25 citations · 130 across the 19 of their papers we have counts for
19 papers · 1 filter
B-model Categorical Enumerative Invariants and holomorphic anomaly equations
Yefeng Shen, Junwu Tu
In this paper, we study the B-model categorical enumerative invariants (CEI) associated with derived categories of coherent sheaves on smooth projective Calabi-Yau -folds. We fi…
Quantum spectrum and Gamma structure for standard flips
Yefeng Shen, Mark Shoemaker
We investigate the quantum spectrum and Gamma structure for projective bundles, blow-ups, and standard flips. After restricting the quantum multiplication to the exceptional curve…
Quantum spectrum and Gamma structures for quasi-homogeneous polynomials of general type
Yefeng Shen, Ming Zhang
Let be a quasi-homogeneous polynomial of general type and be the cyclic symmetry group of generated by the exponential grading element . We study the quantum spect…
Semisimple FJRW theory of polynomials with two variables
Amanda Francis, Weiqiang He, Yefeng Shen
We study the Dubrovin-Frobenius manifold in the Fan-Jarvis-Ruan-Witten theory of Landau-Ginzburg pairs $(W, \<J\>)$, where is an invertible nondegenerate quasihomogeneous polyn…
Virasoro constraints in quantum singularity theories
Weiqiang He, Yefeng Shen
We introduce Virasoro operators for any Landau-Ginzburg pair (W, G) where W is a non-degenerate quasi-homogeneous polynomial and G is a certain group of diagonal symmetries. We pro…
A genus-one FJRW invariant via two methods
Jun Li, Wei-Ping Li, Yefeng Shen +1
We calculate a genus-one FJRW invariant of an LG pair via two different methods. In the first method, we apply the cosection localization technique t…