Search results for "Arabo"
showing 10 items of 151 documents
La Nahda par l’Iqtibas: naissance du théâtre arabe
2007
The Young Egyptian Theatre: Ahmad al-‘Attàr and the ‘Temple Independent Company’
2005
Stability of degenerate parabolic Cauchy problems
2015
We prove that solutions to Cauchy problems related to the $p$-parabolic equations are stable with respect to the nonlinearity exponent $p$. More specifically, solutions with a fixed initial trace converge in an $L^q$-space to a solution of the limit problem as $p>2$ varies.
Palermo e l'eredità Arabo-normanna
2015
La Palermo arabo-normanna mantiene viva la memoria di una città aperta, multietnica, riflesso e manifestazione di un sincretismo culturale che, nei secoli, l’ha resa unica e meritevole di essere custodita, valorizzata e riconosciuta come un autentico “gioiello”, patrimonio dell’umanità. Tra i monumenti arabo-normanni presenti, ne sono stati selezionati undici che preservano in modo pressoché integrale le componenti architettoniche e decorative e che si presentano in buono stato di conservazione. Si tratta infatti delle opere più rappresentative e artisticamente rilevanti nelle quali è possibile riconoscere inequivocabilmente i tratti salienti dell’arte arabo - normanna in tutte le sue mirab…
THE 1-HARMONIC FLOW WITH VALUES IN A HYPEROCTANT OF THE N-SPHERE
2014
We prove the existence of solutions to the 1-harmonic flow — that is, the formal gradient flow of the total variation of a vector field with respect to the [math] -distance — from a domain of [math] into a hyperoctant of the [math] -dimensional unit sphere, [math] , under homogeneous Neumann boundary conditions. In particular, we characterize the lower-order term appearing in the Euler–Lagrange formulation in terms of the “geodesic representative” of a BV-director field on its jump set. Such characterization relies on a lower semicontinuity argument which leads to a nontrivial and nonconvex minimization problem: to find a shortest path between two points on [math] with respect to a metric w…
On the a posteriori error analysis for linear Fokker-Planck models in convection-dominated diffusion problems
2018
This work is aimed at the derivation of reliable and efficient a posteriori error estimates for convection-dominated diffusion problems motivated by a linear Fokker-Planck problem appearing in computational neuroscience. We obtain computable error bounds of the functional type for the static and time-dependent case and for different boundary conditions (mixed and pure Neumann boundary conditions). Finally, we present a set of various numerical examples including discussions on mesh adaptivity and space-time discretisation. The numerical results confirm the reliability and efficiency of the error estimates derived.
Le donne nel teatro di Muḥammad al-Šarafī
2010
Irregular Time Dependent Obstacles
2010
Abstract We study the obstacle problem for the Evolutionary p-Laplace Equation when the obstacle is discontinuous and does not have regularity in the time variable. Two quite different procedures yield the same solution.
Il patrimonio arabo-normanno: stato delle conoscenze e proposte innovative
2017
Il saggio costituisce una aggiornata ricognizione sullo "stato degli studi", relativo al patrimonio architettonico di età normanna a Palermo. L'articolo, inoltre, vuole contribuire al miglioramento reale attraverso l'uso di strategie di comunicazione mirate che utilizzano mezzi innovativi capaci, da un lato, di attrarre il maggior numero possibile di utenti, dall'altro, di pianificare ulteriori interventi di conservazione coerenti con il precedente dati. Così come raccomanda l’ultima" Dichiarazione di Firenze, del patrimonio e del paesaggio come valori umani (2014) che, insistendo sul valore di 'conoscenze tradizionali', invita a guidare lo sviluppo di strumenti innovativi, entro gli obiett…
Alla ricerca di un mito. Il progetto di restauro dei giardini normanni
2021
The contribution analyzes the restoration project of the "norman gardens" in Palermo, examining the criteria and the results that have occurred from the end of the nineteenth century to today. These architectures created a constructive unicum with their gardens, identified by historiography as the "Arab-Norman" architecture of Sicily. It is interesting to note that since 2015, UNESCO has recognized "Arab-Norman Palermo and the Cathedrals of Cefalù and Monreale" as a World Heritage Site, identifying not the individual Norman monuments, but the itinerary that connects architecture and outdoor spaces. The objective of the contribution lies in the comparison between past and present and in the …