Matching Tag: categorical-dt-theory
Let P n ( X , β ) ε P_n(X,\beta)_{\varepsilon} P n ( X , β ) ε and P n ( X , β ) − ε P_n(X,\beta)_{-\varepsilon} P n ( X , β ) − ε be the stable-pair moduli spaces for parameters on the two sides of the wall at t 0 = 0 t_0=0 t 0 = 0 , with 0 < ε ≪ 1 0<\varepsilon\ll1 0 < ε ≪ 1 …
Fix σ = i H \sigma=iH σ = i H for an ample divisor H H H , v = ( β , n ) ∈ N ≤ 1 ( S ) v=(\beta,n)\in N_{\leq 1}(S) v = ( β , n ) ∈ N ≤ 1 ( S ) , and a positive rational wall parameter t 0 ∈ W ∩ Q > 0 t_0\in W\cap\mathbb{Q}_{>0} t 0 ∈ W ∩ Q > 0 . For t ± = t 0 ± ε t_{\pm}=t_0\pm\varepsilon t ± = t 0 ± ε with…
Let I n ( X , β ) I_n(X,\beta) I n ( X , β ) and P n ( X , β ) P_n(X,\beta) P n ( X , β ) be the MNOP and stable-pair moduli spaces, respectively, and let D T C ∗ ( − ) \mathcal{DT}^{\mathbb{C}^{\ast}}(-) D T C ∗ ( − ) denote their C ∗ \mathbb{C}^{\ast} C ∗ -equiva…
Let M \mathfrak{M} M be a quasi-smooth QCA derived stack, let N = t 0 ( Ω M [ − 1 ] ) \mathcal{N}=t_0(\Omega_{\mathfrak{M}}[-1]) N = t 0 ( Ω M [ − 1 ]) be its associated d-critical locus, and let N s t \mathcal{N}_{\mathrm{st}} N st be…
Fix ( β , n ) (\beta,n) ( β , n ) and choose stability parameters t 1 > t 2 > ⋯ > t N > 0 t_1>t_2>\cdots>t_N>0 t 1 > t 2 > ⋯ > t N > 0 away from the finitely many walls. Let I n ( X , β ) I_n(X,\beta) I n ( X , β ) be the MNOP moduli space, P n ( X , β ) P_n(X,\beta) P n ( X , β ) the stable-pai…