1,721,725 research outputs found
Wild Galois representations:elliptic curves over a 3-adic field
Full text linkGiven an elliptic curve over a local field with residue characteristic , we investigate the action of the absolute Galois group of in the case of potentially good reduction. The hardest case is when the -adic Galois representation attached to has non-cyclic inertia image, isomorphic to . In this work we describe such a representation explicitly.<br/
Wild Galois representations:elliptic curves over a 2-adic field with non-abelian inertia action
Full text linkIn this paper we present a description of the -adic Galois representation attached to an elliptic curve defined over a -adic field , in the case where the image of inertia is non-abelian. There are two possibilities for the image of inertia, namely and \SL_2(\F_3), and in each case we need to distinguish whether the inertia degree of over \Q_2 is even or odd. The result presented here are being implemented in an algorithm to compute explicitly the Galois representation in these four cases
Wild Galois representations: a family of hyperelliptic curves with large inertia image
Full text linkIn this work we generalise the main result of [1] to the family of hyperelliptic curves with potentially good reduction over a p-adic field which have genus g=(p-1)/2 and the largest possible image of inertia under the ℓ-adic Galois representation associated to its Jacobian. We will prove that this Galois representation factors as the tensor product of an unramified character and an irreducible representation of a finite group, which can be either equal to the inertia image (in which case the representation is easily determined) or a C2-extension of it. In this second case, there are two suitable representations and we will describe the Galois action explicitly in order to determine the correct one.</p
I Criteri Ambientali Minimi nella realizzazione di opere pubbliche
No full textGli strumenti normativi e procedurali per la realizzazione e la governance di opere pubbliche rendono oggi obbligatoria l’applicazione dei CAM, la cui corretta attuazione consente di controllare la sostenibilità ambientale dei progetti e degli intervenenti
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Dagli strumenti volontari agli standard obbligatori nelle costruzioni per un habitat umano sostenibile
No full textAppropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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