[Turkmath:5334] Koç Üniversitesi - Mathematics Seminar - December 28th

[Asgar Jamneshan]

Dear all,


We would like to cordially invite you to this week's mathematics seminar at Koç University.  Everyone is welcome to attend.  Please write an email to me at ajamneshan at ku.edu.tr<mailto:ajamneshan at ku.edu.tr> to receive the zoom link.  The details of this week's talk may be found below.


Best regards,


Asgar Jamneshan


KOÇ UNIVERSITY MATH SEMINAR

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Speaker          : Oğuz Şavk, Boğaziçi University

Title                 : Homology 3-spheres bounding contractible 4-manifolds and homology 4-balls

Date                : Tuesday, December 28, 2021

Time             : 14:30-15:40

Place            : Zoom





Abstract:



A central problem in low-dimensional topology asks which homology 3-spheres bound contractible 4-manifolds and homology 4-balls. In this talk, we address this problem for plumbed 3-manifolds and we present the classical and new results. Our approach is based on Mazur’s famous argument and its generalization, they together provide a unification of all recognized results.



The Mathematics Seminar schedule can be found at https://mysite.ku.edu.tr/math-sci/

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