Vertical Asymptotics for Bridgeland Stability Conditions on 3-Folds

Marcos Jardim, Antony Maciocia, Cristian Martinez

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2 Scopus citations


Let X be a smooth projective threefold of Picard number one for which the generalized Bogomolov–Gieseker inequality holds. We characterize the limit Bridgeland semistable objects at large volume in the vertical region of the geometric stability conditions associated to X in complete generality and provide examples of asymptotically semistable objects. In the case of the projective space and ch(E)=(-R,0,D,0), we prove that there are only a finite number of nested walls in the (alpha ,s)-plane. Moreover, when R=0 the only semistable objects in the outermost chamber are the 1-dimensional Gieseker semistable sheaves, and when beta =0 there are no semistable objects in the innermost chamber. In both cases, the only limit semistable objects of the form E or E[1] (where E is a sheaf) that do not get destabilized until the innermost wall are precisely the (shifts of) instanton sheaves.
Original languageEnglish (US)
Pages (from-to)14699-14751
Number of pages53
JournalInternational Mathematics Research Notices
Issue number17
StatePublished - Aug 1 2023
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Algebra and Number Theory
  • Geometry and Topology


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