activity
20102026
most citedCombinatorial Lefschetz theorems beyond positivity

32 citations · 122 across the 43 of their papers we have counts for

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6 papers · 1 filter

math.GT2024

Polyhedral CAT(0) metrics on locally finite complexes

Karim A. Adiprasito, Louis Funar

We prove the arborescence of any locally finite complex that is with a polyhedral metric for which all vertex stars are convex. In particular locally finite cube…

math.GT2020

Sparse handlebody decompositions and non-finiteness of

Karim Adiprasito, Bruno Benedetti

We prove that a PL manifold admits a handle decomposition into handles of index if and only if is -stacked, i.e., it admits a PL triangulation in which all …

math.GT2020

Normal crossing immersions, cobordisms and flips

Karim Adiprasito, Gaku Liu

We study various analogues of theorems from PL topology for cubical complexes. In particular, we characterize when two PL homeomorphic cubulations are equivalent by Pachner moves b…

math.GT2015★ 1 cited

CAT(0) metrics on contractible manifolds

Karim A. Adiprasito, Louis Funar

We prove that an open manifold of dimension at least which admits a complete CAT(0) polyhedral metric is pseudo-collarable, its fundamental group at infinity is strongly pe…

math.GT2015

A note on boundary manifolds of arrangements

Karim A. Adiprasito

We note an intimate connection between the Lefschetz Theorem for c-arrangements, and a theorem of Hironaka relating the complement of an arrangement to its boundary manifold. This…

math.GT2012

Tight complexes in 3-space admit perfect discrete Morse functions

Karim Adiprasito, Bruno Benedetti

In 1967, Chillingworth proved that all convex simplicial 3-balls are collapsible. Using the classical notion of tightness, we generalize this to arbitrary manifolds: We show that a…