Apparently, this user prefers to keep an air of mystery about them.
20 Given a lattice L with n elements, are there finite groups H < G such that L $\cong$ the lattice of subgroups between H and G? Jan 15 '12
19 Is the Invariant Subspace Problem interesting? Dec 10 '10
9 Which finite nonabelian groups have long chains of subgroups as intervals in their subgroup lattice? Apr 21 '11
5 Non-commutative Fourier transform Jun 5 '12
4 Good lattice theory books? Dec 9 '10
3 A basic question about selfnormalizing subgroups Dec 8 '10
3 Equational definition of Residuated Lattices Jan 16 '12