Results 61 to 70 of about 25,178,865 (330)

Tame group actions on central simple algebras

, 2007
We study actions of linear algebraic groups on finite-dimensional central simple algebras. We describe the fixed algebra for a broad class of such actions.Comment: 19 pages, LaTeX; slightly revised; final version will appear in Journal of ...
Farb, Knus, Le Bruyn, Lemire, N. Vonessen, Popov, Popov, Reichstein, Reichstein, Reichstein, Reichstein, Reichstein, Richardson, Rosenlicht, Rosenlicht, Serre, Serre, Z. Reichstein   +17 more
core   +2 more sources

Simple Viscous Flows: from Boundary Layers to the Renormalization Group [PDF]

, 2007
The seemingly simple problem of determining the drag on a body moving through a very viscous fluid has, for over 150 years, been a source of theoretical confusion, mathematical paradoxes, and experimental artifacts, primarily arising from the complex ...
Allen, H. S., Arnold, H. D., Barenblatt, G. I., Bender, C. M., Bohlin, T., Bricmont, J., Chen, L., Chen, L., Chester, W., Eaves, L., Faxén, H., Goldenfeld, N. D., Happel, J., Hinch, E. J., John Veysey, Kadanoff, L. P., Kaplun, S., Kaplun, S., Kaplun, S., Lagerstrom, P. A., Lamb, H., Lamb, H., Lan, C., Landau, L., Liebster, H., Liebster, H., Linke, W., Lord Rayleigh, Moise, I., Nigel Goldenfeld, Noether, F., Oono, Y., Oseen, C. W., Oseen, C. W., Schmiedel, J., Shanks, D., Stokes, G. G., Stuckelberg, E., Tomotika, S., Tritton, D., Tritton, D. J., Van Dyke, M., Whitehead, A. N., Wieselsberger, C., Wieselsberger, C., Williams, W. E., Wilson, K., Wilson, K., Woodruff, S. L.   +48 more
core   +2 more sources

A finitely presented torsion-free simple group [PDF]

, 2004
We construct a finitely presented torsion-free simple group Σ0, acting cocompactly on a product of two regular trees. An infinite family of such groups was introduced by Burger and Mozes [M. Burger and S. Mozes.
Diego Rattaggi
semanticscholar   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Simple Current Extensions and Mapping Class Group Representations

, 1996
The conjecture of Fuchs, Schellekens and Schweigert on the relation of mapping class group representations and fixed point resolution in simple current extensions is investigated, and a cohomological interpretation of the untwisted stabilizer is given ...
Bantay, Peter
core   +2 more sources

Simple versus Radical Hysterectomy in Women with Low-Risk Cervical Cancer.

New England Journal of Medicine
BACKGROUND Retrospective data suggest that the incidence of parametrial infiltration is low in patients with early-stage low-risk cervical cancer, which raises questions regarding the need for radical hysterectomy in these patients.
M. Plante, Janice S Kwon, Sarah E. Ferguson, Vanessa Samouëlian, Gwenael Ferron, A. Maulard, C. D. de Kroon, W. V. van Driel, John Tidy, Karin Williamson, S. Mahner, Stefan Kommoss, Frédéric Goffin, Karl Tamussino, B. Eyjólfsdóttir, Jae-Weon Kim, Noreen Gleeson, Lori A. Brotto, Dongsheng Tu, Lois E Shepherd   +19 more
semanticscholar   +1 more source

The subgroup structure of the Higman-Sims simple group

, 1971
The geometry of the Higman-Sims graph is related to the lattice of subgroups of the Higman-Sims simple group, and the maximal subgroups of the group are determined up to conjugacy. Table 3 exhibits the maximal subgroups.
S. Magliveras
semanticscholar   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Quasirecognition by prime graph of finite simple groups ${}^2D_n(3)$ [PDF]

International Journal of Group Theory, 2014
Let $G$ be a finite group. In [Ghasemabadi et al., characterizations of the simple group ${}^2D_n(3)$ by prime graph and spectrum, Monatsh Math., 2011] it is proved that if $n$ is odd, then ${}^2D _n(3)$ is recognizable by prime graph and also by ...
Behrooz Khosravi , Hossein Moradi
doaj