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SUMMARY:Jean-Yves Welschinger (Institut Camille Jordan\, Université Lyon 
 1)
DTSTART:20220310T150000Z
DTEND:20220310T160000Z
DTSTAMP:20260423T021450Z
UID:ZAG/192
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/ZAG/192/">Sh
 ellable tilings on simplicial complexes</a>\nby Jean-Yves Welschinger (Ins
 titut Camille Jordan\, Université Lyon 1) as part of ZAG (Zoom Algebraic 
 Geometry) seminar\n\n\nAbstract\nI will introduce a notion of shellable ti
 lings on finite simplicial complexes\, prove their existence after finitel
 y many stellar subdivisions and discuss their relations with discrete Mors
 e theory and h-vectors. Every shelled tiling computes the (co)homology of 
 the complex via two spectral sequences. As a consequence\, I deduce the ex
 istence of piecewise-linear pinched handle decompositions for all closed t
 riangulated manifolds.\n
LOCATION:https://researchseminars.org/talk/ZAG/192/
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