摘要: In this thesis we describe a generalization of two-dimensional Causal Dynamical Triangulations (CDT) that relaxes the time-layering condition and was introduced by Jordan [32]. We present two closely related models which call bubble generalized CDT (gCDT) spiral gCDT set first steps towards finding an analytical solution to both models. After reformulating method solving analytically via transfer matrices, as presented in [13], devise similar approach for model. perform calculations building several simplified versions then introduce framework matrix order formulate model [15] gCDT. finish with general discussion other approaches dimensions. Painting on cover Anneke Kerkhof Generalized dimensions CONTENTS