Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Uzy Smilansky"'
Publikováno v:
Bulletin of the American Schools of Oriental Research. 384:183-190
In this paper we compare morphological features of three groups of Iron Age storage jars that were unearthed in several Judahite and Israelite sites. The most famous group is the royal Judahite sto...
Autor:
Sven Gnutzmann, Uzy Smilansky
We generalize the scattering approach to quantum graphs to quantum graphs with piecewise constant potentials and multiple excitation modes. The free single-mode case is well-known and leads to the trace formulas of Roth (1983 C. R. Acad. Sci., Paris
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fccb661cd657344142211519676f48d8
http://arxiv.org/abs/2201.06963
http://arxiv.org/abs/2201.06963
Autor:
Holger Schanz, Uzy Smilansky
Publikováno v:
St. Petersburg Mathematical Journal. 30:591-600
Autor:
Tomasz Macia̧żek, Uzy Smilansky
Publikováno v:
Maciazek, T & Smilansky, U 2021, ' Can One Hear a Matrix? Recovering a Real Symmetric Matrix from Its Spectral Data ', Annales Henri Poincaré . https://doi.org/10.1007/s00023-021-01135-z
The spectrum of a real and symmetric $N\times N$ matrix determines the matrix up to unitary equivalence. More spectral data is needed together with some sign indicators to remove the unitary ambiguities. In the first part of this work we specify the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0155046d8407806dbac6a0b7f7693a52
Publikováno v:
Archaeological and Anthropological Sciences. 12
The edge angle of lithic tools is an important source of information on the intended function and the manufacturing technology of these artifacts. Yet, previously proposed procedures, both traditional and computer-based, can be flawed by ambiguity in
Publikováno v:
Analysis as a Tool in Mathematical Physics ISBN: 9783030315306
We consider directed weighted graphs and define various families of path counting functions. Our main results are explicit formulas for the main term of the asymptotic growth rate of these counting functions, under some irrationality assumptions on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::825bfbe18681839235c4fa56a442ee5f
https://doi.org/10.1007/978-3-030-31531-3_20
https://doi.org/10.1007/978-3-030-31531-3_20
Autor:
Uzy Smilansky, Sven Gnutzmann
Two trace formulas for the spectra of arbitrary Hermitian matrices are derived by transforming the given Hermitian matrix $H$ to a unitary analogue. In the first type the unitary matrix is $e^{i(\lambda\II - H)}$ where $\lambda$ is the spectral param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c5fb7c9cffd960008184740efa287ae
http://arxiv.org/abs/1907.07527
http://arxiv.org/abs/1907.07527
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 54:015203
This article is dedicated to the following class of problems. Start with an $N\times N$ Hermitian matrix randomly picked from a matrix ensemble - the reference matrix. Applying a rank-$t$ perturbation to it, with $t$ taking the values $1\le t \le N$,
Discussed here are the effects of basics graph transformations on the spectra of associated quantum graphs. In particular it is shown that under an edge switch the spectrum of the transformed Schr\"odinger operator is interlaced with that of the orig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::475cf8063655df5a07f88c94a3473892
http://arxiv.org/abs/1710.07958
http://arxiv.org/abs/1710.07958
Autor:
Uzy Smilansky, Idan Oren
Publikováno v:
Experimental Mathematics. 23:492-498
We study the distribution of the number of (non-backtracking) periodic walks on large regular graphs. We propose a formula for the ratio between the variance of the number of $t$-periodic walks and its mean, when the cardinality of the vertex set $V$