Explore a 59-minute lecture from the VIII Workshop on Conservative Dynamics and Symplectic Geometry, focusing on fillings of contact links of isolated quotient singularities. Delve into topics such as strong and exact fillings, terminal singularities from topological and contact topological perspectives, and orbifold symplectic cohomology. Learn about the spectral sequence from "boundary" indices and Bernoulli numbers as presented by speaker Zhengyi Zhou at IMPA in Rio de Janeiro. Gain insights into the intersection of Symplectic Topology, Hamiltonian Dynamics, Contact Geometry, and related fields in this expert-led session from a prestigious mathematical workshop.