Search results for "paces"

showing 10 items of 496 documents

MR 3007673 Reviewed Geiss F. The Unirationality of Hurwitz spaces of 6-gonal curves of small genus. Documenta Mathematica (2012) 17, 627--640. (Revie…

2013

Let H (d, w) be the Hurwitz space that parametrizes degree d simple coverings of the projective line with w = 2g + 2d - 2 branch points. A classic result affirms the unirationality of these spaces for d \leq 3. Successively, Arbarello and Cornalba in [E. Arbarello and M. Cornalba, Footnotes to a paper of Beniamino Segre, Math. Ann. 256 (1981), 341--362] prove that the spaces H (d, w) are unirational in the following cases: d \leq 5 and g \geq d - 1, d = 6 and 5 \leq g \leq 10 or g = 12 and d = 7 and g = 7. In this paper, the author studies the problem of unirationality over an algebraically closed field of characteristic zero when d = 6. In particular, the author proves that the spaces H (6…

Unirationality Hurwitz spaces.Settore MAT/03 - Geometria
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Geometric mean and triangles inscribed in a semicircle in Banach spaces

2008

AbstractWe consider the triangles with vertices x, −x and y where x,y are points on the unit sphere of a normed space. Using the geometric means of the variable lengths of the sides of these triangles, we define two geometric constants for Banach spaces. These constants are closely related to the modulus of convexity of the space under consideration, and they seem to represent a useful tool to estimate the exact values of the James and Jordan–von Neumann constants of some Banach spaces.

Unit sphereUniformly non-square Banach spacePure mathematicsApplied MathematicsMathematical analysisBanach spaceUniformly convex spaceBanach manifoldModulus of convexitySpace (mathematics)Normal structureConvexityGeometry of normed spacesInterpolation spaceLp spaceAnalysisNormed vector spaceMathematicsJournal of Mathematical Analysis and Applications
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Urban Greening management in the framework of Smart City Development

2014

Quality of green spaces is an important indicator in the smart urban evolution. Integration between green management needs and ecosystem services within environmental policies and local development plans is often very limited. Urban green infrastructures and related issues still arouse poor interest, mainly in South Mediterranean cities. Methods for full assessment of urban green areas integrating diverse features of sustainability (from biodiversity to public awareness and fruition) are still lacking. Here we aim to present an integrated tool to evaluate/monitor the state and sustainability of urban green spaces. The goal is to support the governance systems of urban green areas by focusin…

Urban Green ManagementGreen GovernanceSettore BIO/02 - Botanica SistematicaUrban Green spaces
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Crisi globali, nuove diseguaglianze e co-produzione di spazi: una prospettiva di ricerca

2021

L’articolo propone una riflessione critica sul rischio di negazione sostanziale di diritti di cittadinanza a partire dalle forme di discriminazione nell’uso e fruizione dello spazio pubblico introdotte dalle crisi globali. La co-produzione di nuovi spazi alla micro-scala e alla scala di quartiere (a partire dagli spazi pubblici o semipubblici spesso privatizzati o sottoutilizzati) può divenire l’occasione per la generazione di nuovi luoghi di condivisione e socialità che rispondano alla richiesta di nuovi servizi e definiscano al contempo il profilo di una pratica urbanistica innovativa, fondata sul pieno riconoscimento del diritto alla città e sul patto istituzionicittadini This article pr…

Urban Studiescrisi globaliVisual Arts and Performing Artsco-produced spacesspazi coprodottiGeography Planning and DevelopmentGlobal criseSettore ICAR/21 - Urbanisticaright to the citydiritto alla cittaTERRITORIO
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Reshaping the city ground-scape with vegetation

2011

Innovative Design Experiences based on soil shaping on urban spaces

Urban open spaces soil nature-city
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PROPOSTA DI RIGENERAZIONE E GESTIONE DEGLI SPAZI PUBBLICI NELLA CITTÀ DI KOS, GRECIA

2021

The theme falls within the proposals of strategies, tools and forms of housing and urban regeneration and tackles the case of the city of Kos. There currently the recovery and the enhancement of public space in the city is being attempted, and specifically of those urban areas which have long suffered very strong exploitation pressure by private interests as a result of tourism.

Urban regeneration environment management public spaces governanceSettore ICAR/12 - Tecnologia Dell'Architettura
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Giustizia ambientale e recupero delle aree verdi: il caso di Palermo

2021

L’urban shrinkage è diventata una questione centrale tanto nel dibattito scientifico quanto nell’agenda politica di diverse città europee. Secondo i dati EUROSTAT (2019), circa il 40% delle città europee con più di 200.000 abitanti stanno perdendo popolazione; una contrazione che si esplicita maggiormente, sotto il profilo spaziale, in una progressiva sottoutilizzazione del patrimonio edificato, così come nel contestuale incremento di aree e terreni in stato di abbandono. In questo quadro controverso di mutazione strutturale della città, così come l’abbiamo conosciuta, le politiche urbane alla prova in Europa tentano di declinare la decrescita quale occasione strategica di investimento sull…

Urban shrinkage became a central issue in both the scientific debate and the political agenda of several European cities. According to EUROSTAT data (2019) about 40% of European cities with more than 200000 inhabitants are losing population. A shrinkage that is more explicit in a progressive underutilization of the built heritage as well as in the concomitant increase of abandoned areas. In this controversial framework of structural mutation of the city urban policies in Europe try to decline the degrowth as a strategic opportunity to invest in green areas in order to increase urban quality and to act simultaneously on the development of local economies. With respect to the above framework this contribution focuses on the evaluation of the effects that the project of new public green spaces have generated on some sample areas on the outskirts of the city of Palermo. An urban context where according to the latest Svimez Report (2019) the phenomenon of urban shrinkage represents a constantly growing trend and on which the new Master Plan operates through a revival of interventions on environmental capital and urban green areas of the city.Settore ICAR/21 - Urbanistica
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One-dimensional nonlinear boundary value problems with variable exponent

2018

In this paper, a class of nonlinear differential boundary value problems with variable exponent is investigated. The existence of at least one non-zero solution is established, without assuming on the nonlinear term any condition either at zero or at infinity. The approach is developed within the framework of the Orlicz-Sobolev spaces with variable exponent and it is based on a local minimum theorem for differentiable functions.

Variable exponent Sobolev spacemedia_common.quotation_subject02 engineering and technology01 natural sciences0202 electrical engineering electronic engineering information engineeringDiscrete Mathematics and CombinatoricsBoundary value problemDifferentiable function0101 mathematicsDifferential (infinitesimal)P(x)-LaplacianDiscrete Mathematics and Combinatoricmedia_commonMathematicsDirichlet problemDirichlet problemApplied Mathematics010102 general mathematicsMathematical analysisZero (complex analysis)AnalysiDirichlet problem; P(x)-Laplacian; Variable exponent Sobolev spaces; Analysis; Discrete Mathematics and Combinatorics; Applied MathematicsMixed boundary conditionInfinityNonlinear system020201 artificial intelligence & image processingAnalysis
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The ACM property for unions of lines in P1×P2

2021

This paper examines the Arithmetically Cohen-Macaulay (ACM) property for certain codimension 2 varieties in P1×P2 called sets of lines in P1×P2 (not necessarily reduced). We discuss some obstacles to finding a general characterization. We then consider certain classes of such curves, and we address two questions. First, when are they themselves ACM? Second, in a non-ACM reduced configuration, is it possible to replace one component of a primary (prime) decomposition by a suitable power (i.e. to “fatten” one line) to make the resulting scheme ACM? Finally, for our classes of such curves, we characterize the locally Cohen-Macaulay property in combinatorial terms by introducing the definition …

Varieties in multiprojective spacesConfiguration of linesArithmetically Cohen-Macaulay; Configuration of lines; Varieties in multiprojective spacesArithmetically Cohen-Macaulay Configuration of lines Varieties in multiprojective spacesArithmetically Cohen-Macaulay
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Making Space for Creativity : Niche Construction and the Artist’s Studio

2022

Abstract It is increasingly acknowledged that creativity cannot be fully understood without considering the setting where it takes place. Building on this premise, we use the concepts of niche construction, scaffolding, coupling, and functional integration to expound on the environmentally situated nature of painters’ studio work. Our analysis shows studios to be multi-resource niches that are customized by artists to support various capacities, states, and actions crucial to painting. When at work in these personalized spaces, painters do not need to rely solely on their “inner” powers of imagination, memory, decision making, and technique to execute their paintings. Instead, with the help…

Visual Arts and Performing ArtstaidemaalarittyötilatGeneralLiterature_MISCELLANEOUSPhilosophypainterstaiteellinen työluovuustilaluova toimintaMusiccreativitypersonalized spacestaidefilosofiaateljeet
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