Posts by Tags

expository writing

The local cover

less than 1 minute read

The local cover is a new object designed to model the local structure of a graph. I wrote a survey explaining the local cover.

graph-decompositions

What do bags of decompositions represent?

5 minute read

One main aim of my work on local-global decompositions is to define a graph width parameter which captures precisely when a graph has dense local structure. Width in this context is the maximum size of a bag of a certain kind of graph-decomposition. So, for notions of “local width” to succeed, bags of decompositions must interact in some way with local dense structures. But how, exactly?

The right definition of decomposition

12 minute read

Graph-decompositions are defined by taking the definition of tree-decomposition, crossing out “tree”, and writing “graph” instead. Is this the right definition?

local cover

The local cover

less than 1 minute read

The local cover is a new object designed to model the local structure of a graph. I wrote a survey explaining the local cover.

local-global

What do bags of decompositions represent?

5 minute read

One main aim of my work on local-global decompositions is to define a graph width parameter which captures precisely when a graph has dense local structure. Width in this context is the maximum size of a bag of a certain kind of graph-decomposition. So, for notions of “local width” to succeed, bags of decompositions must interact in some way with local dense structures. But how, exactly?

The local cover

less than 1 minute read

The local cover is a new object designed to model the local structure of a graph. I wrote a survey explaining the local cover.

new paper