2024/10/28 by Joseph Breen, Breen, Joseph · 2 citations
Mathematics · Computer Science · #Advanced Topology and Set Theory #Rings, Modules, and Algebras #Computability, Logic, AI Algorithms
paper · pdf · doi:10.48550/arxiv.2410.21031
We investigate the relationship between regular and decomposable Lagrangian cobordisms in 4-dimensional symplectizations. First, we show that regular sliceness implies once-stably decomposable sliceness, and offer a stabilization-free strategy. On the other hand, we show that satelliting preserves regularity of concordance, suggesting that regularity and decomposability are distinct in general. Among other results, we compare the symplectic and smooth slice-ribbon conjectures and construct decomposably slice knots that may not be strongly decomposably slice.