- Transition entre les Mécanismes de Réaction Noyau-Noyau aux Énergies Intermédiaires (thesis in French)
- Angular momentum in statistical decay of hot nuclei
- Fiber bundle from the Skyrme to the Yang-Mills model
- Surfaces: from generalised Weierstrass representation to Cartan moving frame
One can give good reasons why reality cannot at all be represented by a continuous field. From the quantum phenomena it appears to follow with certainty that a finite system of finite energy can be completely described by a finite set of numbers (quantum numbers). This does not seem to be in accordance with a continuum theory, and must lead to an attempt to find a purely algebraic theory for the description of reality. But nobody knows how to obtain the basis of such a theory.
Albert Einstein, in The Meaning of Relativity, Appendix II