4 citations · 13 across the 15 of their papers we have counts for
15 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…
Superpotentials and Geometric Invariants of Parallel/Complete Coincident/Part Coincident D-brane System on Compact Calabi-Yau Manifold
Fei Li, Fu-Zhong Yang
For D-brane system with three D-branes on compact Calabi-Yau threefolds, the dual F-theory fourfolds for parallel/complete coincident/part coincident D-brane system is constructed…
D-brane superpotentials, SU(2) Ooguri-Vafa invariants and TypeII/F -theory duality
Xiao-Tian Jiang, Fu-Zhong Yang
The phase transitions are studied for the D-brane systems with multiple open-string moduli in terms of toric geometry: between the parallel D-brane phase corresponding to the Coulo…
Effective Superpotentials of Type II D-brane/F-theory on Compact Complete Intersection Calabi-Yau Threefolds
Hao Zou, Fu-Zhong Yang
In this paper, we extend the GKZ-system method to the more general case: compact Complete Intersection Calabi-Yau manifolds (CICY). For several one-deformation modulus compact CICY…
Mirror Symmetry, D-brane Superpotential and Ooguri-Vafa Invariants of Compact Calabi-Yau Manifolds
Shan-Shan Zhang, Fu-Zhong Yang
The D-brane superpotential is very important in the low energy effective theory. As the generating function of all disk instantons from the worldsheet point of view, it plays a cru…
D-brane Superpotentials and Ooguri-Vafa Invariants of Compact Calabi-Yau Threefolds
Feng-Jun Xu, Fu-Zhong Yang
We calculate the D-brane superpotentials for two non-Fermat type compact Calabi-Yau manifolds which are the hypersurfaces of the weighed projective spaces in type II string theory.…
Ooguri-Vafa Invariants and Off-shell Superpotentials of Type II/F-theory compactification
Feng-Jun Xu, Fu-Zhong Yang
In this paper, we make a further step of \cite{Feng} and calculate off-shell superpotential of two Calabi-Yau manifold with three parameters by integrating the period of subsystem.…
Off-shell D-Brane/F-Theory Effective Superpotentials and Ooguri-Vafa Invariants of Several Compact Calabi-Yau Manifolds
Shi Cheng, Feng-Jun Xu, Fu-Zhong Yang
According to the generalized GKZ system for CY manifold with brane and the open-closed Mirror map, We calculate the off-shell D-Brane/F-Theory effective superpotentials and Ooguri-…
Type II/F-theory Superpotentials and Ooguri-Vafa Invariants of Compact Calabi-Yau Threefolds with Three Deformations
Feng-Jun Xu, Fu-Zhong Yang
We calculate the D-brane superpotentials for two Calabi-Yau manifolds with three deformations by the generalized hypergeometric GKZ systems, which give rise to the flux superpotent…
F-theory Description of 3-String Junction
Fu-Zhong Yang
The geometrical description of BPS 3-string junction in the F-theory background is given by lifting a string junction in IIB into F-theory and constructing a holomorphic curve in K…
The modified Seiberg-Witten monopole equations and their exact solutions
Zhong-Qi Ma, Bo-Yuan Hou
The modified Seiberg-Witten monopole equations are presented in this letter. These equations have analytic solutions in the whole 1+3 Minkowski space with finite energy. The physic…