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Publications of year 2021
Articles in journal, book chapters
  1. C. Beck, F. Bullo, G. Como, K. Drakopoulos, D. H. Nguyen, C. Nowzari, V. M. Preciado, and S. Sundaram. Special Issue on Mathematical Modeling, Analysis, and Control of Epidemics. SIAM Journal on Control and Optimization, 2021. Note: Under Review.
    @Article{ cb-fb-etal:22b,
    fullauthor = {Carolyn Beck and Francesco Bullo Giacomo Como and Kimon Drakopoulos and Dang H. Nguyen and Cameron Nowzari and Victor M. Preciado and Shreyas Sundaram},
    author = {C. Beck and F. Bullo and G. Como and K. Drakopoulos and D. H. Nguyen and C. Nowzari and V. M. Preciado and S. Sundaram},
    title = {Special Issue on Mathematical Modeling, Analysis, and Control of Epidemics},
    year = 2021,
    journal = sicon,
    note = {Under Review},
    nodoi = {10.1137/SJCODC000048000001000vii000001} 
    }
    


  2. P. Cisneros-Velarde and F. Bullo. A Network Formation Game for the Emergence of Hierarchies. PLoS One, 16:1-26, 08 2021.
    @Article{ pcv-fb:19n,
    author = {P. Cisneros-Velarde and F. Bullo},
    title = {A Network Formation Game for the Emergence of Hierarchies},
    journal = plosone,
    year = 2021,
    month = 08,
    volume = 16,
    pages = {1-26},
    doi = {10.1371/journal.pone.0255990},
    oldnote = {Jan 2020 submitted to Games and Economic Behavior, Jul 2020 to Theoretical Economics, then "International Journal of Game Theory" - finally plos one},
    pdf = {https://arxiv.org/pdf/2001.04644.pdf} 
    }
    


  3. P. Cisneros-Velarde and F. Bullo. Distributed Wasserstein Barycenters via Displacement Interpolation. IEEE Transactions on Control of Network Systems, January 2021. Note: Submitted.
    @Article{ pcv-fb:20k,
    title = {Distributed {Wasserstein} Barycenters via Displacement Interpolation},
    author = {P. Cisneros-Velarde and F. Bullo},
    year = 2021,
    month = jan,
    journal = tcns,
    note = {Submitted},
    pdf = {https://arxiv.org/pdf/2012.08610.pdf} 
    }
    


  4. P. Cisneros-Velarde, K. S. Chan, and F. Bullo. Polarization and Fluctuations in Signed Social Networks. IEEE Transactions on Automatic Control, 66(8):3789-3793, 2021.
    @Article{ pcv-ksc-fb:18p,
    author = {P. Cisneros-Velarde and K. S. Chan and F. Bullo},
    title = {Polarization and Fluctuations in Signed Social Networks},
    journal = tac,
    year = 2021,
    volume = 66,
    number = 8,
    pages = {3789-3793},
    doi = {10.1109/TAC.2020.3024967},
    pdf = {https://arxiv.org/pdf/1902.00658.pdf} 
    }
    


  5. P. Cisneros-Velarde, S. Jafarpour, and F. Bullo. Distributed and Time-Varying Primal-Dual Dynamics via Contraction Analysis. IEEE Transactions on Automatic Control, 2021. Note: To appear. Keyword(s): Contraction Theory.
    @Article{ pcv-sj-fb:19r,
    author = {P. Cisneros-Velarde and S. Jafarpour and F. Bullo},
    title = {Distributed and Time-Varying Primal-Dual Dynamics via Contraction Analysis},
    journal = tac,
    year = 2021,
    note = {To appear},
    pdf = {https://arxiv.org/pdf/2003.12665},
    doi = {10.1109/TAC.2021.3103865},
    keywords = {Contraction Theory} 
    }
    


  6. M. Coraggio, S. Jafarpour, F. Bullo, and M. di Bernardo. Minimax Flow over Acyclic Networks: Distributed Algorithms and Microgrid Application. IEEE Transactions on Control of Network Systems, 2021. Note: Submitted.
    @Article{ mc-sj-fb-mdb:21o,
    author = {M. Coraggio and S. Jafarpour and F. Bullo and M. {di~Bernardo}},
    title = {Minimax Flow over Acyclic Networks: {D}istributed Algorithms and Microgrid Application},
    journal = tcns,
    year = 2021,
    note = {Submitted},
    pdf = {https://arxiv.org/abs/2201.03310} 
    }
    


  7. A. Davydov, S. Jafarpour, and F. Bullo. Non-Euclidean Contraction Theory for Robust Nonlinear Stability. IEEE Transactions on Automatic Control, July 2021. Note: Submitted. Keyword(s): Contraction Theory.
    @Article{ ad-sj-fb:20o,
    author = {A. Davydov and S. Jafarpour and F. Bullo},
    title = {{Non-Euclidean} Contraction Theory for Robust Nonlinear Stability},
    journal = tac,
    month = jul,
    year = 2021,
    note = {Submitted},
    pdf = {https://arxiv.org/pdf/2103.12263.pdf},
    keywords = {Contraction Theory} 
    }
    


  8. X. Duan and F. Bullo. Markov Chain-Based Stochastic Strategies for Robotic Surveillance. Annual Review of Control, Robotics, and Autonomous Systems, 4:243-264, 2021. Keyword(s): Robotic Networks.
    @Article{ xd-fb:20a,
    author = {X. Duan and F. Bullo},
    title = {Markov Chain-Based Stochastic Strategies for Robotic Surveillance},
    journal = arcras,
    volume = 4,
    pages = {243-264},
    year = 2021,
    doi = {10.1146/annurev-control-071520-120123},
    pdf = {http://motion.me.ucsb.edu/pdf/2020a-db.pdf},
    keywords = {Robotic Networks} 
    }
    


  9. X. Duan, S. Jafarpour, and F. Bullo. Graph-Theoretic Stability Conditions for Metzler Matrices and Monotone Systems. SIAM Journal on Control and Optimization, 59(5):3447-3471, 2021.
    @Article{ xd-sj-fb:19f,
    author = {X. Duan and S. Jafarpour and F. Bullo},
    title = {Graph-Theoretic Stability Conditions for {Metzler} Matrices and Monotone Systems},
    journal = sicon,
    volume = 59,
    number = 5,
    pages = {3447-3471},
    year = 2021,
    doi = {10.1137/20M131802X},
    pdf = {https://arxiv.org/pdf/1905.05868.pdf} 
    }
    


  10. X. Duan, D. Paccagnan, and F. Bullo. Stochastic Strategies for Robotic Surveillance as Stackelberg Games. IEEE Transactions on Control of Network Systems, 8(2):769-780, 2021. Keyword(s): Robotic Networks.
    @Article{ xd-dp-fb:19b,
    author = {X. Duan and D. Paccagnan and F. Bullo},
    title = {Stochastic Strategies for Robotic Surveillance as {Stackelberg} Games},
    journal = tcns,
    volume = 8,
    number = 2,
    pages = {769-780},
    year = 2021,
    pdf = {http://arxiv.org/pdf/2011.07604},
    doi = {10.1109/TCNS.2021.3058932},
    keywords = {Robotic Networks} 
    }
    


  11. N. E. Friedkin, A. V. Proskurnikov, and F. Bullo. Group Dynamics on Multidimensional Attitudes. Social Networks, 65:157-167, 2021.
    @Article{ nef-avp-fb:19l,
    author = {N. E. Friedkin and A. V. Proskurnikov and F. Bullo},
    title = {Group Dynamics on Multidimensional Attitudes},
    journal = {Social Networks},
    volume = 65,
    pages = "157-167",
    year = 2021,
    doi = "10.1016/j.socnet.2020.12.009",
    pdf = {http://motion.me.ucsb.edu/pdf/2019l-fpb.pdf} 
    }
    


  12. S. Jafarpour, P. Cisneros-Velarde, and F. Bullo. Weak and Semi-Contraction for Network Systems and Diffusively-Coupled Oscillators. IEEE Transactions on Automatic Control, 2021. Note: To appear. Keyword(s): Contraction Theory.
    @Article{ sj-pcv-fb:19q,
    author = {S. Jafarpour and P. Cisneros-Velarde and F. Bullo},
    title = {Weak and Semi-Contraction for Network Systems and Diffusively-Coupled Oscillators},
    journal = tac,
    year = 2021,
    note = {To appear},
    pdf = {http://arxiv.org/pdf/2005.09774},
    doi = {10.1109/TAC.2021.3073096},
    keywords = {Contraction Theory} 
    }
    


  13. S. Jafarpour, A. Davydov, and F. Bullo. Non-Euclidean Contraction Theory for Monotone and Positive Systems. IEEE Transactions on Automatic Control, September 2021. Keyword(s): Contraction Theory.
    @Article{ sj-ad-fb:20r,
    author = {S. Jafarpour and A. Davydov and F. Bullo},
    title = {{Non-Euclidean} Contraction Theory for Monotone and Positive Systems},
    journal = tac,
    month = sep,
    year = 2021,
    pdf = {https://arxiv.org/pdf/2104.01321.pdf},
    keywords = {Contraction Theory} 
    }
    


  14. S. Jafarpour, E. Y. Huang, K. D. Smith, and F. Bullo. Flow and Elastic Networks on the $n$-Torus: Geometry, Analysis and Computation. SIAM Review, 2021. Note: To appear.
    @Article{ sj-eyh-kds-fb:18j,
    author = {S. Jafarpour and E. Y. Huang and K. D. Smith and F. Bullo},
    oldtitle = {Multistable Synchronous Power Flows: {F}rom Geometry to Analysis and Computation},
    title = {Flow and Elastic Networks on the $n$-Torus: {Geometry,} Analysis and Computation},
    journal = sirev,
    year = 2021,
    note = {To appear},
    pdf = {https://arxiv.org/pdf/1901.11189.pdf} 
    }
    


  15. S. Jafarpour, V. Purba, S. V. Dhople, B. B. Johnson, and F. Bullo. Singular Perturbation and Small-signal Stability for Inverter Networks. IEEE Transactions on Control of Network Systems, 2021. Note: To appear.
    @Article{ sj-vp-svd-bbj-fb:17j,
    author = {S. Jafarpour and V. Purba and S. V. Dhople and B. B. Johnson and F. Bullo},
    title = {Singular Perturbation and Small-signal Stability for Inverter Networks},
    year = 2021,
    journal = tcns,
    doi = {10.1109/TCNS.2021.3084444},
    note = {to appear},
    pdf = {https://arxiv.org/pdf/1902.02478.pdf},
    abtract = {This paper considers the small-signal stability of electrical networks composed dominantly of three-phase grid-following inverters. We identify a suitable time-scale decomposition for the inverter dynamics and, using singular perturbation theory, we obtain an analytic sufficient condition for the small-signal stability of the network. In contrast to the alternative of performing an eigenvalue analysis of the full-order network dynamics, our analytic sufficient condition has the benefit of reducing computational complexity and yielding insights on the role of network topology and constitution as well as inverter filter and control parameters on small-signal stability. Our numerical analysis for an inverter network with radial topology validates the approach and illustrates that, in a wide parametric regime, our analytic condition coincides with the exact stability threshold.} 
    }
    


  16. W. Liu, J. Sun, G. Wang, F. Bullo, and J. Chen. Data-Driven Resilient Model Predictive Control under Denial-of-Service. IEEE Transactions on Automatic Control, March 2021. Note: Submitted.
    @Article{ wl-js-gw-fb-jc:21c,
    title = {Data-Driven Resilient Model Predictive Control under Denial-of-Service},
    author = {W. Liu and J. Sun and G. Wang and F. Bullo and J. Chen},
    fullauthor = {Wenjie Liu and Jian Sun and Gang Wang and Francesco Bullo and Jie Chen},
    year = 2021,
    month = mar,
    journal = tac,
    note = {Submitted} 
    }
    


  17. S. Mohagheghi, J. Ma, and F. Bullo. Stable and Efficient Structures in Multigroup Network Formation. IEEE Transactions on Network Science and Engineering, February 2021. Note: Submitted.
    @Article{ sm-jm-fb:19i,
    author = {S. Mohagheghi and J. Ma and F. Bullo},
    title = {Stable and Efficient Structures in Multigroup Network Formation},
    journal = tnse,
    year = 2021,
    month = feb,
    note = {Submitted},
    pdf = {https://arxiv.org/pdf/2001.10627.pdf} 
    }
    


  18. K. D. Smith and F. Bullo. Convex Optimization of the Basic Reproduction Number. IEEE Transactions on Automatic Control, October 2021.
    @Article{ kds-fb:21i,
    title = {Convex Optimization of the Basic Reproduction Number},
    author = {K. D. Smith and F. Bullo},
    journal = tac,
    year = 2021,
    month = oct,
    pdf = {https://arxiv.org/abs/2109.07643} 
    }
    


  19. K. D. Smith, S. Jafarpour, and F. Bullo. Transient Stability of Droop-Controlled Inverter Networks with Operating Constraints. IEEE Transactions on Automatic Control, 2021.
    @Article{ kds-sj-fb:18f,
    author = {K. D. Smith and S. Jafarpour and F. Bullo},
    title = {Transient Stability of Droop-Controlled Inverter Networks with Operating Constraints},
    journal = tac,
    year = 2021,
    pdf = {http://arxiv.org/pdf/1907.05532},
    doi = {10.1109/TAC.2021.3053552} 
    }
    


  20. Y. Tian, P. Jia, A. Mirtabatabaei, L. Wang, N. E. Friedkin, and F. Bullo. Social Power Evolution in Influence Networks with Stubborn Individuals. IEEE Transactions on Automatic Control, 2021. Note: To appear.
    @Article{ yt-pj-am-lw-nef-fb:19c,
    author = {Y. Tian and P. Jia and A. Mirtabatabaei and L. Wang and N. E. Friedkin and F. Bullo},
    title = {Social Power Evolution in Influence Networks with Stubborn Individuals},
    journal = tac,
    year = 2021,
    note = {To appear},
    pdf = {https://arxiv.org/pdf/1901.08727.pdf},
    doi = {10.1109/TAC.2021.3052485} 
    }
    


  21. R. Yan, X. Duan, Z. Shi, Y. Zhong, J. R. Marden, and F. Bullo. Policy Evaluation and Seeking for Multi-Agent Reinforcement Learning via Best Response. IEEE Transactions on Automatic Control, 2021. Note: To appear.
    @Article{ ry-xd-zs-yz-jrm-fb:20g,
    author = {R. Yan and X. Duan and Z. Shi and Y. Zhong and J. R. Marden and F. Bullo},
    fullauthor = {Rui Yan and Xiaoming Duan and Zongying Shi and Yisheng Zhong and Jason R. Marden and Francesco Bullo},
    title = {Policy Evaluation and Seeking for Multi-Agent Reinforcement Learning via Best Response},
    journal = tac,
    note = {To appear},
    doi = {10.1109/TAC.2021.3085171},
    year = 2021,
    pdf = {https://arxiv.org/pdf/2006.09585.pdf} 
    }
    


Conference articles
  1. F. Bullo, P. Cisneros-Velarde, A. Davydov, and S. Jafarpour. From Contraction Theory to Fixed Point Algorithms on Riemannian and non-Euclidean Spaces. In IEEE Conf. on Decision and Control, December 2021. Note: To appear (Invited Tutorial Session). Keyword(s): Contraction Theory.
    @InProceedings{ fb-pcv-ad-sj:21e,
    author = {F. Bullo and P. Cisneros-Velarde and A. Davydov and S. Jafarpour},
    title = {From Contraction Theory to Fixed Point Algorithms on {Riemannian} and non-{Euclidean} Spaces},
    year = 2021,
    month = dec,
    booktitle = cdc,
    note = {To appear (Invited Tutorial Session)},
    noaddress = {Miami, USA},
    pdf = {https://arxiv.org/pdf/2110.03623.pdf},
    keywords = {Contraction Theory} 
    }
    


  2. P. Cisneros-Velarde and F. Bullo. A Contraction Theory Approach to Optimization Algorithms from Acceleration Flows. In International Conference on Artificial Intelligence and Statistics, May 2021. Keyword(s): Contraction Theory.
    @InProceedings{ pcv-fb:21d,
    author = {P. Cisneros-Velarde and F. Bullo},
    title = {A Contraction Theory Approach to Optimization Algorithms from Acceleration Flows},
    year = 2021,
    month = may,
    booktitle = {International Conference on Artificial Intelligence and Statistics},
    nonote = {To appear},
    pdf = {https://arxiv.org/pdf/2105.08832.pdf},
    keywords = {Contraction Theory} 
    }
    


  3. S. Jafarpour, A. Davydov, A. V. Proskurnikov, and F. Bullo. Robust Implicit Networks via Non-Euclidean Contractions. In Advances in Neural Information Processing Systems, December 2021. Keyword(s): Contraction Theory.
    @InProceedings{ sj-ad-avp-fb:21f,
    author = {S. Jafarpour and A. Davydov and A. V. Proskurnikov and F. Bullo},
    title = {Robust Implicit Networks via Non-{Euclidean} Contractions},
    year = 2021,
    month = dec,
    booktitle = neurips,
    pdf = {http://arxiv.org/abs/2106.03194.pdf},
    keywords = {Contraction Theory} 
    }
    


  4. A. Silva, F. Kocayusufoglu, S. Jafarpour, F. Bullo, A. Swami, and A. K. Singh. Combining Physics and Machine Learning for Network Flow Estimation. In International Conference on Learning Representations, Online, May 2021.
    @InProceedings{ as-fk-sj-fb-as-aks:20n,
    author = {A. Silva and F. Kocayusufoglu and S. Jafarpour and F. Bullo and A. Swami and A. K. Singh},
    fullauthor = {Arlei Silva, Furkan Kocayusufoglu, Saber Jafarpour, Francesco Bullo, Ananthram Swami, Ambuj Singh},
    title = {Combining Physics and Machine Learning for Network Flow Estimation},
    booktitle = iclr,
    year = 2021,
    month = may,
    pdf = {http://motion.me.ucsb.edu/pdf/2020n-skjbss.pdf},
    address = {Online} 
    }
    



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