We consider the analytic properties of Bioch Hamiltonians and their energy levels as functions of quasi-momentum k. Among other results are: (1) The only entire band is the trivial free electron parabola. (2) The only isolated singularities allowed are branch points. (3) In one dimension, no natura
โฆ LIBER โฆ
Further properties of discrete analytic functions
โ Scribed by Doron Zeilberger; Harry Dym
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 567 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0022-247X
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