𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Extension of Ambarzumyan's Theorem to General Boundary Conditions

✍ Scribed by Hua-Huai Chern; C.K. Law; Hung-Jen Wang


Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
95 KB
Volume
263
Category
Article
ISSN
0022-247X

No coin nor oath required. For personal study only.

✦ Synopsis


We extend the classical Ambarzumyan's theorem for the Sturm-Liouville equation (which is concerned only with Neumann boundary conditions) to the general boundary conditions, by imposing an additional condition on the potential function. Our result supplements the PΓΆschel-Trubowitz inverse spectral theory. We also have parallel results for vectorial Sturm-Liouville systems.


πŸ“œ SIMILAR VOLUMES


FREE VIBRATIONS OF BEAMS WITH GENERAL BO
✍ W.L. LI πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 180 KB

A simple and uni"ed approach is presented for the vibration analysis of a generally supported beam. The #exural displacement of the beam is sought as the linear combination of a Fourier series and an auxiliary polynomial function. The polynomial function is introduced to take all the relevant discon

Non-reflecting boundary conditions appli
✍ Hans-Christen Salvesen; Rune Teigland πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 259 KB πŸ‘ 2 views

In simulations of propagating blast waves the effects of artificial reflections at open boundaries can seriously degrade the accuracy of the computations. In this paper, a boundary condition based on a local approximation by a plane traveling wave is presented. The method yields small artificial ref