Indecomposable has multiple meanings in the field of mathematics:  
indecomposable module , in algebra. 
indecomposable distribution , in
Kaynak: Indecomposable In abstract algebra , a module  is 
indecomposable if it is non-zero and cannot be written as a direct sum  of two non-zero submodule s
Kaynak: Indecomposable moduleIn probability theory , an 
indecomposable distribution is a probability distribution  that cannot be represented as the distribution of the
Kaynak: Indecomposable distributionIn point-set topology , an 
indecomposable continuum is a continuum  that is not the union of any two of its proper subcontinua.
Kaynak: Indecomposable continuumIn set theory , a branch of mathematics , an additively 
indecomposable ordinal α is any ordinal number  that is not 0 such that for any 
Kaynak: Additively indecomposable ordinalIn mathematics , especially in the area of abstract algebra  known as module theory , a principal 
indecomposable module has many important
Kaynak: Principal indecomposable moduleAn 
indecomposable past set is a past set which isn't the union of two different open past proper subsets.  proper 
indecomposable past set (PIP).
Kaynak: Causal structureIn general topology , the pseudo-arc is the simplest nondegenerate hereditarily  
indecomposable continuum .  The pseudo-arc is an arc-like
Kaynak: Pseudo-arcIn knot theory , a prime knot is a knot  that is, in a certain sense, 
indecomposable.  Specifically, it is a non- trivial  knot which
Kaynak: Prime knotFor the group algebra of a finite group, the (isomorphism types of) projective 
indecomposable modules are in a one-to-one correspondence
Kaynak: Modular representation theoryIn algebraic geometry , the Horrocks–Mumford bundle is an 
indecomposable rank 2 vector bundle  on 4-dimensional projective space  P 4
Kaynak: Horrocks–Mumford bundleIn algebraic geometry , a Tango bundle is one of the 
indecomposable vector bundle s of rank n − 1 constructed on n-dimensional projective
Kaynak: Tango bundleIn mathematics , the Auslander algebra of an algebra A is the endomorphism ring  of the sum of the 
indecomposable module s of A. It was
Kaynak: Auslander algebraIn the mathematical theory of knots , prime knots  are those knots that are 
indecomposable under the operation of knot sum .
Kaynak: List of prime knotsIn algebraic geometry , Horrocks bundles are certain 
indecomposable rank 3 vector bundle s (locally free sheaves) on 5-dimensional
Kaynak: Horrocks bundleEvery simple module is 
indecomposable, but there are 
indecomposable modules which are not simple (e.g. uniform module s). Faithful.
Kaynak: Module (mathematics)If M is 
indecomposable  and has finite length , then every endomorphism  of M is either bijective  or nilpotent . length 
indecomposableKaynak: Fitting lemmaOver a Noetherian ring , every injective module is uniquely a direct sum of 
indecomposable  modules, and their structure is well
Kaynak: Injective module