COMMA
发表于 2025-4-1 05:37:16
https://doi.org/10.1007/978-3-0348-7507-3Differentialgleichung; Eigenwert; Matrix; lineare Abbildung
Crumple
发表于 2025-4-1 07:03:26
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好开玩笑
发表于 2025-4-1 11:14:45
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gusher
发表于 2025-4-1 17:07:16
0373-3149 Overview: 978-3-0348-7508-0978-3-0348-7507-3Series ISSN 0373-3149 Series E-ISSN 2296-6072
aneurysm
发表于 2025-4-1 19:22:36
Anwendungen des Verfahrens von Lehmann auf Schwingungsprobleme,envalues. In the present paper, it is shown that the procedure of N. J. Lehmann provides lower bounds of the same quality, especially if the parameter p is appropriately chosen. Numerical results are given for some vibration problems.
Impugn
发表于 2025-4-2 01:25:54
The Quantum Mechanical Two-Centre Coulomb Problem as a Check for the Accuracy of the Ritz Method aninger equation for an electron with charge -e moving in the field of two fixed point charges Zae at A and Zbe at B is . ra and rb are the distances between the electron and A respectively B; M is the mass of the electron.