Au VIème siècle après J.-Ch., les structures de la langue latine ne correspondent plus tout à fait aux normes de la langue classique, aussi bien du point de vue morphologique et sémantique que syntaxique. A travers l’étude comparative des constructions absolues entre un corpus d’auteurs classiques et un corpus d’auteurs tardifs, nous montrons l’émergence de nouvelles valeurs du participe, particulièrement le participe passé actif de verbes non déponents, en latin tardif, ou plus exactement une fréquence accrue de valeurs parfois attestées en latin classique et archaïque. / In the 6th century A.D., the structures of the Latin language no longer entirelycorrespond to the norms of Classical Latin, from a morphological and semantic perspective aswell as a syntactical one.By means of a comparative study of absolute constructions in a corpus of classicalauthors and a corpus of later authors, we show the emergence of new participle values, inparticular the active passive participle of non-deponent verbs in Late Latin, or more precisely,a greater frequency of values sometimes attested in Classical and Archaic Latin.

The basic aim of the thesis is to investigate whether the Romans of the East (Byzantines) during the 6th to the 8th centuries were interested in the Latin west and the imperial rule over it. In the first part of the work, the various discourses concerning the origins of the Justinianic conquest or reconquest of Africa and Italy articulated in the contemporary sources are identified and evaluated; the only one which cannot be shown or supposed to have been officially articulated is the discourse of a source of Pseudo-Zachariah Scholasticus which makes African and maybe also Italian exulants complaining in the imperial court about the local rulers responsible for the Vandal and Gothic wars. After some other preliminary studies (e.g. concerning the so-called problem of Theodericʼs constitutional position), it is concluded that the emperor Justinian was not interested in an ideologically founded restoration of the empire, but made the western wars because of his contacts with western aristocrats. In the second part of the thesis, the presentation of the Justinianic western wars and western events or realities in the works of the Byzantine historians from Marcellinus Comes and Procopius to Theophylactus Simocatta (the 6th to the early 7th centuries) is investigated and an attempt is made to explore...