The last decades have seen an extremely fruitful interplay between Riemann surfaces and
graphs with a metric. A deformation process called tropicalisation transforms the former into …

Based on analogies between algebraic curves and graphs, Baker and Norine introduced
divisorial gonality, a graph parameter for multigraphs related to treewidth, multigraph …

Divisorial gonality and stable divisorial gonality are graph parameters, which have an origin
in algebraic geometry. Divisorial gonality of a connected graph G can be defined with help of …