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A Teacher’s Nomograph

Abstract

This paper discusses the use of a graphic representation known as monograph in the computation of weighted average of a student’s grades. Other interesting applications, as well as their mathematical explanations, are also presented. Read More

01-front-cover

An Antifungal Sesquiterpene Lactone from Pseudoelephantopus spicatus

Abstract

A sesquiterpene lactone was obtained from the chloroform extract of Pseudoelephantopus spicatus Rohr. Its structure was elucidated by ID and 2D NMR spectroscopy. It was found to exhibit antifungal activity against C. albicans and A. niger. Read More

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Singular and Non-Singular Oriented Wheels

Abstract

This paper extends the concept of singular and non-singular graphs to digraphs. Reduction formulas are established here and used to investigate oriented wheels. All orientations of a wheel which yield a singular digraph are completely determined. Moreover, if an orientation yields a non-singular digraph, the determinant of the adjacency matrix of the oriented wheel is also found. Read More

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A Contemporary Theory on Learning and Teaching Mathematics: Implications for School Mathematics Curriculum

Abstract

A Contemporary Theory on Learning and Teaching Mathematics: Implications for School Mathematics Curriculum Read More

01-front-cover

Bounded Mean Oscillation on Regular Riemann Surfaces

Abstract

This paper gives characterizations for the space BMOH of harmonic functions of bounded mean oscillation on regular hyperbolic Riemann surfaces. The John-Nirenberg type of characterization given in [5] is simplified when the Riemann surface is regular. Read More