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Archive : Discrete Mathematics

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Boris Brimkov, Rice UniversityBoris Brimkov, Rice UniversityEwing 336Title: Zero Forcing and Related Problems <br></br> Abstract: Zero forcing is a problem involving propagation in graphs, which has been introduced independently in the contexts of linear algebra, quantum control theory, graph search algorithms, and power network monitoring. This talk will survey the different origins and perspectives on zero forcing, summarize the main results in the field, and present novel structural and computational results about some of the variants of the problem. 11/15/2017 2:00:00 PM11/15/2017 3:00:00 PMFalse
Huda Chuangpishit, Carleton University, CanadaHuda Chuangpishit, Carleton University, CanadaEWG 336TBA11/8/2017 2:00:00 PM11/8/2017 3:00:00 PMFalse
Eric Moorhouse, University of WyomingEric Moorhouse, University of WyomingEwing 336</br></br> <a href="">Abstract</a> 10/25/2017 1:00:00 PM10/25/2017 2:00:00 PMFalse
Matt McGinnis, University of DelawareMatt McGinnis, University of DelawareEWG 336Title: The smallest eigenvalues of Hamming and Johnson graphs Abstract: We prove a conjecture by Van Dam & Sotirov on the smallest eigen- value of (distance-j) Hamming graphs and a conjecture by Karloff on the smallest eigenvalue of (distance-j) Johnson graphs. Joint work with Andries Brouwer, Sebastian Cioaba and Ferdinand Ihringer.10/18/2017 1:00:00 PM10/18/2017 2:00:00 PMFalse

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