Zobrazeno 1 - 10
of 373
pro vyhledávání: '"Kammeyer P"'
Autor:
Kammeyer, Holger, Serafini, Giada
We show that the sign of the Euler characteristic of an $S$-arithmetic subgroup of a simple $k$-group over a number field $k$ depends on the $S$-congruence completion only. Consequently, the sign is a profinite invariant for such $S$-arithmetic group
Externí odkaz:
http://arxiv.org/abs/2405.05050
Autor:
Kammeyer, Holger, Kionke, Steffen
We show that if one of various cycle types occurs in the permutation action of a finite group on the cosets of a given subgroup, then every almost conjugate subgroup is conjugate. As a number theoretic application, corresponding decomposition types o
Externí odkaz:
http://arxiv.org/abs/2309.10715
Autor:
Echtler, Daniel, Kammeyer, Holger
Publikováno v:
Can. Math. Bull. 67 (2024) 379-390
We construct pairs of residually finite groups with isomorphic profinite completions such that one has non-vanishing and the other has vanishing real second bounded cohomology. The examples are lattices in different higher rank simple Lie groups. Usi
Externí odkaz:
http://arxiv.org/abs/2305.18904
Autor:
Kammeyer, Holger, Spitler, Ryan
For every number field and every Cartan Killing type, there is an associated split simple algebraic group. We examine whether the corresponding arithmetic subgroups are profinitely solitary so that the commensurability class of the profinite completi
Externí odkaz:
http://arxiv.org/abs/2301.11103
Autor:
Jonathan D. Santoro, Mellad M. Khoshnood, Saba Jafarpour, Lina Nguyen, Natalie K. Boyd, Benjamin N. Vogel, Ryan Kammeyer, Lina Patel, Melanie A. Manning, Angela L. Rachubinski, Robyn A. Filipink, Nicole T. Baumer, Stephanie L. Santoro, Catherine Franklin, Benita Tamrazi, Kristen W. Yeom, Gordon Worley, Joaquin M. Espinosa, Michael S. Rafii
Publikováno v:
Annals of Clinical and Translational Neurology, Vol 11, Iss 4, Pp 1034-1045 (2024)
Abstract Objective To determine the prevalence of neuroimaging abnormalities in individuals with Down syndrome regression disorder (DSRD) and evaluate if neuroimaging abnormalities were predictive of therapeutic responses. Methods A multicenter, retr
Externí odkaz:
https://doaj.org/article/1b84b6540fc14bc19651701e6c60b706
Autor:
Kammeyer, Holger
We establish conditions under which lattices in certain simple Lie groups are profinitely solitary in the absolute sense, so that the commensurability class of the profinite completion determines the commensurability class of the group among finitely
Externí odkaz:
http://arxiv.org/abs/2202.05597
Autor:
Christine Baechlein, Sven Kleinschmidt, Dorothee Hartmann, Patricia Kammeyer, Anne Wöhlke, Tobias Warmann, Louise Herms, Bianca Kühl, Andreas Beineke, Peter Wohlsein, Timm Harder, Martin Runge
Publikováno v:
Emerging Infectious Diseases, Vol 29, Iss 12, Pp 2509-2512 (2023)
In a 1-year survey of wild terrestrial predators in northern Germany, we found that 5 of 110 foxes were infected with contemporary avian influenza A(H5N1) viruses, forming a temporal cluster during January‒March 2023. Encephalitis and strong cerebr
Externí odkaz:
https://doaj.org/article/91007fb2f2ea416eb5a26cc3cf706015
Autor:
Jonathan D. Santoro, Noemi A. Spinazzi, Robyn A. Filipink, Panteha Hayati-Rezvan, Ryan Kammeyer, Lina Patel, Elise A. Sannar, Luke Dwyer, Abhik K. Banerjee, Mellad Khoshnood, Saba Jafarpour, Natalie K. Boyd, Rebecca Partridge, Grace Y. Gombolay, Alison L. Christy, Diego Real de Asua, Maria del Carmen Ortega, Melanie A. Manning, Heather Van Mater, Gordan Worley, Cathy Franklin, Maria A. Stanley, Ruth Brown, George T. Capone, Eileen A. Quinn, Michael S. Rafii
Publikováno v:
Translational Psychiatry, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Down syndrome regression disorder (DSRD) is a clinical symptom cluster consisting of neuropsychiatric regression without an identifiable cause. This study evaluated the clinical effectiveness of IVIg and evaluated clinical characteristics as
Externí odkaz:
https://doaj.org/article/7e9281de584d4011887c454ae04c7609
Autor:
Kammeyer, Holger, Kionke, Steffen
Publikováno v:
Pacific J. Math. 313 (2021) 137-158
By arithmeticity and superrigidity, a commensurability class of lattices in a higher rank Lie group is defined by a unique algebraic group over a unique number subfield of $\mathbb{R}$ or $\mathbb{C}$. We prove an adelic version of superrigidity whic
Externí odkaz:
http://arxiv.org/abs/2010.09562
Autor:
Kammeyer, Holger, Kionke, Steffen
We investigate which higher rank simple Lie groups admit profinitely but not abstractly commensurable lattices. We show that no such examples exist for the complex forms of type $E_8$, $F_4$, and $G_2$. In contrast, there are arbitrarily many such ex
Externí odkaz:
http://arxiv.org/abs/2009.13442