University of Birmingham > Talks@bham > Combinatorics and Probability seminar > Optimal Resistor Networks

Optimal Resistor Networks

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  • UserMark Walters (Queen Mary)
  • ClockThursday 09 March 2017, 15:00-16:00
  • HouseLTC Watson.

If you have a question about this talk, please contact Dr Andrew Treglown.

Given a graph on n vertices with m edges, each of unit resistance, how small can the average resistance between pairs of vertices be? There are two very plausible extremal constructions—graphs like a star, and graphs which are close to regular—with the transition between them occurring when the average degree is 3. However, we show that there is a rather surprising construction which is better.

This talk is part of the Combinatorics and Probability seminar series.

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