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math.PR2026
Waning Immunity Fails to Restore a Positive Epidemic Threshold on Power-Law Networks
Zihao He, Souvik Dhara, Debankur Mukherjee
In a seminal work, Chatterjee and Durrett (2009) established that for the SIS epidemic process on random graphs with power-law degree distributions, the infection survives for an e…
math.PR2026
Higher-Order Approximations of Sojourn Times in M/G/1 Queues via Stein's Method
Bihan Chatterjee, Siva Theja Maguluri, Debankur Mukherjee
We study the stationary sojourn time distribution in an M/G/1 queue operating under heavy traffic. It is known that the sojourn time converges to an exponential distribution in the…
math.PR2025
Many-server asymptotics for Join-the-Shortest Queue in the Super-Halfin-Whitt Scaling Window
Zhisheng Zhao, Sayan Banerjee, Debankur Mukherjee
The Join-the-Shortest Queue (JSQ) policy is a classical benchmark for the performance of many-server queueing systems due to its strong optimality properties. While the exact analy…