YOGYAKARTA, Indonesia, April 8 — A newly inaugurated professor at UIN Sunan Kalijaga Yogyakarta has underscored the growing importance of applied mathematics in addressing complex, uncertain systems, as the university formally conferred six professorships in a senate ceremony on Wednesday.

Prof. Muhammad Wakhid Musthofa, appointed in Applied Mathematics, presented a framework focused on “robust optimal control” during his inaugural address, arguing that mathematical models must extend beyond theoretical constructs to inform decision-making in unpredictable environments.

In his speech, delivered at the university’s multipurpose hall, Wakhid said modern systems — ranging from economic structures to technological networks — are increasingly characterized by instability and uncertainty, requiring control mechanisms that remain effective under disruption.

He proposed the use of robust optimal control, a method designed to maintain system performance despite external disturbances, as a key approach to managing such complexity.

Wakhid further integrated this approach with dynamic game theory, a mathematical framework used to analyze strategic interactions among multiple actors. He said this method has practical relevance in areas such as economic competition, resource management and global policy dynamics (methodological discussion section).

A central element of his research involves descriptor systems, which allow for the modeling of complex relationships and constraints that cannot be captured through conventional equations. According to Wakhid, these systems offer a more realistic representation of real-world conditions.

Beyond technical contributions, Wakhid emphasized that scientific development at UIN Sunan Kalijaga should align with an integrative paradigm that connects scientific inquiry with ethical and societal values. In this context, he positioned mathematics as a tool not only for achieving system stability and resilience, but also for advancing public benefit (integrative reflection section).

“Knowledge must not stop at academic boundaries, but should contribute to society,” he said .

The address reflects the university’s broader push to strengthen applied research with social relevance, amid rising global demand for adaptive, data-driven systems capable of responding to complex challenges.