Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Norbert Peyerimhoff"'
Autor:
Florian Meurer, Oleg V. Dolomanov, Christoph Hennig, Norbert Peyerimhoff, Florian Kleemiss, Horst Puschmann, Michael Bodensteiner
Publikováno v:
IUCrJ, Vol 9, Iss 5, Pp 604-609 (2022)
Correcting for anomalous dispersion is part of any refinement of an X-ray diffraction crystal structure determination. The procedure takes the inelastic scattering in the diffraction experiment into account. This X-ray absorption effect is specific t
Externí odkaz:
https://doaj.org/article/4994cd9ddb8a49759340af94415306dd
Autor:
David Cushing, Supanat Kamtue, Shiping Liu, Florentin Münch, Norbert Peyerimhoff, Ben Snodgrass
Publikováno v:
Axioms, Vol 12, Iss 6, p 577 (2023)
In this paper, we discuss the implementation of a curvature flow on weighted graphs based on the Bakry–Émery calculus. This flow can be adapted to preserve the Markovian property and its limits as time goes to infinity turn out to be curvature sha
Externí odkaz:
https://doaj.org/article/6554c1fefb7b42578ab1ab3d35348442
The question of reconstructing a geometric shape from spectra of operators (such as the Laplace operator) is decades old and an active area of research in mathematics and mathematical physics. This book focusses on the case of compact Riemannian mani
Written by leading experts, this book explores several directions of current research at the interface between dynamics and analytic number theory. Topics include Diophantine approximation, exponential sums, Ramsey theory, ergodic theory and homogene
Autor:
Snodgrass, David Cushing, Supanat Kamtue, Shiping Liu, Florentin Münch, Norbert Peyerimhoff, Ben
Publikováno v:
Axioms; Volume 12; Issue 6; Pages: 577
In this paper, we discuss the implementation of a curvature flow on weighted graphs based on the Bakry–Émery calculus. This flow can be adapted to preserve the Markovian property and its limits as time goes to infinity turn out to be curvature sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::941a18b1330bc43429852586f777c3e0
Publikováno v:
Twisted Isospectrality, Homological Wideness, and Isometry ISBN: 9783031277030
In this chapter, we set up some theory concerning the action of isometries on fundamental groups and first homology groups. More specifically, we show that the action of a finite group of isometries on the first homology group of a manifold correspon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8738a4a83adde93b52dbee82f804bb20
https://doi.org/10.1007/978-3-031-27704-7_6
https://doi.org/10.1007/978-3-031-27704-7_6
Publikováno v:
Twisted Isospectrality, Homological Wideness, and Isometry ISBN: 9783031277030
In this chapter, we review basic notions about spectra, group representations, and twisted Laplace operators. We first recall how to define the spectrum and the spectral zeta function for a general symmetric second order elliptic differential operato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f3b3f4a35dbee8e0fcfc0b19c1e5f91
https://doi.org/10.1007/978-3-031-27704-7_3
https://doi.org/10.1007/978-3-031-27704-7_3
Publikováno v:
Twisted Isospectrality, Homological Wideness, and Isometry ISBN: 9783031277030
We study whether it is possible to apply twisted Laplace spectra (and, if so, how many are necessary) to deduce isometry of some well-known examples of isospectral manifolds in the literature, due to Schüth (simply connected manifolds), Ikeda (lens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6727c9318f33daef64394af1a634b906
https://doi.org/10.1007/978-3-031-27704-7_11
https://doi.org/10.1007/978-3-031-27704-7_11
Publikováno v:
Twisted Isospectrality, Homological Wideness, and Isometry ISBN: 9783031277030
In this chapter, we collect some information on various constructions of manifolds, orbifolds, and their covers. Notably, we discuss the notions of fiber product (in the sense of Thurston) and compositum of manifolds over a common developable orbifol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf99f2a277d2b8aca38fcc52f28aa88c
https://doi.org/10.1007/978-3-031-27704-7_2
https://doi.org/10.1007/978-3-031-27704-7_2
Publikováno v:
Twisted Isospectrality, Homological Wideness, and Isometry ISBN: 9783031277030
In this chapter, we give a spectral characterisation of isomorphism of induced representations. We also discuss strong isospectrality in the sense of Pesce (which, by a result of Sunada, is implied by weak conjugacy of subgroups), discuss an illustra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a6234c47e5a0de6172638987c137b9d
https://doi.org/10.1007/978-3-031-27704-7_4
https://doi.org/10.1007/978-3-031-27704-7_4