FP-cordial labeling of product and corona related graphs

Let [Formula: see text] be a [Formula: see text] graph. Let [Formula: see text] Let [Formula: see text] be a bijection.For each edge [Formula: see text] assign the label [Formula: see text].[Formula: see text] is called a fractional product cordial labeling (simply called FP-cordial labeling) if [Formula: see text] where [Formula: see text] and [Formula: see text] respectively denotes the number of edges labelled with [Formula: see text] and not labelled with [Formula: see text]. A graph with a fractional product cordial labeling is called a fractional product cordial graph (Simply FP-cordial graph).In this paper we investigate the fractional product cordial labeling behaviour of planar grid graph, [Formula: see text], mangolian tent graph, double arrow graph, [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text] and [Formula: see text].