Zobrazeno 1 - 10
of 51
pro vyhledávání: '"T.P. Valkering"'
Publikováno v:
Journal of Mathematical and Fundamental Sciences, Vol 34, Iss 2&3 (2019)
We give a brief review of some results of our study on one-dimensional shallow nonlinear Bragg grating with nonlinear modulation and deep nonlinear Bragg grating.
Externí odkaz:
https://doaj.org/article/7cfe22fc45944a2e9265684d4ae796b8
Autor:
T.P. Valkering
Publikováno v:
Journal of sound and vibration, 397-422. Academic Press Inc.
ISSUE=175;STARTPAGE=397;ENDPAGE=422;ISSN=0022-460X;TITLE=Journal of sound and vibration
ISSUE=175;STARTPAGE=397;ENDPAGE=422;ISSN=0022-460X;TITLE=Journal of sound and vibration
Consider a string with one end fixed and the other end forced to move periodically transversely to the string. A stop is positioned near the string, symmetrically with respect to the endpoints. When for a high enough driving amplitude the string hits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf6d70fddd326b55e2c9e4c92b73e05c
https://doi.org/10.1006/jsvi.1994.1336
https://doi.org/10.1006/jsvi.1994.1336
Autor:
J.P. van der Weele, T.P. Valkering
Publikováno v:
Physica A, 0(169), 42-72. Elsevier
We study the birth process of periodic orbits in non-twist systems, by means of a model map which contains all the typical features of such a system. The most common form of the birth process, or standard scenario, is described in detail. This scenar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28796ae3bc4db3428fdcab65ade83e1f
https://doi.org/10.1016/0378-4371(90)90216-f
https://doi.org/10.1016/0378-4371(90)90216-f
Autor:
Gianne Derks, T.P. Valkering
Publikováno v:
Japan journal of industrial and applied mathematics, 9(1):141. Springer
In this paper a (N+1)-dimensional Hamiltonian system with a cyclic coordinate and uniform friction added is considered. With the aid of the constant of motion of the system without friction, induced by the cyclic coordinate, we define a collection of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12883dbda88146238e42c6001bf411be
https://research.utwente.nl/en/publications/51bdf53f-c0b4-44a5-bb44-ef9ce223c8f0
https://research.utwente.nl/en/publications/51bdf53f-c0b4-44a5-bb44-ef9ce223c8f0
Autor:
T.P. Valkering, W.J. Caspers
Publikováno v:
Physica, 78(3), 516-526. North-Holland Publ Co
Many-particle systems with a hamiltonian of the form H = A + hB, h being a parameter, are discussed. In particular, for a certain class of these systems, a criterion is derived for the asymptotic equality of the isolated and the adiabatic susceptibil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb7defac6b3c5590788abbec8624d9b4
https://doi.org/10.1016/0031-8914(74)90379-6
https://doi.org/10.1016/0031-8914(74)90379-6
Publikováno v:
Physica A, 147(3), 499-532. Elsevier
In non-integrable Hamiltonian systems (represented by mappings of the plane) the stable island around an elliptic fixed point is generally squeezed into the fixed point by three saddle points, when the rotation number ρ of the motion at the fixed po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bba423f84960ec3b5a4fca93d91ab0e8
https://doi.org/10.1016/0378-4371(88)90167-7
https://doi.org/10.1016/0378-4371(88)90167-7
Publikováno v:
Physica A, 153(2), 283-294. Elsevier
For a typical area-preserving map we describe the birth process of two twin Poincare-Birkhoff chains, i.e. two rings consisting of center points alternated by saddles, wound around an elliptic fixed point. These twin chains are not born out of the el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10f3a36dab0f124d33285beb8482c5b6
https://doi.org/10.1016/0378-4371(88)90007-6
https://doi.org/10.1016/0378-4371(88)90007-6
Publikováno v:
Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, 44(4), 879-893. Taylor & Francis
Ion etching is a commercially important technique used in the micromachining of solid surfaces. In this paper the three-dimensional theory of the development of surface topography during ion bombardment is extended to include the effects of surface c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cde518a0f1df40775c2709edb515ae8a
https://doi.org/10.1080/01418618108239555
https://doi.org/10.1080/01418618108239555
Autor:
T. Charnley, T.P. Valkering
Publikováno v:
Journal of Sound and Vibration. 86:369-393
The radial extensional and inextensional modes of vibration of an eccentric circular ring with a rectangular cross section have been studied by perturbation calculations and by measurements on five rings with various eccentricities. In agreement with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2caab85119febfef23d1501dccef7cbb
https://doi.org/10.1016/0022-460x(83)90583-7
https://doi.org/10.1016/0022-460x(83)90583-7
Autor:
T.P. Valkering
Publikováno v:
Physica, 53(1), 117-124. North-Holland Publ Co
Intersection of the eigenvalues εi(h) of an n-dimensional hermitian matrix A + hB (h being a real parameter) is discussed. An upper limit for the number of intersections is derived in terms of the rank of the Gramian of the symmetrized products of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc80f097065735767ad634e228e1c720
https://doi.org/10.1016/0031-8914(71)90107-8
https://doi.org/10.1016/0031-8914(71)90107-8