algebras and rational polyhedra, and, finally, a homotopy-theoretic argument that exploits lifts of continuous maps to the universal covering space of the circle. We discuss the background to such diverse tools. In particular, we offer a detailed proof of the duality …
Integrative Neuromuscular Training Enhances Physical Fitness in 6- to 14-Year-Old Rugby Players.
2021
ABSTRACT Alonso-Aubin, DA, Picon-Martinez, M, Rebullido, TR, Faigenbaum, AD, Cortell-Tormo, JM, and Chulvi-Medrano, I. Integrative neuromuscular training enhances physical fitness in 6- to 14-year-old rugby players. J Strength Cond Res 35(8): 2263-2271, 2021-The purpose of this study was to assess the effects of an 8-week integrative neuromuscular training (INT) program on physical fitness measures in young rugby players. A sample of 138 male rugby players (age range, 6-14 years) was divided into 5 age-related groups: group 1 (G1) (n = 20; age, 7.05 ± 0.58), group 2 (G2) (n = 27; age, 8.57 ± 0.49), group 3 (G3) (n = 31; age, 11.02 ± 0.56), group 4 (G4) (n = 33; age, 13.12 ± 0.58, and group …
Periferie e diritti fondamentali
2020
Il volume ripercorre le principali questioni giuridiche e socio-politiche che sono collegate alla tutela dei diritti fondamentali, individuali e collettivi, nell'ambito delle periferie urbane presenti sia nel contesto socio-territoriale italiano, sia in quello spagnolo e brasiliano. The book examines the main legal and socio-political issues concerning the protection of fundamental rights in the Italian, Spanish and Brazilian suburbs.
El capitalismo, contra el planeta / 4
2007
El velo y la República
2003
The ALHAMBRA survey: reliable morphological catalogue of 22 051 early- and late-type galaxies
2013
Advanced Large Homogeneous Area Medium Band Redshift Astronomical (ALHAMBRA) is photometric survey designed to trace the cosmic evolution and cosmic variance. It covers a large area of ~4 deg2 in eight fields, where seven fields overlap with other surveys, allowing us to have complementary data in other wavelengths. All observations were carried out in 20 continuous, medium band (30 nm width) optical and 3 near-infrared (JHK) bands, providing the precise measurements of photometric redshifts. In addition, morphological classification of galaxies is crucial for any kind of galaxy formation and cosmic evolution studies, providing the information about star formation histories, their environme…
The ALHAMBRA survey: An empirical estimation of the cosmic variance for merger fraction studies based on close pairs
2014
[Aims]: Our goal is to estimate empirically the cosmic variance that affects merger fraction studies based on close pairs for the first time. [Methods]: We compute the merger fraction from photometric redshift close pairs with 10 h−1 kpc ≤ rp ≤ 50 h−1 kpc and Δv ≤ 500 km s−1 and measure it in the 48 sub-fields of the ALHAMBRA survey. We study the distribution of the measured merger fractions that follow a log-normal function and estimate the cosmic variance σv as the intrinsic dispersion of the observed distribution. We develop a maximum likelihood estimator to measure a reliable σv and avoid the dispersion due to the observational errors (including the Poisson shot noise term). [Results]: …
El Derecho De La Uniin Europea Ante La Encrucijada Del Impuesto Sobre Sucesiones Y Donaciones Espaaol (EU Law Before the Crossroad of the Spanish Inh…
2014
Spanish Abstract: El articulo analiza los efectos del Derecho de la Union Europea y las libertades fundamentales sobre el impuesto sobre sucesiones y donaciones espanol, teniendo en cuenta las implicaciones y complejas relaciones que derivan de su formulacion como impuesto estatal que ha sido parcialmente cedido a las Comunidades Autonomas. El articulo analiza la posible evolucion tras la sentencia del TJUE de 3 de septiembre de 2014 (asunto C-127/12). El autor critica la argumentacion pobre del TJUE y propone un desarrollo mas consistente del contenido de las libertades fundamentales a partir de un analisis mas solido de los juicios de comparabilidad y de justificacion. El autor tambien cr…