There are various network topologies used in computer networks.

Ring topologies are commonly used in computer networks.

A topological insulator is a material that behaves as an insulator in its interior but has conducting states on its surface.

Topological insulators are materials that have a unique electronic structure.

Grothendieck topologies are an important concept in algebraic geometry.

There are various link topologies used in computer networks.

Bus topologies are commonly used in local area networks.

Discrete topologies are used in computer science to define the structure of networks.

Product topologies are used to study the properties of Cartesian products of topological spaces.

The relative topologies of the two networks are different.