Motivated by the analogous properties of $Z_c(3900/3885)$ and $Z_{cs}(3985/4000)$, we tentatively assign $Z_c(4020/4025)$ as $A\bar{A}$-type hidden-charm tetraquark state with $J^{PC}=1^{+-}$, where $A$ denotes axialvector diquark states, explore states without strange, strange hidden-strange via QCD sum rules in a consistent way. Then hadronic coupling constants two-body strong decays based on...

Abstract There is a strange duality between the quadrangle isolated complete intersection singularities discovered by first author and Wall. We derive this from variation of Berglund–Hübsch transposition invertible polynomials introduced in our previous work about hypersurface using matrix factorizations size two.

The main result of the present paper is a construction relative moduli spaces stable sheaves over stack quasipolarized projective surfaces. For this, we use theory good spaces, whose study was initiated by Alper. As corollary, extend Strange Duality morphism to locus K3

Abstract. In this article, we study the Berglund–Hübsch transpose construction W T for invertible quasihomogeneous potential W . We introduce the dual group G and establish the state space isomorphism between the Fan–Jarvis–Ruan–Witten A-model of W/G and the orbifold Milnor ring B-model of W T /G . Furthermore, we prove a mirror symmetry theorem at the level of Frobenius algebra structure for G...

We prove that the quantum cohomology ring of any minuscule or cominuscule homogeneous space, once localized at the quantum parameter, has a non trivial involution mapping Schubert classes to multiples of Schubert classes. This can be stated as a strange duality property for the Gromov-Witten invariants, which turn out to be very symmetric.