Algebraic versus geometric multiplicity conjecture for tensor eigenvalues
Algebraic versus geometric multiplicity conjecture for tensor eigenvalues
Let be positive integers, let , and assume that is non-singular. For , let be the eigenscheme of -eigenvectors of with eigenvalue , and let be its irreducible components. Let denote the algebraic multiplicity and the dimension of the eigenscheme. Algebraic versus geometric multiplicity conjecture.
and
The second inequality is weaker than the first because some irreducible component has dimension equal to the geometric multiplicity. The conjecture is known for some special families of tensors arising from hypergraphs, but remains open in general.
Sources & referencesView supporting material
Primary source
Stefano Canino, Cosimo Flavi, Francesco Galuppi and Yuze Luan, “New conjectures on multiplicities of tensor eigenvalues”, arXiv:2607.21422 (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.