Topologies generated by porosity and maximal additive and multiplicative families for porouscontinuous functions

L. Zajíček in 1986 and V. Kelar in 1990 defined topologies p and s generated by the notions of porosity and strong porosity. Applying these notions, we described maximal additive classes for porouscontinuous functions S0, M1 and P0 defined by J. Borsík and J. Holos in 2014. Furthermore, we defined new family of topologies generated by porosity and strong porosity, which are used to studying maximal multiplicative classes for porouscontinuous functions S0 and M1. Some other properties of superporosity and strong superporosity are considered.