1,727,521 research outputs found

    Forum Convegno SIM 2010 "Marketing & Sales oltre la crisi"

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    Forum Convegno SIM 2010 "Marketing & Sales oltre la crisi" Titolo Rivista: MERCATI E COMPETITIVITÀ Autori/Curatori: A cura di Silvio Cardinali Anno di pubblicazione: 2011 Fascicolo: 2 Lingua: IT Numero pagine:

    Letter from D. Cardinali to Hagan

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    Holograph letter from [D. Cardinali], [F...], to [Hagan], thanking him for the good wishes [expressing respect for his work for religion and homeland]

    Letter from Mario Cardinali to Hagan

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    Holograph letter from Mario Cardinali, Via S. Marcello 40, Rome, to Hagan, asking for a loan in order to take an apartment- now enclosing receipt of loan from Hagan, with pledge to repay within a year

    Minimum distance of Orthogonal Line-Grassmann Codes in even characteristic

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    In this paper we determine the minimum distance of orthogonal line-Grassmann codes for q even. The case q odd was solved in "I. Cardinali, L. Giuzzi, K. Kaipa, A. Pasini, Line Polar Grassmann Codes of Orthogonal Type, J. Pure Applied Algebra (doi:10.1016/j.jpaa.2015.10.007 )" We also show that for q even all minimum weight codewords are equivalent and that symplectic line-Grassmann codes are proper subcodes of codimension 2n of the orthogonal ones

    The mixed WKB-full-wave approach and its application to lower hybrid wave propagation and absorption

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    The mixed WKB-full-wave approach for calculating the 2D mode structure in tokamak plasmas is further developed based on our previous work [A. Cardinali et al., Phys. Plasmas 10, 4199 (2003) and Z. X. Lu et al., Phys. Plasmas, 19, 042104 (2012)]. A new scheme for theoretical analysis and numerical implementation of the mixed WKB-full-wave approach is formulated, based on scale separation and asymptotic analysis, to investigate lower hybrid wave (LHW) propagation and absorption. As a novel method, its comparison with other approaches is discussed. Its application to LHW propagation in concentric circular tokamak plasmas using typical FTU discharge parameters, is also demonstrated. © 2014 AIP Publishing LLC

    Geometries arising from trilinear forms on low-dimensional vector spaces

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    Let Gk(V) be the k-Grassmannian of a vector space V with dimV=n. Given a hyperplane H of Gk(V), we define in [I. Cardinali, L. Giuzzi, A. Pasini, A geometric approach to alternating k-linear forms, J. Algebraic Combin. doi: 10.1007/s10801-016-0730-6] a point-line subgeometry of PG(V) called the geometry of poles of H. In the present paper, exploiting the classification of alternating trilinear forms in low dimension, we characterize the possible geometries of poles arising for k=3 and n≤7 and propose some new constructions. We also extend a result of [J.Draisma, R. Shaw, Singular lines of trilinear forms, Linear Algebra Appl. doi: 10.1016/j.laa.2010.03.040] regarding the existence of line spreads of PG(5,K) arising from hyperplanes of G3(V)

    On orthogonal polar spaces

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    Let P\cal P be a non-degenerate polar space. In [I. Cardinali, L. Giuzzi, A. Pasini, "The generating rank of a polar grassmannian", Adv. Geom. 21:4 (2021), 515-539 doi:10.1515/advgeom-2021-0022 (arXiv:1906.10560)] we introduced an intrinsic parameter of P\cal P, called the anisotropic gap, defined as the least upper bound of the lengths of the well-ordered chains of subspaces of P\cal P containing a frame; when P\cal P is orthogonal, we also defined two other parameters of P\cal P, called the elliptic and parabolic gap, related to the universal embedding of P\cal P. In this paper, assuming P\cal P is an orthogonal polar space, we prove that the elliptic and parabolic gaps can be described as intrinsic invariants of P\cal P without making recourse to the embedding.Comment: 20 pages/revised versio

    Dalla Diagnostica artistica alla Technical Art History. Nascita di una metodologia di studio della storia dell'arte (1874-1938)

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    Il libro di Marco Cardinali sulla Technical Art History è il primo studio monografico che si sia prodotto in Italia su un ambito di ricerca confinato ad una comunità molto ristretta di addetti ai lavori: diagnosti, restauratori, alcuni storici dell’arte, alcuni fisici, alcuni chimici, alcuni ingegneri. Uno degli aspetti più interessanti del libro è nella registrazione dell’evolversi di questa dialettica. Da un lato ritroviamo lungo tutto il corso del ‘secolo breve’ conoscitori decisi a rivendicare la primazia dell’occhio sulla macchina, e soprattutto dell’esperienza visiva ‘pura’ sull’idea di una meccanizzazione del sapere storico-artistico; dall’altro uomini in camice bianco chiamati ad affrontare il problema di un’interpretazione scientifica dei caratteri costitutivi e del degrado delle opere d’arte. Sullo sfondo di questi tentativi resta l’idea che l’analisi delle opere d’arte mediante strumentazioni scientifiche aumentava le conoscenze su di esse. Il lavoro sul corpo dell’arte non è più un percorso che possa essere compiuto in solitaria dallo storico dell’arte o dal diagnosta o dal restauratore. (dalla prefazione di Riccardo Lattuada
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