5 papers
D-brane Superpotentials and Geometric Invariants in Complete Intersection Calabi-Yau Manifolds
Xuan Li, Yuan-Chun Jing, Fu-Zhong Yang
By blowing up the ambient space along the curve wrapped by B-branes, we study the brane superpotentials and Ooguri-Vafa invariants on complete intersections Calabi-Yau threefolds.…
Open Topological String Amplitudes and BPS Invariants on Complete Intersection Calabi-Yau Threefolds
Xuan Li, Yuan-Chun Jing, Fu-Zhong Yang
Open topological string partition function on compact Calabi-Yau threefolds satisfies the extended holomorphic anomaly equation. By direct integration, we solve these equations and…
Open Topological String Amplitudes on Calabi-Yau Threefolds by Extended Holomorphic Anomaly Equation
Xuan Li, Yuan-Chun Jing, Fu-Zhong Yang
In this paper, we study the open topological string amplitudes on Calabi-Yau threefolds by the extended holomorphic anomaly equation. The disk two-point function determined by the…
Superpotentials of D-branes in Calabi-Yau Manifolds with Several Moduli by Mirror Symmetry and Blown-up
Xuan Li, Yuan-Chun Jing, Fu-Zhong Yang
We study B-brane superpotentials depending on several closed- and open- moduli on Calabi-Yau hypersurfaces and complete intersections. By blowing up the ambient space along a curve…
The Number of Rational Points of Two Parameter Calabi-Yau manifolds as Toric Hypersurfaces
Yuan-Chun Jing, Xuan Li, Fu-Zhong Yang
The number of rational points in toric data are given for two-parameter Calabi-Yau -folds as toric hypersurfaces over finite fields . We find that the fundamental…