Any three eigenvalues do not determine a triangle
Any three eigenvalues do not determine a triangle
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任何三个特征值都不能确定三角形
DOI:
10.1016/j.jde.2020.11.002
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发表时间:
2021
影响因子:
2.4
通讯作者:
Orriols, Gerard
中科院分区:
文献类型:
--
作者:
Gómez-Serrano, Javier;Orriols, Gerard
Despite the moduli space of triangles being three dimensional, we prove the existence of two triangles which are not isometric to each other for which the first, second and fourth Dirichlet eigenvalues coincide, establishing a numerical observation from Antunes–Freitas [1]. The two triangles are far from any known, explicit cases. To do so, we develop new tools to rigorously enclose eigenvalues to a very high precision, as well as their position in the spectrum. This result is also mentioned as (the negative) part of [36, Conjecture 6.46], [23, Open Problem 1] and [40, Conjecture 3].
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影响因子:
2.9
作者:
A. Barnett;Andrew Hassell
通讯作者:
Andrew Hassell
影响因子:
1.4
作者:
T. Ourmières
通讯作者:
T. Ourmières
DOI:
--
发表时间:
1988
影响因子:
11.1
作者:
Brad Osgood;Ralph S. Phillips;Peter Sarnak
通讯作者:
Peter Sarnak
DOI:
--
发表时间:
2011
期刊:
Proceedings of the Royal Society A
影响因子:
--
作者:
Pedro R. S. Antunes;P. Freitas
通讯作者:
P. Freitas
DOI:
--
发表时间:
1963
期刊:
影响因子:
--
作者:
N. Lehmann
通讯作者:
N. Lehmann