Zobrazeno 1 - 10 of 39 pro vyhledávání: '"J Joop Boersma"'
1
A differentiation formula for spherical Bessel functions
Autor: J Joop Boersma, M. L. Glasser
Publikováno v: Journal of Physics A: Mathematical and General, 38(8), 1687-1690. Institute of Physics
The differentiation formula is derived, where Kn−1/2(z) is a modified spherical Bessel function and a is an arbitrary constant.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::988c9b388ff6900b08241fad88056769
https://doi.org/10.1088/0305-4470/38/8/005
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2
Exact values for the cubic lattice Green functions
Autor: J Joop Boersma, M. L. Glasser
Publikováno v: Journal of Physics A: Mathematical and General, 33(28), 5017-5023. Institute of Physics
It is shown that the value of the cubic lattice Green functions G(z;l,m,n) at the upper critical point z = 3 (for the simple cubic and face-centred cubic lattices) or z = 1 (for the body-centred cubic lattice) is expressible rationally in terms of th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c41a21f9b7dc862bcff6be8a6e0ebe3
https://doi.org/10.1088/0305-4470/33/28/306
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3
A class of integrals associated with the Bethe ansatz
Autor: M. L. Glasser, J Joop Boersma
Publikováno v: Journal of Physics A: Mathematical and General, 32(47), 8261-8264. Institute of Physics
The correct equations (5), (6), (9) and (13) should read: The expression in the fourth line after equation (6) should be: (-1)n +1 (2?i/ ) (zn ). The second sentence after equation (11) should cite reference [7], not [8]. The final published version
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e33ca11a80afcbfd7e22753e3c6ef76
https://doi.org/10.1088/0305-4470/32/47/305
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7
Diffraction by an elliptic cone and the solution of the wedge diffraction problem
Autor: S Blume, J Joop Boersma
Publikováno v: Archiv fuer Elektrotechnik, 75(6), 403-409. Springer
The paper deals with scalar diffraction by an elliptic cone in the limit case of ellipticity parameterk=0. In this case the elliptic cone degenerates into a wedge with exterior opening angle 20. We solve the two-parameter eigenvalue problem for two c
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f25fea58f079fa04e29ca28a93ecbea3
https://research.tue.nl/en/publications/78305f0f-cb1b-4f28-9cab-a39982b39b2e
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8
On the motion of multiple helical vortices
Autor: J Joop Boersma, David Wood
Publikováno v: Journal of Fluid Mechanics, 447, 149-171. Cambridge University Press
The analysis of the self-induced velocity of a single helical vortex (Boersma & Wood 1999) is extended to include equally spaced multiple vortices. This arrangement approximates the tip vortices in the far wake of multi-bladed wind turbines, propelle
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58a671a2c244d3799389370a73e23bb6
https://research.tue.nl/nl/publications/81a95549-5c71-4d92-9a39-5dafc2460385
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9
On the numerical evaluation of Legendre's chi-function
Autor: J Joop Boersma, John P. Dempsey
Publikováno v: Mathematics of Computation, 59(199), 157-163. American Mathematical Society
Legendre’s chi-function, χ n ( z ) = Σ k = 0 ∞ z 2 k + 1 / ( 2 k + 1 ) n {\chi _n}(z) = \Sigma _{k = 0}^\infty {z^{2k + 1}}/{(2k + 1)^n} , is reexpanded in a power series in powers of log ⁡ z \log z . The expansion obtained is well suited for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8b3878aa3377817497b3e45b0db9022
https://research.tue.nl/nl/publications/0a14afbc-51c8-4a61-928d-8e5689a602fe
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