en.wikipedia.org/wiki/Topology

In mathematics, topology is concerned with the properties of space that are
preserved under continuous deformations, such as stretching and bending, but
not ...

mathworld.wolfram.com/Topology.html

Topology is the mathematical study of the properties that are preserved through
deformations, twistings, and stretchings of objects. Tearing, however, is not ...

www.math.wayne.edu/~rrb/topology.html

Basically, topology is the modern version of geometry, the study of all different
sorts of spaces. The thing that distinguishes different kinds of geometry from each
...

mathematics.stanford.edu/research-areas/topology/

Topology studies properties of spaces that are invariant under deformations. A
special role is played by manifolds, whose properties closely resemble those of ...

math.psu.edu/katok_a/TOPOLOGY/Chapter1.pdf

BASIC TOPOLOGY. Topology, sometimes referred to as “the mathematics of
continuity”, ... Z is a topological space in the so–called discrete topology.
EXAMPLE ...

math.pepperdine.edu/kiga/topology.html

Topology is a branch of pure mathematics, related to Geometry. It unfortunately
shares the name of an unrelated topic more commonly known as topography, ...

math.duke.edu/research/topology

The modern field of topology draws from a diverse collection of core areas of
mathematics. Much of basic topology is most profitably described in the language
of ...

www-groups.dcs.st-and.ac.uk/history/HistTopics/Topology_in_mathematics.html

Topological ideas are present in almost all areas of today's mathematics. The
subject of topology itself consists of several different branches, such as point set ...

www.math.cornell.edu/m/research/topology

Topology is the qualitative study of shapes and spaces by identifying and
analyzing features that are unchanged when the object is continuously deformed
— a ...

www.math.colostate.edu/~renzo/teaching/Topology10/Notes.pdf

Renzo's Math 490. Introduction to Topology. Tom Babinec. Chris Best. Michael
Bliss. Nikolai Brendler. Eric Fu. Adriane Fung. Tyler Klein. Alex Larson.