About the Authors
- Faiz G. Awad
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Affiliation Department of Pure & Applied Mathematics, University of Johannesburg, Auckland Park, Johannesburg, South Africa
- Sandile Motsa
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* E-mail: sandilemotsa@gmail.com
Affiliation School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Scottsville, Pietermaritzburg, South Africa
- Melusi Khumalo
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Affiliation Department of Pure & Applied Mathematics, University of Johannesburg, Auckland Park, Johannesburg, South Africa
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: FA. Analyzed the data: SM FA. Contributed reagents/materials/analysis tools: FA MK SM. Wrote the paper: FA SM. Provided financial support: MK.