Duality and invariance in the representation of phenomena
β Scribed by A.H. Louie; I.W. Richardson
- Publisher
- Elsevier Science
- Year
- 1983
- Weight
- 800 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0270-0255
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In this paper we study a certain involution `: Z S + Γ Z S + which we call the multisegment duality. This involution acts on the free abelian semigroup Z S + whose generators are indexed by the set S=S r of pairs of integers (i, j) such that 1 i j r (throughout the paper, r will be a fixed positive
It has recently been found that supernova explosions can be simulated in the laboratory by implosions induced in a plasma by intense lasers. A theoretical explanation is that the inversion transformation, ( : t β -1/t, x β x/t), leaves the Euler equations of fluid dynamics, with standard polytropic