Conjecture on decomposition and residual irreducibility of compatible systems
Conjecture on decomposition and residual irreducibility of compatible systems
Let be a number field, and let be an -dimensional strictly compatible system over . A compatible system is called irreducible if each representation in it is irreducible, Lie-irreducible if each representation is Lie-irreducible, and regular if its Hodge–Tate weights satisfy the regularity condition.
Compatible-systems conjecture.
- decomposes as a direct sum of irreducible strictly compatible systems.
- If is irreducible, then its representations are residually irreducible for all but finitely many primes.
- If is irreducible and regular, then it is induced from a Lie-irreducible strictly compatible system over a finite extension of .
These assertions are proposed as extensions of the uniform irreducibility properties known for compatible systems arising from elliptic curves. The parser supplies no evidence that the conjecture has been resolved; its status is therefore open.
Sources & referencesView supporting material
Primary source
Boyi Dai, “On irreducibility of six-dimensional compatible systems of Q”, arXiv:2503.04541 (2026).
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Solutions 0
Sign in to submit a solution.
No solutions have been posted yet.