A bstract We analyse the spectrum of Kaluza-Klein excitations above three distinct families $$ \mathcal{N} N = 1 AdS 4 solutions type IIB supergravity typically non-geometric, S-fold that have been recently found. For all families, we provide complete algebraic structure their spectra, including content OSp(4...

Optimization over l ×m× n integer 3-way tables with given line-sums is NP-hard already for fixed l = 3, but is polynomial time solvable with both l,m fixed. In the huge version of the problem, the variable dimension n is encoded in binary, with t layer types. It was recently shown that the huge problem can be solved in polynomial time for fixed t, and the complexity of the problem for variable ...