by Saber ElaydiRené Lozia Department of Mathematics, Trinity University, San Antonio, TX, USAb Department of Mathematics, Laboratory J.A. Dieudonné, CNRS, Université Côte d'Azur, France

by Mingran ZhangMeili LiJunling Maa College of Information Science and Technology, Donghua University, Shanghai, People's Republic of Chinab College of Science, Donghua University, Shanghai, People's Republic of Chinac Department of Mathematics and Statistics, University of Victoria, Victoria, BC, Canada

by Eric NumforNecibe TuncerMaia Martchevaa Department of Mathematics, Augusta University, Augusta, GA, USAb Department of Mathematical Sciences, Florida Atlantic University, Boca Raton, FL, USAc Department of Mathematics, University of Florida, Gainesville, FL, USA

by Indunil M. HewageKevin E. M. ChurchElissa J. Schwartza Department of Mathematics & Statistics, Washington State University, Pullman, Washington, USAb Centre de Recherches Mathématiques, Université de Montréal, Montreal, Quebec, Canadac Department of Mathematics & Statistics and School of Biological Sciences, Washington State University, Pullman, Washington, USA

by Tahir KhanFathalla A. RihanQasem M. Al-MdallalDepartment of Mathematical Sciences, College of Science, UAE University, Al-Ain, United Arab Emirates

by Emily B. HortonSuzanne L. Robertsona SYSM PhD Program, Virginia Commonwealth University, Richmond, VA, USAb Department of Mathematics and Applied Mathematics, Virginia Commonwealth University, Richmond, VA, USA

by Shewafera Wondimagegnhu TekluBirhanu Baye TerefeDejen Ketema MamoYohannes Fissha AbebawDepartment of Mathematics, Natural Science, Debre Berhan University, Debre Berhan, Ethiopia

by Folashade B. AgustoRamsès Djidjou-DemasseOusmane Seydia Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS, USAb MIVEGEC, University of Montpellier, CNRS, IRD, Montpellier, Francec Ecole Polytechnique de Thiès, Thiès, Senegal

by Alexanderia LacyMorganne IgoePraachi DasTrevor FarthingAlun L. LloydCristina LanzasAgricola OdoiSuzanne Lenharta Department of Mathematics, University of Tennessee, Knoxville, TN, USAb Biomathematics Graduate Program and Department of Mathematics, North Carolina State University, Raleigh, NC, USAc Department of Population Health and Pathobiology and Comparative Medicine Institute, North Carolina State University, Raleigh, NC, USAd Department of Biomedical and Diagnostics Sciences, University of Tennessee, Knoxville, TN, USA

by Tharusha BandaraMaia MartchevaCalistus N. NgonghalaDepartment of Mathematics, University of Florida, Gainesville, FL, USA