92,948 research outputs found
The Verdier Hypercovering Theorem
No full textAbstractThis note gives a simple cocycle-theoretic proof of the Verdier hypercovering theorem. This theorem approximates morphisms [X, Y] in the homotopy category of simplicial sheaves or presheaves by simplicial homotopy classes of maps, in the case where Y is locally fibrant. The statement proved in this paper is a generalization of the standard Verdier hypercovering result in that it is pointed (in a very broad sense) and there is no requirement for the source object X to be locally fibrant.</jats:p
Rencontre avec Mathilde Azzopardi et les éditions Verdier
No full textLe 8 février dernier se tenait au sein des murs de l'université d'Aix un entretien avec Mathilde Azzopardi des éditions Verdier. Une discussion passionnante sur l'histoire de la maison d'édition aux couvertures jaunes et autour de l'édition de littérature traduite. Parmi les collections de la maison, beaucoup sont consacrées à la littérature traduite. Selon vous, cela constitue-t-il l’identité de la maison ? Quel est le rôle de la traduction chez Verdier ? Mathilde Azzopardi : Verdier a été f..
Verdier Duality (Lecture 21)
No full textLet k be an algebraically closed field, ℓ a prime number which is invertible in k, X an algebraic curve over k and G a reductive group scheme over X. The direct image of the constant sheaf along the map RanG(X) → Ran(X) can be regarded as a sheaf A on the Ran space Ran(X), whose stalk at a point µ: S → X(k) having image {x1,..., xm} ⊆ X(k) is given by Aµ ≃ ⊗ C ∗ (GrG,xi; Zℓ). The main result of the first part of this course is that the cochain complex C ∗ (BunG(X); Zℓ) can be identified with the global sections of A. Roughly speaking, our next move is to exploit this fact by analyzing the Verdier dual of A (or, more precisely, the Verdier dual of a “reduced version ” of A which we will discuss in the next two lectures). Since the Ran space Ran(X) is an infinite-dimensional algebro-geometric object, the classical theory of Verdier duality does not apply directly. In this lecture, we will give an overview of Verdier duality in the setting of topology, and describe how it can be adapted to spaces like Ran(X). We begin by reviewing the theory of sheaves. For the remainder of this lecture, let us fix an ∞-category C which admits small limits and colimits. Let Y be a topological space and let U(Y) denote the partially ordered set of all open subsets of Y. Recall that a C-valued sheaf on Y is a functor F: U(Y) op → C with the following property: for each open cover {Uα} of an open set U ⊆ Y, the canonical ma
Toulouse – 25 allée François-Verdier
No full textDate de l'opération : 1990 (SD) Inventeur(s) : Cazes Quitterie La réalisation d’un sondage ponctuel au n° 25 de l’allée F. Verdier [ (Fig. n°1 : Localisation des fouilles effectuées dans la ville), plan général, site B] a permis de confirmer la présence sur cette parcelle d’une partie de l’ancien cellier du chapitre de la cathédrale Saint-Étienne, construit à la fin du XIVe s., réaménagé dans le courant du XVIIe s. et dont l’emplacement nous était connu grâce à un plan dessiné par l’architect..
Variations on the Author
No full text“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
On tadpole relations via Verdier Specialization
No full textUsing the construct of ‘Verdier specialization’, we provide a purely mathematical derivation of Chern class identities which upon integration yield the D3-brane tadpole relations coming from the equivalence between F-theory and associated weakly coupled type IIB orientifold limits. In particular, we find that all Chern class identities associated with weak coupling limits appearing in the physics literature are manifestations of a relative version of Verdier’s specialization formula.postprin
Remy Belleau, Œuvres poétiques, tome V (1573-1577), sous la direction de Guy Demerson, édition critique par Jean Braybrook, Guy Demerson et Maurice-F. Verdier
No full textClément Michèle. Remy Belleau, Œuvres poétiques, tome V (1573-1577), sous la direction de Guy Demerson, édition critique par Jean Braybrook, Guy Demerson et Maurice-F. Verdier. In: Réforme, Humanisme, Renaissance, n°61, 2005. pp. 184-186
Remy Belleau, Œuvres poétiques, tome V (1573-1577), sous la direction de Guy Demerson, édition critique par Jean Braybrook, Guy Demerson et Maurice-F. Verdier
No full textClément Michèle. Remy Belleau, Œuvres poétiques, tome V (1573-1577), sous la direction de Guy Demerson, édition critique par Jean Braybrook, Guy Demerson et Maurice-F. Verdier. In: Réforme, Humanisme, Renaissance, n°61, 2005. pp. 184-186
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
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