The GPH – International Journal of Mathematics (GPH-IJM) (E-ISSN: 3050-9645), Volume 9, Issue 08 (2026) brings together a selection of peer-reviewed research contributions covering contemporary developments in mathematics and its applications. This issue includes studies across pure and applied mathematics, mathematical modelling, statistics, optimization, analysis, algebra, and interdisciplinary applications. The published research presents theoretical results, analytical approaches, and practical mathematical insights that contribute to the advancement of mathematical knowledge and its application to scientific and real-world problems. All manuscripts included in this issue underwent a rigorous double-blind peer review process in accordance with established academic publishing and research ethics standards.