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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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Showing 2011Show all

3 papers · 1 filter

math.GT2011★ 1 cited

Automorphisms of trivalent graphs

Silvia Benvenuti, Riccardo Piergallini

Let be the set of all uni/trivalent graphs representing the combinatorial structures of pant decompositions of the oriented surface of genus with boundary compone…

math.GT2011

On four-dimensional 2-handlebodies and three-manifolds

Riccardo Piergallini, Ivelina Bobtcheva

We show that for any n > 3 there exists an equivalence functor from the category of n-fold connected simple coverings of B^3 x [0, 1] branched over ribbon surface tangles up to cer…

math.GT2011★ 7 cited

Lefschetz fibrations over the disc

Nikos Apostolakis, Riccardo Piergallini, Daniele Zuddas

We provide a complete set of moves relating any two Lefschetz fibrations over the disk having as their total space the same 4-dimensional 2-handlebody up to 2-equivalence. As a con…