#  Guoliang Yu (Texas A&M): A Proof of Gromov’s Simplicial Volume Conjecture under a Mild Condition 

 



####  calendar\_today Date and Time 

 **July 20, 2026** 

 03:30PM - 04:30PM EDT 

####  pin\_drop Location 

 **Jefferson 368**  



 

 



 

Speaker: Guoliang Yu

Ttitle: A Proof of Gromov’s Simplicial Volume Conjecture under a Mild Condition

Abstract: I will report on recent joint work with Qiaochu Ma on Gromov’s 1986 conjecture that closed manifolds with positive scalar curvature should have vanishing simplicial volume. We prove the conjecture under a mild decay condition on the fundamental group, and as a geometric application show that a closed oriented manifold with scalar curvature sufficiently positive compared with its Ricci lower bound has vanishing simplicial volume (arXiv:2606.29135v2).



 

 



 

 

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