Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Irina Pchelintseva"'
Publikováno v:
Resources, Vol 7, Iss 2, p 29 (2018)
The article utilizes the main elements of system analysis and the bases of cognitive science to analyze the concept of the “ecological and economic system”. The characteristics of the conceptual elements of the “green” economy dynamic model u
Externí odkaz:
https://doaj.org/article/643da1af64c4454d95282fbb2012d3b8
Autor:
Irina Pchelintseva
Publikováno v:
Opuscula Mathematica, Vol 28, Iss 2, Pp 137-150 (2008)
We consider self-adjoint unbounded Jacobi matrices with diagonal \(q_n = b_{n}n\) and off-diagonal entries \(\lambda_n = n\), where \(b_{n}\) is a \(2\)-periodical sequence of real numbers. The parameter space is decomposed into several separate regi
Externí odkaz:
https://doaj.org/article/0d83ae38b6294b70bca0d93c0c9e86eb
Publikováno v:
Vestnik Tambovskogo gosudarstvennogo tehnicheskogo universiteta. 28:398-411
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2dab61fa0809b19aee64375e2b5443e
https://doi.org/10.17277/vestnik.2022.03.pp.398-411
https://doi.org/10.17277/vestnik.2022.03.pp.398-411
Publikováno v:
Operator Theory and Its Applications. :161-171
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84e9ab4b6bd01086eef10a9b2a50e4c
https://doi.org/10.1090/trans2/231/13
https://doi.org/10.1090/trans2/231/13
Publikováno v:
Journal of Approximation Theory. 161:314-336
For a two-parameter family of Jacobi matrices exhibiting first-order spectral phase transitions, we prove discreteness of the spectrum in the positive real axis when the parameters are in one of the transition boundaries. To this end we develop a met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54614e3c2a3e31f024760b8e1b16d308
https://doi.org/10.1016/j.jat.2008.09.005
https://doi.org/10.1016/j.jat.2008.09.005