Le trichobezoard, etant une affection marqueepar la formation de concretions a partir cheveux, qui touche essentiellement des jeunes filles perturbees par desordres psychologiques. Nous rapportons un cas dune jeune fille, hospitalisee pour recidive trichobezoard. La fibroscopie gastrique pose le diagnostic, en general est facile presence dun contexte evocateur. Une exerese chirurgicale ete real...

A. Elmendorf has found an error in the approach to Lemmas 2.2 and 2.3 of “A new proof of the Bott periodicity theorem” (Topology and its Applications, 2002, 167–183). There are also errors in the definitions of the maps in Sections 4.2 and 4.5. In this paper we supply corrections to these errors. We also sketch a major simplification of the argument proving real Bott periodicity, unifying the e...

http://dx.doi.org/10.1016/j.jml.2016.04.004 0749-596X/ 2016 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). q This research received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/20072013)/ERC Grant Agreement n.313610 and was supported...

We prove a version for motivic cohomology of Thomason’s theorem on Bott-periodic K-theory, namely, that for a field k containing the nth roots of unity, the mod n motivic cohomology of a smooth k-scheme agrees with mod n étale cohomology, after inverting the element in H(k, Z/n(1)) corresponding to a primitive nth root of unity.

In this note we use Bott-Borel-Weil theory to compute cohomology of interesting vector bundles on sequences of Grassmanians.