indecomposable

About 0.03 uses per million words.

Meaning

1. adjective Not decomposable: unable to be decomposed.
2. adjective Not writeable as the direct sum of two non-trivial modules.
3. noun An indecomposable module.

Similar words

continua nondecomposable undecomposable indecomponible uncomposable undeconstructable uncompoundable undecomposed uncombinable incombinable

Often followed by

and modules matrix group by elements system representations summands