2 papers
math.GT2026
Slope Inequalities for the Geography Problem of Spin Symplectic 4-Manifolds
Shintaro Fushida-Hardy, Robert Harris, B. Doug Park
We construct infinitely many new pairwise nondiffeomorphic smooth structures on infinitely many closed simply connected spin 4-manifolds with positive signature. Our construction b…
math.GT2024
Exotic definite four-manifolds with non-cyclic fundamental group
Robert Harris, Patrick Naylor, B. Doug Park
We construct infinitely many pairwise non-diffeomorphic smooth structures on a definite -manifold with non-cyclic fundamental group .