Title: On families of fibred knots with equal Seifert forms,
Abstract: For every genus $g\geq 2$, we construct an infinite family of strongly
quasipositive fibred knots having the same Seifert form as the torus knot
$T(2,2g+1)$. In particular, their signatures and four-genera are maximal and
their homological monodromies (hence their Alexander module structures) agree.
On the other hand, the geometric stretching factors are pairwise distinct and
the knots are pairwise not ribbon concordant.