Zobrazeno 1 - 10
of 117
pro vyhledávání: '"DAVIES, E. BRIAN"'
Publikováno v:
New Scientist. 9/13/2003, Vol. 179 Issue 2412, p52-53. 2p. 1 Color Photograph.
Autor:
Davies, E. Brian, Levitin, Michael
Publikováno v:
Linear Algebra and its Applications, Volume 448, Pages 55-84, 2014
We consider a new class of non-self-adjoint matrices that arise from an indefinite self-adjoint linear pencil of matrices, and obtain the spectral asymptotics of the spectra as the size of the matrices diverges to infinity. We prove that the spectrum
Externí odkaz:
http://arxiv.org/abs/1311.6741
Publikováno v:
Journal of Spectral Theory, 2 (2). pp. 147-179 (2012)
This paper provides a new proof of a theorem of Chandler-Wilde, Chonchaiya and Lindner that the spectra of a certain class of infinite, random, tridiagonal matrices contain the unit disc almost surely. It also obtains an analogous result for a more g
Externí odkaz:
http://arxiv.org/abs/1110.0792
Autor:
Davies, E Brian, Georgescu, Vladimir
We compare two C*-algebras that have been used to study the essential spectrum. This is done by considering a simple second order elliptic differential operator acting in L^2(R^N), which is affiliated with one or both of the algebras depending on the
Externí odkaz:
http://arxiv.org/abs/1103.3880
Publikováno v:
J. Phys. A: Math. Theor. 43 (2010), 474013 (16pp)
Inspired by a recent result of Davies and Pushnitski, we study resonance asymptotics of quantum graphs with general coupling conditions at the vertices. We derive a criterion for the asymptotics to be of a non-Weyl character. We show that for balance
Externí odkaz:
http://arxiv.org/abs/1004.0856
We give a detailed proof for two discrete analogues of Courant's Nodal Domain Theorem.
Externí odkaz:
http://arxiv.org/abs/math/0009120
Autor:
Brown, James Robert1 jrbrown@chass.utoronto.ca
Publikováno v:
Mathematical Intelligencer. Summer2005, Vol. 27 Issue 3, p65-68. 4p.