1,720,977 research outputs found
ARTLINE MILANO. 30 progetti per il Parco d’Arte Contemporanea
No full textMostra dei progetti per il nascente parco delle sculture di Milano, denominato ArtLine a cui hanno partecipato 30 artisti internazionali: Alis/Fillol, Giorgio Andreotta Calò, Francesco Arena, Riccardo Benassi, Rossella Biscotti, Linda Fregni Nagler, Adelita Husni-Bey, Nicola Martini, Margherita Moscardini, Ornaghi e Prestinari, Alice Ronchi, Matteo Rubbi, Elisa Strinna, Nico Vascellari, Serena Vestrucci, Maria Anwander, Mircea Cantor, Shilpa Gupta, Eva Kotátková, Maria Loboda, Armando Lulaj, Marie Lund, Haroon Mirza, Marlie Mul, Amalia Pica, Wilfredo Prieto, Jon Rafman, Timur Si-Qin, Rayyane Tabet, Xu Zhen. Una giuria internazionale composta da: Charles Esche, Mary Jane Jacob, James Lingwood, Gianfranco Maraniello, Iolanda Ratti, Lea Vergine, Angela Vettese, ha scelto gli otto progetti vincitori
Groups whose vanishing class sizes are not divisible by a given prime
No full textLet G be a finite group. An element g∈G is a vanishing element of G if there exists an irreducible complex character χ of G such that χ(g) = 0: if this is the case, we say that the conjugacy class of g in G is a vanishing conjugacy class of G. In this paper we show that, if the size of every vanishing conjugacy class of G is not divisible by a given prime number p, then G has a normal p-complement and abelian Sylow p-subgroups
Finite groups with real conjugacy classes of prime size
Full text linkWe determine the structure of a finite group G whose noncentral real conjugacy classes have prime size. In particular, we show that G is solvable and that the set of the sizes of its real classes is one of the following: {1},{1, 2}, {1, p}, or {1, 2, p}, where p is an odd prime
Nonvanishing elements for Brauer characters
Full text linkLet G be a finite group and p a prime. We say that a p-regular element g of G is p-nonvanishing if no irreducible p-Brauer character of G takes the value 0 on g. The main result of this paper shows that if G is solvable and g is a p-regular element which is p-nonvanishing, then g lies in a normal subgroup of G whose p-length and p'-length are both at most 2 (with possible exceptions for p\leq 7), the bound being best possible. This result is obtained through the analysis of one particular orbit condition in linear actions of solvable groups on finite vector spaces, and it generalizes (for p>7) some results in Dolfi and Pacifici [‘Zeros of Brauer characters and linear actions of finite groups’, J. Algebra 340 (2011), 104–113]
Zeros of Brauer characters and linear actions of finite groups: Small primes
Full text linkWe describe the finite groups whose p-Brauer character table, for p = 2 or p = 3, does not contain any zero. This completes the analysis in [6], where we considered the case p ≥ 5
Zeros of Brauer characters and linear actions of finite groups
No full textAbstractLet G be a finite group, and p a prime number greater than 3. It is known that, if every irreducible p-Brauer character of G does not vanish on any p′-element of G, then G is solvable. The primary aim of this work is to describe the structure of groups satisfying the above condition; among other more specific properties, we show that the p′-length of G is at most 2 (the bound being the best possible). The structural results are obtained as an application of the main theorem in this paper, that deals with particular linear actions of solvable groups on finite vector spaces
Incomplete vertices in the prime graph on conjugacy class sizes of finite groups
No full textGiven a finite group G, consider the prime graph built on the set of conjugacy class sizes of G. Denoting by π0π0 the set of vertices of this graph that are not adjacent to at least one other vertex, we show that the Hall π0π0-subgroups of G (which do exist) are metabelia
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
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