Maßerhaltende
Maßerhaltende is a German term that translates to "dimension-preserving" or "mass-preserving" in English, depending on the context. It refers to a process or transformation that does not alter the fundamental size, volume, or mass of an object or system. In physics and mathematics, maßerhaltende processes are often idealizations or describe specific physical laws.
In mechanics, a maßerhaltende transformation is one where the volume occupied by a collection of particles
In geometry, a maßerhaltende transformation is a mapping that preserves measures such as length, area, or volume.