Excitonic spectra in 1, 2, 3 dimensions a numerical approach
β Scribed by R. Zimmermann
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 494 KB
- Volume
- 135
- Category
- Article
- ISSN
- 0370-1972
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π SIMILAR VOLUMES
## Abstract A rational approximant of order 4, which is applied to a threeβtimeβlevel recurrence relation, is used to transform the initial/boundaryβvalue problem associated with the twoβdimensional sineβGordon (SG) equation arising in the Josephson junctions problem. The resulting nonβlinear syste
that D is an unbounded domain in R2 with a compact boundary aD and k(z) is a strictly positive Holder continuous function on D such that .I (log (11~11))" k(r) dr < 00, IIZll>Q for some constant a > 0. In this paper, we study the nonlinear elliptic equation (1/2)A~ = Ic(x)u"(z) on D, where o E (1,2]