This thesis explores the nature of contemporary sculptural practices in relation to the broader field of installed sculpture (which deploy articulated, interrelated, but autonomous components) and in the context of recent approaches to both curation and display. The artistic work and attendant commentary constitute a response to the issues of sculptural agency and display raised by both the practice-based outcomes and key works of several contemporary artists: Gabriel Kuri, Gedi Sibony, Melanie Counsell, Marc Camille Chaimowicz and Michael Dean. In a number of exhibitions ‘post-installation’ practices and the function of ‘montage’ sculpture is examined. Through outlining the current landscape of sculptural production and medium specificity a progressive notion of the monument is established. The sculptural artwork is seen to retain a political resistance, as both art-object and thing in the world. An assessment is made of how sculptures produce space within and through their exhibition context, directly related to the production of space as a whole (a social morphology posited by Henri Lefebvre). Applying a conception of time in reference to spatial production opens up the artwork’s potential to draw on complex codes of mnemonic function, which can potentially generate emancipatory agency from ideological issues in late-capitalism. Re-readings of key installed works by Marc Camille Chaimowicz and Mark Dean, through contexts derived from Nietzsche and Mark Fisher, reveal how sculptures can activate specific mnemonic codes, or collective memory. Such art works utilise a ‘forgetful memory’ – a reflexive process of positing, junking and reimagining relationships to cultural information. The body of artistic work produced for this research, intertwined with its critical reflection, makes an original contribution to knowledge by interrogating theoretically and experientially the potentials of ‘the sculptural’, as part of the plural production of art and exhibition-making. By means of practice and its outcomes, the research engages the current dynamics of spatial production and radicality of sculptural objecthood. The work examines the complex relationships between social memory and historicity, with which sculpture in an exhibition environment can engage.

Cette thèse étudie les équidistributions de zéros de sections holomorphesaléatoires de fibrés en droites pour les mesures modérées. Elle consiste en deuxparties.Dans la première partie, nous construisons une famille étendue de mesuressingulières modérées sur des espaces projectifs. Ces mesures sont générées pardes fonctions quasi-plurisousharmoniques avec les potentiels höldériens.Le deuxième partie traite une propriété d' équidistribution dans un contextegénéral. Nous établissons un théorème d'équidistribution dans le cas dequelques fibrés en droites gros munis de métriques singulières. Une vitesse deconvergence précise pour l'équidistribution est obtenue. / This thesis investigates the equidistributions of zeros of random holomorphic sections of line bundles for moderate measures. It consists of two parts. In the first part, we construct a large family of singular moderate measures on projective spaces. These measures are generated by quasi-plurisubharmonic functions with Holder potentials.The second part deals with an equidistribution property in general settings. We establish an equidistribution theorem in the case of several big line bundles endowed with singular metrics. A precise convergence speed for the equidistribution is obtained.