156 research outputs found
Affine Pieri rule for periodic Macdonald spherical functions and fusion rings
No full textLet gˆ be an untwisted affine Lie algebra or the twisted counterpart thereof (which excludes the affine Lie algebras of type BCˆn=A2n(2)). We present an affine Pieri rule for a basis of periodic Macdonald spherical functions associated with gˆ. In type Aˆn−1=An−1(1) the formula in question reproduces an affine Pieri rule for cylindric Hall-Littlewood polynomials due to Korff, which at t=0 specializes in turn to a well-known Pieri formula in the fusion ring of genus zero slˆ(n)c-Wess-Zumino-Witten conformal field theories.Applied Probabilit
Kraśkiewicz-Pragacz Modules and Pieri and Dual Pieri Rules for Schubert Polynomials
No full textIn their 1987 paper Kra\\u27skiewicz and Pragacz defined certain modules \smod_w (), which we call KP modules, over the upper triangular Lie algebra whose characters are Schubert polynomials. In a previous work the author showed that the tensor product of KP modules always has a KP filtration, i.e. a filtration whose each successive quotients are isomorphic to KP modules. In this paper we explicitly construct such filtrations for certain special cases of these tensor product modules, namely \smod_w \otimes S^d(K^i) and \smod_w \otimes \bigwedge^d(K^i), corresponding to Pieri and dual Pieri rules for Schubert polynomials
Kraskiewicz-Pragacz modules and Pieri and dual Pieri rules for Schubert polynomials
No full textIn their 1987 paper Kraskiewicz and Pragacz defined certain modules, which we call KP modules, over the upper triangular Lie algebra whose characters are Schubert polynomials. In a previous work the author showed that the tensor product of Kraskiewicz-Pragacz modules always has KP filtration, i.e. a filtration whose each successive quotients are isomorphic to KP modules. In this paper we explicitly construct such filtrations for certain special cases of these tensor product modules, namely Sw Sd(Ki) and Sw Vd(Ki), corresponding to Pieri and dual Pieri rules for Schubert polynomials
A MULTIDISCIPLINARY CONTRIBUTION TO THE ILYOCYPRIS PUZZLE
No full textIlyocypris Brady & Norman, 1889 is a widespread freshwater ostracod
genus that includes many living and fossil species (34 living species according
to MARTENS & SAVATENALINTON, 2011; 28 living species according to KARANOVIC
& LEE, 2013; around 190 fossil species according to KEMPF, 1980;
1997). The identification of Ilyocypris species is based on the soft parts and
the valves characteristics of adult specimens (MEISCH, 2000). VAN HARTEN
(1979: p.72) was the first to recognise the diagnostic value of the “marginal
ripplets” located on the postero-ventral internal marginal zone of left valves.
Such features, when preserved, have been regarded as a taxonomic speciesspecific
character useful particularly to palaeontologists for the distinction of
the most common Ilyocypris species, (JANZ, 1994). Another diagnostic feature
of the carapace is the presence/absence of tubercles and spines in some
species. Non-tuberculated and tuberculated specimens of I. bradyi and I.
gibba and many transitional forms between these end members are often
found in shells of I. gibba (VAN HARTEN, 1979; MEISCH, 1988, 2000; YANG et
al., 2002). Although the occurrence of tubercles has been supposed to be
environmentally cued (ANADÓN et al., 1986; YANG et al., 2002), ornamentation
is still considered an important character for species identification
(MEISCH, 2000; SYLVESTER BRADLEY & KEMPF, 1979).Our research aims to test the taxonomic significance of the carapace
characteristics through the examination of specimens unambiguously identified
on the basis of their soft part morphology according to Meisch (2000), in
order to provide useful keys for the identification of Ilyocypris shells in fossil
assemblages. We analysed adult valves of living Ilyocypris species collected in
Italy, namely: Ilyocypris bradyi (18 carapaces), I. decipiens (c. 7), I. gibba (c.
17), I. inermis (c. 14) and I. monstrifica (c. 8)
Skew Pieri Rules for Hall-Littlewood Functions
No full textInternational audienceWe produce skew Pieri Rules for Hall–Littlewood functions in the spirit of Assaf and McNamara (FPSAC, 2010). The first two were conjectured by the first author (FPSAC, 2011). The key ingredients in the proofs are a q-binomial identity for skew partitions that are horizontal strips and a Hopf algebraic identity that expands products of skew elements in terms of the coproduct and antipode.Nous produisons quelques règles dissymètrique de Pieri pour les fonctions Hall–Littlewood au sens de Assaf et McNamara (FPSAC, 2010). Les premières deux règles ont ètè conjecturèe par le premier auteur (FPSAC, 2011). Les principaux ingrèdients dans les preuves sont une identitè q-binomiale pour les partitions dissymètrique qui sont bandes horizontales et une identitè de Hopf qui exprime les produits d'èlèments dissymètrique en termes du coproduit et de l'antipode
Ethno-anthropological Symbolism in Elsa Morante's Works
No full textLa ricerca sviluppa le più recenti proposte teoriche dell'antropologia interpretativa, applicandole alla teoria della letteratura. Si concentra sull'ipotesto antropologico attivo nell'opera di Elsa Morante, con particolare riferimento alla produzione successiva agli anni Sessanta (Il mondo salvato dai ragazzini, 1968; La Storia, 1974; Aracoeli, 1982), in cui si verifica la concentrazione del materiale etno-antropologico di derivazione demartiniana. La tesi si propone di sondare la prolificità del rapporto intertestuale Morante-De Martino, soprattutto mediante la ricorrenza di alcuni luoghi significanti che accomunano la ricerca poetica e quella scientifica degli autori, uniti da una fondamentale rielaborazione del concetto di "umanesimo". Centrale, a questo proposito, diviene la nozione di "crisi" della persona, direttamente collegata al vissuto da "fine del mondo" e alla percezione apocalittica post-atomica. Alla crisi del soggetto contemporaneo si
guarda nei termini di una risoluzione culturale, che chiama direttamente in causa il rapporto tra letteratura e ritualità. Secondo la prospettiva sociologica durkheimiana, si indagano i momenti della piacularità e della festa, ricorsivi nella scrittura morantiana, come fondanti il discorso (la narrazione mitografica) della comunità. Di qui, la riflessione si attesta sulle strategie della comunicazione finzionale in ambito etno-antropologico, con attenzione all'autorialità dello stesso antropologo sul campo. Non mancano raffronti con le esperienze letterarie più significative nell'orizzonte culturale delineato: in particolar modo, si tiene in considerazione il fondamentale rapporto Morante-Pasolini. The research develops the most recent theoretical proposals of interpretive anthropology , applying them to the theory of literature. It focuses on anthropological "ipotesto" active in the work of Elsa Morante , with particular reference to the production next to the Sixties ( The world is saved by children , 1968; History , 1974; Aracoeli , 1982) , in which occurs the concentration of De Martino's ethno- anthropological material . The thesis aims to explore the prolificacy of the intertextual relationship Morante -De Martino , particularly by the occurrence of some significant places that are common to the poetic and scientific research of the authors , joined by a fundamental reworking of the concept of " humanism." Central in this regard , it becomes the notion of "crisis" of the person, directly connected to the living "end of the world " and the apocalyptic post- atomic perception. The crisis of the contemporary subject is
view in terms of a cultural resolution , which directly concerns the relationship between literature and rituals . According to Durkheim's sociological perspective , we investigate the moments of "piacularità" and "festa", in Morante's writing recursive , as founding the discourse ( mythographic narration ) of the community. Hence , the reflection came on the strategies of fictional communication within the ethno- anthropological , anthropologist carefully authorship of the same on field. There is no lack comparisons with the most significant literary experiences in contemporary culture outlined : in particular, it takes into account the fundamental relationship Morante - Pasolini
Dystopia as a narrative keyword: Tawada Yōko’s responses to Japanese 3/11
No full textOn 11th March 2011 at 2:46 PM the Japanese writer Tawada Yōko was in Berlin, miles away from her Japanese homeland. Still, the author got affected by the 9 magnitude earthquake that stroke Tōhoku coast at that time. As the tsunami came to shore wiping out everything that was spared by the quake, the aftershocks reached Tawada and now reverberates in some of her last new literary works. First, Fushi no Shima (“The Island of the Eternal Life”) published in the collection Sore demo sangatsu wa, mata : a ten-page story about a no more lively island, namely, Japan. Then, after years of muteness regarding the Daishinsai topic, the 2014 collection of novels published under the evocative title Kentōshi (“The messenger of the votive lantern”) resonates the echo of that aftermath again : Tawada imagines a forthcoming catastrophic scenario clearly influenced by 2011 disaster. The dystopian keyword adopted by the author for these post-Fukushima narratives represents a camera lens through which the writer observes Japanese 11th March. This brief article aims to investigate these two Tawada Yōko’s responses to Japanese 3/11 with the aid of the journal the author wrote during those days and published under the French title Journal des jours tremblants : Après Fukushima
Wird irgendetwas mit mir geschehen? Psycho(patho)logical perspectives on Hannah Arendt’s The Banality of Evil
No full textIn 1961, the Eichmann trial opened in Jerusalem, and its worldwide resonance through media coverage questioned the collective conscience about responsibility for Nazi crimes. German philosopher Hannah Arendt attended the process as a special correspondent for the U.S. magazine The New Yorker. Her Eichmann in Jerusalem: A Report on the Banality of Evil (1963) caused a great scandal: the author advanced the brazen idea of collective co-responsibility for Nazi crimes, reporting the identikit of a standard bureaucrat, a seemingly ordinary man, just like any one of us. Almost sixty years after its publication, this study adopts a primarily psycho(patho)logical perspective to reflect once again on the considerations Arendt shared in the Banality of Evil. In showing the multiple facets of banality, the research investigates recent results in the analysis of the criminal mind in order to shed light on the etiology of evil
Remarks on the paper "Skew Pieri rules for Hall-Littlewood functions" by Konvalinka and Lauve
No full textIn a recent paper Konvalinka and Lauve proved several skew Pieri rules for Hall-Littlewood polynomials. In this note we show that q-analogues of these rules are encoded in a q-binomial theorem for Macdonald polynomials due to Lascoux and the author
Anzen ka, kiken ka: radiation anxiety in the multilingual Hamlet No See by Tawada Yōko
No full textTawada Yōko has enjoyed international acclaim in recent years for her eclectic production that overcomes ethnic and linguistic barriers to constitute a universal language that is the literary one. This contribution analyzes the poem Hamlet No See (2011?), written in Japanese/English and translated into German by the author, which constitutes a ground for intertextual experimentation through the revival of cross-cultural elements such as Shakespeare's Hamlet.
After a brief introduction related to the role of multilingualism in the expression of psychological trauma, the study aims to investigate how the multilingualism performed by Tawada in her poem can assist in verbalizing the post-Fukushima radiation anxiety in the attempt to overcome the inexplicable
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