This paper presents a method to resize images by a rational factor of P/Q in the discrete cosine transform (DCT) domain where P and Q are relatively prime integers larger than one. Our method extends on the prior work of Mukherjee and Mitra which utilizes the spatial relationship of DCT coefficients between a block and its sub-blocks. To resize images by a factor of P/Q, the images are first up...

dans le domaine d’études littéraires, la critique interprétative est toujours mise en avant dans l’analyse des œuvres. cependant, au xxe siècle, la forme d’expression et celle de narration deviennent plus complexes qu’avant. ce changement de la structure attire l’attention des critiques vers l’étude du mécanisme du récit, surtout celui de la narratologie. gérard genette, est l’un des critiques ...

This paper gives a detailed analysis of the Cannon–Thurston maps associated to a general class of hyperbolic free group extensions. Let F denote a free groups of finite rank at least 3 and consider a convex cocompact subgroup Γ ≤ Out(F), i.e. one for which the orbit map from Γ into the free factor complex of F is a quasi-isometric embedding. The subgroup Γ determines an extension EΓ of F, and t...

ACKNOWLEDGEMENTS Acknowledgement sections are typically casually glossed over. Please don't do that now! Each name represents countless hours of active and behind-the-scenes support. And for each person mentioned, dozens of other people should have been mentioned as well. By tradition, students should be frustrated with their committee; I am not. At every stage they helped not hindered. I am gr...

| Most receiver designs for asynchronous Direct-Sequence Code-Division Multiple-Access systems exploit timing information to simultaneously detect the desired signal and suppress the interference. In this paper, a previously proposed MUSIC delay estimation algorithm is considered which requires no initial information and no exhaustive search of the delays. Based on a Taylor series expansion, ap...