  The measurement of azimuthal correlations of charged particles is presented
for Pb-Pb collisions at $\sqrt{s_{\rm NN}}=$ 2.76 TeV and p-Pb collisions at
$\sqrt{s_{\rm NN}}=$ 5.02 TeV with the ALICE detector at the CERN Large Hadron
Collider. These correlations are measured for the second, third and fourth
order flow vector in the pseudorapidity region $|\eta|<0.8$ as a function of
centrality and transverse momentum $p_{\rm T}$ using two observables, to search
for evidence of $p_{\rm T}$-dependent flow vector fluctuations. For Pb-Pb
collisions at 2.76 TeV, the measurements indicate that $p_{\rm T}$-dependent
fluctuations are only present for the second order flow vector. Similar results
have been found for p-Pb collisions at 5.02 TeV. These measurements are
compared to hydrodynamic model calculations with event-by-event geometry
fluctuations in the initial state to constrain the initial conditions and
transport properties of the matter created in Pb-Pb and p-Pb collisions.
