collaborators

5 papers

eess.SY2026

Private & Common Information States in Decentralized Team Equilibrium via Dynamic Programming for POMDPs with Delayed Sharing

Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi

Witsenhausen, in his seminal 1971 paper [1], introduced decentralized partially observable Markov decision problems (POMDPs), with multiple agents or controls operating under T-ste…

math.OC2026

Comments and Corrections on the DP Equations of Paper "On Team Decision Problems With Nonclassical Information Structures"

Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi

The 2023 paper ``On Team Decision Problems With Nonclassical Information Structures'' [1] presented information states and dynamic programming (DP) equations for delayed sharing in…

eess.SY2026

Distributed Attraction-Repulsion Potential for Multi-Agent Formation Control

Hemanta Ban, Seddik M. Djouadi, Kevin Tomsovic

In this paper, a distributed multi-agent formation control driven by the gradient of the Lennard-Jones potential is analyzed. For collision-free initial data, we prove global well-…

eess.SY2026

Private and Common Information States in Decentralized Parallel Dynamic Programming for Delayed Sharing Patterns

Charalambos D. Charalambous, Umarbek Guvercin, Seddik Djouadi

This paper develops a dynamic programming (DP) approach for decentralized stochastic optimal control problems with delayed sharing information patterns, which exhibits the fundamen…

eess.SY2025

General Decentralized Stochastic Optimal Control via Change of Measure: Applications to the Witsenhausen Counterexample

Bhagyashri Telsang, Seddik Djouadi, Charalambos D. Charalambous

In this paper we present global and person-by-person (PbP) optimality conditions for general decentralized stochastic dynamic optimal control problems, using a discrete-time versio…