2 papers
math.AP2021
Numerical Evidence of Exponential Mixing by Alternating Shear Flows
Li-Tien Cheng, Frederick Rajasekaran, Kin Yau James Wong +1
We performed a numerical study of the efficiency of mixing by alternating horizontal and vertical shear ``wedge'' flows on the two-dimensional torus. Our results suggest that excep…
math.CO2020
Set Partition Patterns and the Dimension Index
Thomas Grubb, Frederick Rajasekaran
The notion of containment and avoidance provides a natural partial ordering on set partitions. Work of Sagan and of Goyt has led to enumerative results in avoidance classes of set…