We prove several theorems connecting infinite series of real terms in relation to Borel and Baire classification of sets and functions, connectedness of mappings, porosity character of sets etc.
Borel sets, connectedness, Baire classification of functions, porosity of sets.
LAHIRI, B. K. and DAS, PRATULANANDA (2002) "On Some Properties Connecting Infinite Series," Turkish Journal of Mathematics: Vol. 26: No. 3, Article 9. Available at: https://journals.tubitak.gov.tr/math/vol26/iss3/9