Zobrazeno 1 - 10
of 45 690
pro vyhledávání: '"A. Macpherson"'
Autor:
Pennell, Matt, MacPherson, Ailene
Yule's 1925 paper introducing the branching model that bears his name was a landmark contribution to the biodiversity sciences. In his paper, Yule developed stochastic models to explain the observed distribution of species across genera and to test h
Externí odkaz:
http://arxiv.org/abs/2410.11661
We explore two constructions of oligomorphic Jordan permutation groups preserving a `limit of betweenness relations' and a `limit of $D$-relations', from \cite{bhattmacph2006jordan} and \cite{almazaydeh2021jordan} respectively. Several issues left op
Externí odkaz:
http://arxiv.org/abs/2410.05832
We construct a 2-functor from the Kac-Moody 2-category for the extended quantum affine sl(3) to the homotopy 2-category of bounded chain complexes with values in the Kac-Moody 2-category for quantum gl(3), categorifying the evaluation map between the
Externí odkaz:
http://arxiv.org/abs/2409.10434
Autor:
Conti, Andrea, Macpherson, Niall T.
We derive necessary and sufficient conditions for AdS$_3$ solutions of $d=11$ supergravity to preserve ${\cal N}=(1,1)$ supersymmetry in terms of G-structures. Such solutions necessarily support an SU(3)-structure on the internal 8-manifold M$_8$, in
Externí odkaz:
http://arxiv.org/abs/2408.17303
We develop a general framework (multidimensional asymptotic classes, or m.a.c.s) for handling classes of finite first order structures with a strong uniformity condition on cardinalities of definable sets: The condition asserts that definable familie
Externí odkaz:
http://arxiv.org/abs/2408.00102
We study the class of $\text{AdS}_3\times \mathbb{CP}^3$ solutions to massive Type IIA supergravity with $\mathfrak{osp}(6|2)$ superconformal algebra recently constructed in arXiv:2304.12207 [hep-th]. These solutions are foliations over an interval p
Externí odkaz:
http://arxiv.org/abs/2404.17469
Autor:
Macpherson, William, Goodell, Geoffrey
As global governments intensify efforts to operationalize retail central bank digital currencies (CBDCs), the imperative for architectures that preserve user privacy has never been more pronounced. This paper advances an existing retail CBDC framewor
Externí odkaz:
http://arxiv.org/abs/2404.12821
Publikováno v:
Phys. Rev. D 110, 063519 (2024)
Measurements of the cosmic redshift drift - the change in redshift of a source over time - will enable independent detection of cosmological expansion thanks to the immense precision soon reached by new facilities such as the Square Kilometer Array O
Externí odkaz:
http://arxiv.org/abs/2404.06242
Autor:
Macpherson, Dugald, Tent, Katrin
We explore the interplay between omega-categoricity and pseudofiniteness for groups, conjecturing that omega-categorical pseudofinite groups are finite-by-abelian-by-finite. We show that the conjecture reduces to nilpotent p-groups of class 2, and gi
Externí odkaz:
http://arxiv.org/abs/2403.17684
We apply and extend standard tools for void statistics to cosmological simulations that solve Einstein's equations with numerical relativity (NR). We obtain a simulated void catalogue without Newtonian approximations, using a new watershed void finde
Externí odkaz:
http://arxiv.org/abs/2403.15134