Search results for "motivi"
showing 10 items of 40 documents
Orientation theory in arithmetic geometry
2016
This work is devoted to study orientation theory in arithmetic geometric within the motivic homotopy theory of Morel and Voevodsky. The main tool is a formulation of the absolute purity property for an \emph{arithmetic cohomology theory}, either represented by a cartesian section of the stable homotopy category or satisfying suitable axioms. We give many examples, formulate conjectures and prove a useful property of analytical invariance. Within this axiomatic, we thoroughly develop the theory of characteristic and fundamental classes, Gysin and residue morphisms. This is used to prove Riemann-Roch formulas, in Grothendieck style for arbitrary natural transformations of cohomologies, and a …
Lernmotivation der Deutschlernenden in der gymnasialen Oberstufe in Finnland : eine Vergleichstudie über den Motivationsstand der A- und B3-Deutschl…
2005
Orientarsi nel mondo. A proposito di intuizione ed emotività
2017
Stare al mondo è vicenda complessa. La possibilità di orientarsi nel mondo implica, infatti, reattività, immediatezza, sollecitudine, ma, ad un tempo, riflessione, meditazione, giudizio. Richiede l'applicazione indisturbata di automatismi e, insieme, la capacità di interromperne il corso con scelte consapevoli. Talvolta risulta essenziale prestare obbedienza cieca e quel che sentiamo e pensiamo in prima battuta, talvolta si rivela altrettanto decisivo resistere alla tentazione quotidiana di acquietarci sui pensieri, le sensazioni, le credenze che ci sono più familiari, ma che in determinati contesti possono farci perdere il contatto con una realtà che ci sorprende e ci chiede nuovi strument…
Racionalismo y emotivismo en perspectiva neuroética
2017
El desarrollo de la neuroética ha tendido a privilegiar el papel de la emoción en detrimento del razonamiento en la deliberación moral. En esta comunicación deseo contraponer dos modelos de deliberación moral que se han articulado desde la neuroética: uno de corte emotivista, desarrollado por Haidt y Lakoff y otro, pretendidamente racionalista, elaborado recientemente por Hugo Mercier. Mi objetivo es determinar si Mercier lleva realmente a cabo una rehabilitación del razonamiento en la neuroética o si, por el contrario, su planteamiento es deudor del de los enfoques emotivistas. PALABRAS CLAVE: neuroética, Lakoff, Haidt, Mercier, deliberación.
Functional equations of the dilogarithm in motivic cohomology
2009
We prove relations between fractional linear cycles in Bloch's integral cubical higher Chow complex in codimension two of number fields, which correspond to functional equations of the dilogarithm. These relations suffice, as we shall demonstrate with a few examples, to write down enough relations in Bloch's integral higher Chow group CH^2(F,3) for certain number fields F to detect torsion cycles. Using the regulator map to Deligne cohomology, one can check the non-triviality of the torsion cycles thus obtained. Using this combination of methods, we obtain explicit higher Chow cycles generating the integral motivic cohomology groups of some number fields.
𝔸1-contractibility of affine modifications
2019
We introduce Koras–Russell fiber bundles over algebraically closed fields of characteristic zero. After a single suspension, this exhibits an infinite family of smooth affine [Formula: see text]-contractible [Formula: see text]-folds. Moreover, we give examples of stably [Formula: see text]-contractible smooth affine [Formula: see text]-folds containing a Brieskorn–Pham surface, and a family of smooth affine [Formula: see text]-folds with a higher-dimensional [Formula: see text]-contractible total space.
On some aspects of Borel-Moore homology in motivic homotopy : weight and Quillen’s G-theory
2016
The theme of this thesis is different aspects of Borel-Moore theory in the world of motives. Classically, over the field of complex numbers, Borel-Moore homology, also called “homology with compact support”, has some properties quite different from singular homology. In this thesis we study some generalizations and applications of this theory in triangulated categories of motives.The thesis is composed of two parts. In the first part we define Borel-Moore motivic homology in the triangulated categories of mixed motives defined by Cisinski and Déglise and study its various functorial properties, especially a functoriality similar to the refined Gysin morphism defined by Fulton. These results…
Il legislatore scopre “ancora una volta” il concordato sui motivi d’appello e “per la prima volta” la prova orale nell’immediatezza. Sezioni Prima. C…
2018
Il contributo, scritto a due mani, affronta le due novità in tema di appello penale. Caterina Scaccianoce si occupa della Prima Sezione, ovvero del concordato sui motivi d’appello: reinserito dal legislatore del 2017, dopo un’analisi della fisionomia dell’istituto, vengono messi in luce gli aspetti controversi dei profili inediti dell’ultima edizione, con particolare attenzione alle reazioni della dottrina e prefigurando, infine, le prospettive di applicabilità del congegno.