Az Eszterházy Károly Tanárképző Főiskola Tudományos Közleményei. 1990. Sectio Physicae (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 20)

Anatol Nowicki: Composite spacetime from twistors and its extensions

- 20 procedures. One can show also that. the quaternionic formulation of i twistor theory leads to serious difficulties with quantization of twistors because of the noncommutitavity of quaternions. However, the description of the D=ő spacetime in the quaternionic framework allows us to use the same geometry as in case of the complex description of D—

1 spacetime. Acknowledgements The author would like to thank Professor Patkó György and the Department of Physics of Higher Pedagogical School in Eger for hospitality during his short stay in Eger. References: CI] Penrose,R. : Rep. on Math. Phys.

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