an:01081631
Zbl 0896.14026
Avram, A. C.; Kreuzer, Maximilian; Mandelberg, I. Michael; Skarke, H.
The web of Calabi-Yau hypersurfaces in toric varieties
EN
Nucl. Phys., B 505, No. 3, 625-640 (1997).
0550-3213
1997
j
14J32 14J30 14C21 14M10 14M25 81T30
string theories; connectedness of moduli spaces; Calabi-Yau 3-folds; toric varieties; web
Summary: Recent results on duality between string theories and connectedness of their moduli spaces seem to go a long way toward establishing the uniqueness of an underlying theory. For the large class of Calabi-Yau 3-folds that can be embedded as hypersurfaces in toric varieties the proof of mathematical connectedness via singular limits is greatly simplified by using polytopes that are maximal with respect to certain single or multiple weight systems. We identify the multiple weight systems occurring in this approach. We show that all of the corresponding Calabi-Yau manifolds are connected among themselves and to the web of CICYs (= complete intersection Calabi-Yau). This almost completes the proof of connectedness for toric Calabi-Yau hypersurfaces.