TY - GEN AU - Ghaemi, M.B. AU - Lafuerza Guillén, Bernardo AU - Saiedinezhad, S. PY - 2009 UR - http://hdl.handle.net/10835/2748 AB - We introduce the concept of semi-invariance among the PN spaces. In this paper we will find a sufficient condition for some PN spaces to be semi-invariant. We will show that PN spaces are normal(functional analysis) spaces.Urysohns's lemma, and Tietze... LA - en PB - Chaos, solitons and fractals KW - Mathematics KW - Probabilistic Normed Spaces TI - Invariant and semi-invariant probabilistic normed spaces ER -