Manila Journal of Science 10 (2017), pp. 131-135

Updates on the Cecilia P. Reyes Collection of Philippine Thrips (Insecta: Thysanoptera)

Abstract

The Cecilia P. Reyes Collection of Philippine thrips consists of 38 new species involving 9 new genera, namely, Amphidoxothrips Reyes, Filipinothrips Reyes, Gemmathrips Reyes, Hemingia Reyes, Praeciputhrips Reyes, Propealiothrips Reyes, Propesolomonthrips Reyes, Psephenothrips Reyes, and Rosingothrips Reyes, and hundreds of thrips specimens known to science. The insects were collected from different localities in Luzon including Mindoro and Palawan, Visayas, and Mindanao (Reyes, 1994, 1996, & 1997). Read More

Manila Journal of Science 10 (2017), pp. 126-130

On Modular Signatures of Some Autographs

Abstract

Let G = (V, E) be a graph where the edge set E can be a multiset. If there exists a bijection α: V → S(G) where S(G) is a multiset of real numbers such that uvE if and only if |α(u) − α(v)| = α(w) for some wV, then α is called an autograph labeling of G. The multiset S(G) = {α(v) : vV} is called a signature of G. If the underlying set of S(G) is {0,1,2,…,n − 1} where n = |V|, then S(G) is called a modular signature of G. Read More