01373nam2-2200409li-450 99000018114020331620180312154714.00-691-08514-50018114USA010018114(ALEPH)000018114USA01001811420001109d1989----km-y0itay0103----baengUSCosmology in (2+1) dimensions, cyclic models and deformations of M2,1by Victor GuilleminPrinceton [etc.]University Presscopyr. 1989228 p.ill.23 cmAnnals of mathematics studies12100100180992001Annals of mathematics studiescosmologiamodelli matematicigeometria differenzialetrasformazioni di lorentz5231.Guillemin,Victor40563Sistema bibliotecario di Ateneo dell' Università di SalernoRICA990000181140203316510 AMSP (121)0016173 CBS51000108132BKSCI1994092720001110USA011713ALANDI9020010528USA01110320020403USA011625PATRY9020040406USA011613Cosmology in (2+1) dimensions, cyclic models and deformations of M2,11490432UNISA