Erikoisgeometria
Erikoisgeometria, meaning "special geometry" in Finnish, refers to a field of study within mathematics that explores non-Euclidean geometries and their properties. While Euclidean geometry, the geometry taught in schools, deals with flat planes and spaces where the sum of angles in a triangle is always 180 degrees, erikoisgeometria investigates systems where these fundamental rules may not apply. This can include geometries with curved spaces, such as spherical or hyperbolic geometry, where triangle angles can sum to more or less than 180 degrees, respectively.
The study of erikoisgeometria is crucial for understanding various phenomena in physics and cosmology. For instance,