1,606 research outputs found
Kimmerle conjecture for the Held and O'Nan sporadic simple groups
No full textUsing the Luthar--Passi method, we investigate the Zassenhaus and
Kimmerle conjectures for normalized unit groups of integral group rings of the
Held and O'Nan sporadic simple groups. We confirm the Kimmerle conjecture for
the Held simple group and also derive for both groups some extra information
relevant to the classical Zassenhaus conjecture
Zassenhaus conjecture for central extensions of S5
No full textWe confirm a conjecture of Zassenhaus about rational conjugacy of torsion units in
integral group rings for a covering group of the symmetric group S5 and for the general linear
group GLð2; 5Þ. The first result, together with others from the literature, settles the conjugacy
question for units of prime-power order in the integral group ring of a finite Frobenius group
Analysis of Mathieu Equation Stable Solutions in the First Zone of Stability
No full textAbstractThe paper presents the results of a homogeneous Mathieu equation studies. Mathieu equation solutions are oscillations, modulated in amplitude and frequency. In the computational experiments we found dependences of the given oscillations on the ratio of the coefficients. These dependences are shown in graphs that can be used for an approximate estimation of the Mathieu equation solutions without integration
Pensar las escalas para pensar las luchas: Autor: Mathieu UHEL
No full textA través de un título sugerente, “pensar las escalas para pensar las luchas”, Mathieu Uhel entreteje la construcción teórico-crítica del concepto escala, generada por la geografía radical anglosajona de finales del siglo XX, con la necesidad/utilidad práctica de la escala para concienciar las luchas sociales. El artículo cumple un doble propósito: por un lado, delinear los elementos de lectura sobre el concepto escala; y, con ello, promover la atención de esta problemática en las luchas contemporáneas. En un primer apartado, Uhel ubica las discusiones académicas en torno a la escala, como herramienta metodológica útil para comprender la complejidad de las sociedades capitalistas; en el segundo apartado, el autor avanza la exposición en torno al contexto de la dimensión escalar del imperialismo capitalista; finalmente, el autor se centra en el rol de la actividad política a escala nacional en la tensa relación entre las imposiciones del capital y la lucha social.Por meio de um título sugestivo, “pensando escalas para pensar lutas”, Mathieu Uhel entrelaça a construção teórico-crítica do conceito de escala, gerado pela geografia radical anglo-saxônica do final do século XX, com a necessidade / utilidade prática escala para aumentar a consciência das lutas sociais. O artigo tem um duplo propósito: por um lado, delinear os elementos de leitura sobre o conceito de escala; e, com isso, promover atenção a esse problema nas lutas contemporâneas. Na primeira seção, Uhel localiza as discussões acadêmicas em torno da escala, como uma ferramenta metodológica útil para compreender a complexidade das sociedades capitalistas; na segunda seção, o autor avança a exposição em torno do contexto da dimensão escalar do imperialismo capitalista; por fim, o autor enfoca o papel da atividade política em escala nacional na tensa relação entre as imposições do capital e a luta social.Mathieu Uhel\u27s suggestive title, “Thinking about scales to think about struggles”, he interweaves the theoretical-critical construction of concept scale, generated by radical Anglo-Saxon geography in the late 20th century, with it´s practical utility to social struggles. The article serves two purposes: on the one hand, Uhel locates academic discussion around scale; and, with this, he promotes attention to this problem in contemporary struggles. In the first section, Uhel locates academic discussions around scale, as a useful methodological tool to understand the complexity of capitalist societies; in the second section, the author advances the argument around the context of the scalar dimension of capitalist imperialism; finally, the author focuses on the role of political activity on a national scale in the tense relationship between the impositions of capital and the social movement
Mathieu Ichou, Les Enfants d’immigrés à l’école
No full textIt is common to hear in the fields of educational and immigration sociology that on average, the children of immigrants do not perform as well in school as children of native-born parents. Mathieu Ichou offers an innovative sociological analysis on a topic that is heavily exploited by political and media discourse, and subject to much scientific controversy. The author takes distance from the homogenized vision of a “second generation” of students who have totally failed academically, and rep..
Integral group ring of the first Mathieu simple group
No full textWe investigate the classical Zassenhaus conjecture for the normalized unit group
of the integral group ring of the simple Mathieu group M11. As a consequence, for
this group we confirm the conjecture by Kimmerle about prime graphs
L'impatto dell'attività tintoria sull'ambiente. Firenze alla fine del Medioevo
No full textThe author aims to examine and categorize the range of dyeings materials used in the Florentine wool and silk textile industries in the late Middle Ages, focusing mainly on those produced within the regional space in order to evaluate the impact of the Florentine dyeing activity on the natural environment and the productive landscape of the Tuscan countryside. In particular, the author establishes a line of demarcation between cultivated and uncultivated resources in order to verify which constitutes an indication of the level of industrial development of medieval textile production. This further focuses on how the transition from the exploitation of wild resources to the exploitation of cultivated resources could reflect a greater degree of economic integration between the countryside and the city and contribute to the formation of a regional economic space
Mathieu de Fossey: su visión del mundo indígena mexicano
No full textThroughout these pages the author shows how Mathieu de Fossey perceived that it was not easy to make indigenous communities fit within the mould of the nation-state which, being based on the liberal and egualitarian ideology, was against the recognition of special regimes, such as those that created a peculiar status for the native population of the American territory during the period of Spanish colonial domination
Powieść o deindustrializacji i degradacji społecznej we Francji według Nicolasa Mathieu / Le roman de la désindustrialisation et du déclassement français par Nicolas Mathieu
No full textThis paper will focus on describing the sociological aspects of the changes undergone by the world of work and industry in France at the turn of the 21st century, based on a social and labour reading of Nicolas Mathieu’s novels Aux animaux la guerre (2014), now adapted for the cinema, and Leurs Enfants après eux (2018). In the context of contemporary French narrative fiction, Mathieu’s poetics, following in the footsteps of Émile Zola or, closer to home, Annie Ernaux, but also in the wake of the whole tradition of the proletarian novel, are characterised by a concern to revive the characterisation of the world of work in its profound crisis engendered by deindustrialisation, globalisation, relocation and the ideological and programmatic mutations of the French left, and the Western left in general. We will see how this author, who often goes against the grain of the dominant doxa that devalues, marginalizes and even scorns this theme, brings it out into the open, thereby exposing all the socio-political aporias of our time, and of France in particular, by painting a sociological portrait that has been forgotten or ignored.Il s’agira dans cette communication de nous attarder sur la description d’aspects sociologiques relatifs aux mutations subies au tournant du XXIe siècle par le monde du travail et par l’industrie en France à partir d’une lecture sociale et laborale des romans de Nicolas Mathieu Aux animaux la guerre (2014), entre-temps adapté au cinéma, et Leurs Enfants après eux (2018). En effet, la poétique mathieusienne se signale, dans le cadre de la fiction narrative française contemporaine, dans la foulée d’un Zola, ou plus proche de nous, d’une Annie Ernaux, par le souci de renouer avec la caractérisation du monde du travail dans sa crise profonde engendrée par la désindustrialisation, la mondialisation, la délocalisation et les mutations idéologiques et programmatiques de la gauche française, et occidentale en général. Nous verrons comment cet auteur, souvent à contrecourant de la doxa dominante, qui dévalorise, marginalise, voire méprise cette thématique, la rend au grand jour, mettant par là à nu toutes les apories sociopolitiques de notre temps, et de la France en particulier, en en brossant le portrait sociologique oublié ou tu.Abstrakt. Celem niniejszego artykułu jest analiza socjologicznych aspektów przemian, jakie zaszły w świecie pracy i przemyśle we Francji na przełomie XXI wieku, w oparciu o społeczną lekturę powieści Nicolasa Mathieu Aux animaux la guerre (2014), która doczekała się również adaptacji filmowej, oraz Leurs enfants après eux (2018). Poetyka Mathieu wyróżnia się na tle współczesnej francuskiej prozy narracyjnej, wpisując się w tradycję Émila Zoli, a bliżej naszych czasów – Annie Ernaux, poprzez wyraźne dążenie do odtworzenia i zrozumienia świata pracy w jego głębokim kryzysie, będącym skutkiem deindustrializacji, globalizacji, relokacji oraz ideologicznych i programowych przemian francuskiej (a szerzej: zachodniej) lewicy. Autor, często w kontrze do dominującego dyskursu, który marginalizuje, dewaluuje, a nawet obdarza pogardą tematykę pracy, stawia ją w centrum uwagi. Wydobywa tym samym na światło dzienne szereg aporii społeczno-politycznych współczesności, zwłaszcza francuskiej, kreśląc zarazem portret socjologiczny grup społecznych dotkniętych przemianami – portret często przemilczany lub wyparty ze sfery publicznej świadomości. Résumé. Il s’agira dans cette communication de nous attarder sur la description d’aspects sociologiques relatifs aux mutations subies au tournant du XXIe siècle par le monde du travail et par l’industrie en France à partir d’une lecture sociale et laborale des romans de Nicolas Mathieu Aux animaux la guerre (2014), entre-temps adapté au cinéma, et Leurs Enfants après eux (2018). En effet, la poétique mathieusienne se signale, dans le cadre de la fiction narrative française contemporaine, dans la foulée d’un Zola, ou plus proche de nous, d’une Annie Ernaux, mais aussi de toute la tradition du roman prolétarien, par le souci de renouer avec la caractérisation du monde du travail dans sa crise profonde engendrée par la désindustrialisation, la mondialisation, la délocalisation et les mutations idéologiques et programmatiques de la gauche française, et occidentale en général. Nous verrons comment cet auteur, souvent à contrecourant de la doxa dominante, qui dévalorise, marginalise, voire méprise cette thématique, la rend au grand jour, mettant par là à nu toutes les apories sociopolitiques de notre temps, et de la France en particulier, en en brossant le portrait sociologique oublié ou tu
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