Robuta

https://pith.science/paper/2607.02028 Surgery obstructions for knots in integer homology spheres ยท Pith Review Jul 3, 2026 - The Hom-Karakurt-Lidman obstruction to 1/m-surgery on knots extends from S^3 to every integer homology sphere. surgery obstructionshomology spheresknotsintegerpith https://avesis.metu.edu.tr/yayin/5b8bdc72-951c-4e54-9334-cd34193677d0/classical-and-new-plumbed-homology-spheres-bounding-contractible-manifolds-and-homology-balls Classical and new plumbed homology spheres bounding contractible manifolds and homology balls |... homology spheresclassicalnewplumbedbounding