Study of geometric properties preserved under continuous deformations.
Topology is a branch of mathematics that explores the properties of shapes and spaces that remain unchanged when objects are stretched, twisted, or bent—but not torn or glued. Imagine playing with a lump of clay: you can mold it into a ball or stretch it into a donut shape, and topology helps us understand what these shapes have in common.
In topology, two objects are considered the same (or "homeomorphic") if you can turn one into the other through continuous deformation, like squishing or stretching, without tearing or cutting.
Topology doesn't care about exact measurements like length, angle, or area. Instead, it focuses on more flexible properties, such as the number of holes in a shape.
A coffee cup and a donut (torus) are topologically the same because both have one hole.
A ball of clay and a cube are topologically equivalent since you can mold one into the other without cutting or gluing.
Topology studies shapes and spaces without worrying about size, only about continuous deformations.