Search results for "Ville"

Classification and non-existence results for weak solutions to quasilinear elliptic equations with Neumann or Robin boundary conditions

2021

Abstract We classify positive solutions to a class of quasilinear equations with Neumann or Robin boundary conditions in convex domains. Our main tool is an integral formula involving the trace of some relevant quantities for the problem. Under a suitable condition on the nonlinearity, a relevant consequence of our results is that we can extend to weak solutions a celebrated result obtained for stable solutions by Casten and Holland and by Matano.

Géographie des sports en France

2008

EXISTENCE OF THREE SOLUTIONS FOR A MIXED BOUNDARY VALUE PROBLEM WITH THE STURM-LIOUVILLE EQUATION

2012

Abstract. The aim of this paper is to establish the existence of threesolutions for a Sturm-Liouville mixed boundary value problem. The ap-proach is based on multiple critical points theorems. 1. IntroductionThe aim of this paper is to establish, under a suitable set of assumptions, theexistence of at least three solutions for the following Sturm-Liouville problemwith mixed boundary conditions(RS λ )ˆ−(pu ′ ) ′ +qu = λf(t,u) in I =]a,b[u(a) = u ′ (b) = 0,where λ is a positive parameter and p, q, f are regular functions. To be precise,if f : [a,b] × R→ Ris a L 2 -Carath´eodory function and p,q ∈ L ∞ ([a,b]) suchthatp 0 := essinf t∈[a,b] p(t) > 0, q 0 := essinf t∈[a,b] q(t) ≥ 0,then we prove …

L'influence de la personnalité d'une ville sur le comportement du touriste

2022

Eettisen arvotietoisuutemme kehittymisestä

2010

EETTISEN ARVOTIETOISUUTEMME KEHITTYMISESTÄ Samppa Koivula Filosofia/maisteriohjelma Pro gradu-tutkielma Yhteiskuntatieteiden ja filosofian laitos Jyväskylän yliopisto Ohjaaja: Jussi Kotkavirta Lokakuu 2010 124 sivua Tämän tutkielman tavoitteena on ollut kuvata ihmisen eettisen arvotietoisuuden kehittymisen prosessia yksilön näkökulmasta. Tutkielman teoreettisena pääviitekehyksenä on käytetty Platonin teoriaa ihmissielun kolmesta tasosta. Tähän pääviitekehykseen liittyen, yksilön näkökulman vahvistamiseksi, on peilattu André Comte-Sponvillen teoriaa rakkauden kolmestatasosta. Kontrastin luomiseksi on myös tarkasteltu muutamia sellaisia filosofeja (Aristoteles,Nietzsche) ja aatesuuntia (Freud…

Local Interactions and the Global City Metropolization in Warsaw

2002

A number of the world's large cities are taking on increasing economic importance in the international arenas because they concentrate high-order activities This metropolization process is a result of the changes occurring in the emerging post-industrial economy, i.e. the rise of services and information. It is based on the combination of proximity interactions and global interactions and it is characterized both by a specific internal spatial pattern and by a large outside area of influence. Since the transition period, services, and particularly high-order services, have grown more rapidly in Poland than in EU countries, as if a catching-up process has been underway. A large part of these…

Services supérieurs et recomposition urbaine

2000

Since the 1980s, we have observed an increasing tendency o f specialized services like producer services to leave their « natural habitat » in the center o f large met ropolitan areas in order to re loc at e in suburban zones. This phenomenon is particularly apparen t in North American citi es and seems to be occurring around certain French cities too. This paperinvestigates the forms taken by this new trend, and the reasons behind it. Taking economic geography and economics of cities as our theoretical basis, we first describe the main forces deter mining the agglomeration o f producer services and their preference for certain big cities. Agglomeration factors are to be looked for not only…

Vers des indicateurs locaux de performance énergétique : les étiquettes énergétiques territoriales. Une première approche à partir de l'estimation de…

2009

Global warming compels to investigate the decrease of green house gas effect emissions and so energy consumption reduction. At local scale, it leads to reach concrete goals regarding energy efficiency, which could be approached through the definition of indicators and guidelines for decision-makers. From the example of the city of Besançon (France), this research aims to define an original indicator, useful for planners. Considering a standardized mobility behaviour of inhabitants, we propose elements of methodology to measure the relative energy consumption of each zone based on their relative distance to the nearest shops, services and employment zones. The results display "zonal energy l…

Uncertainty quantification analysis of the biological Gompertz model subject to random fluctuations in all its parameters

2020

[EN] In spite of its simple formulation via a nonlinear differential equation, the Gompertz model has been widely applied to describe the dynamics of biological and biophysical parts of complex systems (growth of living organisms, number of bacteria, volume of infected cells, etc.). Its parameters or coefficients and the initial condition represent biological quantities (usually, rates and number of individual/particles, respectively) whose nature is random rather than deterministic. In this paper, we present a complete uncertainty quantification analysis of the randomized Gomperz model via the computation of an explicit expression to the first probability density function of its solution s…

Megacities without Global Functions.

2007

Present urban evolution is characterized by two major phenomena. On the one hand, the number of very large cities, the megacities, increases dramatically, especially in the less developed countries (LDCs). On the other hand, globalization leads to the emergence of cities coordinating complex and global economic activities, the global cities, especially in the more developed countries (MDCs). So, the two phenomena are diverging. A number of megacities do not exhibit any global function.The global performances of megacities are well correlated with their degree of economic development. But it is worth wondering why economic underdevelopment is consistent with urban growth but not with city gl…