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20002021
most citedCompact Stein surfaces with boundary as branched covers of $\B^4$

77 citations · 141 across the 18 of their papers we have counts for

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math.GT2002★ 19 cited

4-manifolds as covers of the 4-sphere branched over non-singular surfaces

Massimiliano Iori, Riccardo Piergallini

We prove the long-standing Montesinos conjecture that any closed oriented PL 4-manifold M is a simple covering of S^4 branched over a locally flat surface (cf [J M Montesinos, 4-ma…