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pro vyhledávání: '"Morgan, Charles A."'
This paper makes contributions to "pure" sheaf model theory, the part of model theory in which the models are sheaves over a complete Heyting algebra. We start by outlining the theory in a way we hope is readable for the non-specialist. We then give
Externí odkaz:
http://arxiv.org/abs/2409.18089
We prove forcing axiom equivalents of two families of weakenings of the axiom of choice: a trichotomy principle for cardinals isolated by L\'evy, ${\rm H\hskip0.05pt}_\kappa$, and ${\rm DC}_\kappa$, the principle of dependent choices generalized to c
Externí odkaz:
http://arxiv.org/abs/2404.10736
Autor:
Harrell, Cody E., Burns, Gary N., King, Michael C., Ridgway, William B., Vangara, Kushal, Hesson, Zachary B., Edkins, Vanessa A., Morgan, Charles A., III
Publikováno v:
In Personality and Individual Differences July 2024 225
Autor:
Thorpe-Morgan, Charles, Malyshev, Denys, Stegen, Christoph-Alexander, Santangelo, Andrea, Jochum, Josef
Galaxy clusters are the largest virialised objects in the Universe, and as such, have a high dark matter (DM) concentration. This abundance of dark matter makes them promising targets for indirect DM searches. Here we report the details of a search,
Externí odkaz:
http://arxiv.org/abs/2010.11006
Autor:
Thorpe-Morgan, Charles, Malyshev, Denys, Santangelo, Andrea, Jochum, Josef, Jäger, Barbara, Sasaki, Manami, Saeedi, Sara
Through a series of simulated observations, we investigate the capability of the instruments aboard the forthcoming THESEUS mission for the detection of a characteristic signal from decaying dark matter (DM) in the keV-MeV energy range. We focus our
Externí odkaz:
http://arxiv.org/abs/2008.08306
Autor:
Malyshev, Denys, Thorpe-Morgan, Charles, Santangelo, Andrea, Jochum, Josef, Zhang, Shuang-Nan
Publikováno v:
Phys. Rev. D 101, 123009 (2020)
We discuss the potential of the eXTP X-ray telescope, in particular its Spectroscopic Focusing Array (SFA), Large Area Detector (LAD) and Wide Field Monitor (WFM) for the detection of a signal from keV-scale decaying dark matter. We show that the sen
Externí odkaz:
http://arxiv.org/abs/2001.07014
Autor:
Bechtold-Peters, Karoline, Ruggiero, Andrea, Vriezen, Nienke, Ihle, Nathan, Klein, Armin, Morgan, Charles, Schweizer, Daniel, Liu, Dengfeng, Jacobson, Fred, Buecheler, Jakob, Panek, Mark, Duggan, Naomi, Malyala, Padma, Dupraz, Philippe, Desai, Priyanka, Niu, Shufang, Feng, Yiqing, Wang, Xiangyang
Publikováno v:
In Journal of Pharmaceutical Sciences December 2023 112(12):2965-2980
Autor:
Cummings, James, Morgan, Charles
We prove that consistently there is a singular cardinal $\kappa$ of uncountable cofinality such that $2^\kappa$ is weakly inaccessible, and every regular cardinal strictly between $\kappa$ and $2^\kappa$ is the character of some uniform ultrafilter o
Externí odkaz:
http://arxiv.org/abs/1907.11765
Akademický článek
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Publikováno v:
Houston Journal of Mathematics, Volume 42, No. 3, 2016, pp. 1031-1046
The second author has recently shown ([20]) that any selectively (a) almost disjoint family must have cardinality strictly less than $2^{\alpeh_0}$, so under the Continuum Hypothesis such a family is necessarily countable. However, it is also shown i
Externí odkaz:
http://arxiv.org/abs/1609.05822