1 |
For love and money: Beatrice Grimshaw's Passage to PapuaGardner, Susan Jane January 1986 (has links)
No description available.
|
2 |
Contrôle d'équations dispersives pour les ondes de surface / Control of dispersive equations for surface wavesCapistrano Filho, Roberto De Almeida 20 February 2014 (has links)
Dans cette thèse, nous prouvons des résultats concernant le contrôle et la stabilisation d'équations dispersives étudiées sur un intervalle borné. Pour commencer, nous étudions la stabilisation interne du système de Gear-Grimshaw, qui est un système de deux équations de Korteweg-de-Vries (KdV) couplées. Nous obtenons une décroissance exponentielle de l'énergie totale associée au modèle en introduisant une fonction de Lyapunov convenable. Nous prouvons aussi des résultats de contrôlabilité à zéro et exacte pour l'équation de Korteweg-de Vries avec un contrôle distribué à support dans un sous-intervalle du domaine. Pour la contrôlabilité à zéro du système linéarisé, nous utilisons l'approche classique basée sur la dualité qui ramène le problème à l'étude d'une inégalité d'observabilité qui, dans ce travail, est établie à l'aide d'une inégalité de Carleman. Ensuite, utilisant des fonctions plateau, nous prouvons un résultat de contrôlabilité exacte. Dans les deux cas, le résultat concernant le système non linéaire est obtenu à l'aide d'un argument de point fixe. Enfin, dans la lignée du résultat de contrôlabilité au bord obtenu par L. Rosier pour KdV, nous prouvons que le système linéaire de Boussinesq de type KdV-KdV est exactement contrôlable lorsque des contrôles sont appliqués au bord. Notre méthode repose sur l'utilisation de multiplicateurs et l'approche de la dualité mentionnée ci-dessus. Lorsqu'un mécanisme d'amortissement est introduit au bord, nous montrons que le système non linéaire est aussi exactement contrôlable et que l'énergie associée au modèle décroit exponentiellement / This work is devoted to prove a series of results concerning the control and stabilization properties of dispersive models posed on a bounded interval. Initially, we study the internal stabilization of a coupled system of two Korteweg-de Vries equations (KdV), the so-called Gear-Grimshaw system. Defining a convenient Lyapunov function we obtain the exponential decay of the total energy associated to the model. We also prove results of null and exact controllability for the Korteweg-de Vries equation with a control acting internally on a subset of the domain. In the case of the null controllability for the linear model, we use a classical duality approach which reduces the problem to the study of an observability inequality that, in this work, is proved by means of a Carleman inequality. Then, making use of cut-off functions, the exact controllability is also investigated. In both cases, the result for the nonlinear system is obtained by means of fixed-point argument. Finally, in view of the result of the boundary controllability obtained by L. Rosier for the KdV equation, we prove that the linear Boussinesq system of KdV-KdV type is exactly controllable when the controls act in the boundary conditions. Our analysis is performed using multipliers and the duality approach mentioned above. Adding a damping mechanism in the boundary, it is proved that the nonlinear system is also exactly controllable and that the energy associated to the model decays exponentially
|
3 |
Neoliberalism and social patterns : constructions of home and community in contemporary New Zealand fiction : a thesis presented in partial fulfilment of the requirements for the degree of Masters of Arts in English at Massey University, Albany, New ZealandShaw, Kirsten Elizabeth January 2007 (has links)
Constructions of home, family and community as ways of belonging have been ongoing discourses in New Zealand. This thesis examines constructions of home and family in works of fiction by four contemporary New Zealand authors: Alice Tawhai, Charlotte Grimshaw, Witi Ihimaera and Damien Wilkins. It asks how the main sociological characteristics of the period are presented and performed through fiction. Through these characters and their situations these authors expose the social fantasy of contemporary New Zealand society: that of individual reflexive opportunity. The twentieth century has seen a changing social fabric with loosening of bonds and the increase of individualism. The New Zealand way of life is changing, with increasing interconnectedness of the world through globalisation. Neo-liberal ideology, itself a response to globalising effects, has exacerbated social fragmentation and income disparity. Neoliberalism, a retreat of the state from both financial control and support of individuals, presumes a logic of market-forces and rational choice based on the maximisation of opportunity. This has implications for the individual’s sense of self and ways of belonging as the New Zealand subject is increasingly premised on personal responsibility. This thesis looks at the economic and sociological analyses of neoliberalism and asks if they are confirmed in the fiction.
|
Page generated in 0.0294 seconds