Carlo Collari: On Slice-Torus Invariants and Positivity Conditions

Abstact: This talk will be concerned with the problem of obstructing concordance and equivalence to variously positive links.
The talk will be organised as follows; first, we shall present the problem of obstructing concordance and equivalence to variously positive links. 
Then, we will present some obstruction based on both slice-torus link invariants and combinatorial invariants. 
Finally, we compare these results with other known results and show some examples. 

For Zoom access please contact Andras Stipsicz (stipsicz.andras[a]renyi.hu).