196,320 research outputs found

    Un appunto autografo di Malfatti nella Biblioteca Comunale di Ala

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    Si presenta la trascrizione, corredata da un breve inquadramento storico e matematico, di un appunto autografo di Gianfrancesco Malfatti (1731-1807) conservato presso la Biblioteca Comunale di Ala (Miscellanea MS 61, foglio 237).We present the transcription, accompanied by a short historical and mathematical comment, of a handwritten note by Gianfrancesco Malfatti (1731-1807) kept in the public library of Ala (Miscellanea MS 61, sheet 237)

    Into the Interstices: Everyday Practices of Refugees and Their Supporters in Europe’s Migration ‘Crisis’

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    This article investigates the interconnections between migration to Europe for asylum and the multiple ‘crises’ of the border regime that have occurred in recent decades. Drawing on 22 months of ethnographic research with refugees in Italy and Germany, the article highlights the tensions between migration policy and legislation at the structural level and the agency of refugees. The case study focuses on a protest staged by refugees in Berlin and the active involvement of its civil-society supporters. The everyday practices of refugees, including building relationships with local residents, cross-border mobility within Europe and ‘inhabiting’ the grey zones where different national jurisdictions intersect, generate frictions that open up spaces of autonomy: the ‘interstices’. Territorial, social and judicial interstices develop out of the power relations in Europe’s migration ‘battleground’

    Minor Keywords of Political Theory: Migration as a Critical Standpoint. A collaborative project of collective writing

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    Coordinated and Edited by: N De Genova, M Tazzioli Co-Authored by: Claudia Aradau, Brenna Bhandar, Manuela Bojadzijev, Josue David Cisneros, N De Genova, Julia Eckert, Elena Fontanari, Tanya Golash-Boza, Jef Huysmans, Shahram Khosravi, Clara Lecadet, Patrisia Macías-Rojas, Federica Mazzara, Anne McNevin, Peter Nyers, Stephan Scheel, Nandita Sharma, Maurice Stierl, Vicki Squire, M Tazzioli, Huub van Baar and William Walter

    On the tautological ring

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    On the rationality of moduli spaces of pointed curves

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    Motivated by several recent results on the geometry of the moduli spaces \overline{\Cal M}_{g,n} of stable curves of genus gg with nn marked points, we determine here their birational structure for small values of gg and nn by exploiting suitable plane models of the general curve. More precisely, we show that {\Cal M}_{g,n} is rational for g=2g=2 and 1n121\le n \le 12, g=3g=3 and 1n141\le n \le 14, g=4g=4 and 1n151 \le n \le 15, g=5g=5 and $1\le n\le 12
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