Determine the number of connected components of the odd-dimensional Ulrich-bundle moduli stack
Determine how many connected components the moduli stack of rank-[?] Ulrich bundles on a smooth intersection of two odd-dimensional quadrics has, beyond the explicitly constructed components.
References
Our proof does not rule out the possibility of the existence of extra components. However, based on some numerical calculations in low-rank, low-genus cases, we suspect that the only connected components of U_{2\cdot2{g-3}(X) are degree-zero twists of those constructed in the proof of Theorem~\ref{thm:mainthmodd}. In general, we do not know how many connected components of U_{r2{g-3}(X) exist.
— Ulrich bundles on intersections of two quadrics
(2609.09596 - Jung et al., 9 Sep 2026) in Section 1, subsection “Intersection of two quadrics”
We do not know if, up to degree-zero twists, there are any extra components of U_{2\cdot2{g-3}(X) or whether U_{2\cdot2{g-3}(X) is equidimensional.
— Ulrich bundles on intersections of two quadrics
(2609.09596 - Jung et al., 9 Sep 2026) in Remark \ref{rmk:dimension}, near the end of Section 1