Success Story: From Mathematical Control Theory to NIW Approval for a Researcher Advancing Smart Systems
Client’s Testimonial:
"Thank you so much for the excellent work on the petition.”
On April 29th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Ph.D. Student in the Field of Applied Mathematics (Approval Notice).
General Field: Applied Mathematics
Position at the Time of Case Filing: Ph.D. Student
Country of Origin: Turkey
State of Residence at the Time of Filing: Maryland
Approval Notice Date: April 29th, 2026
Processing Time: 11 months, 14 days (Premium Processing Requested)
Case Summary:
The petition centered on the client’s work developing numerical methods and solvers for partial differential equations with applications in robotics and wearable technologies. North America Immigration Law Group (Chen Immigration Law Associates) showed that this research had national importance because it supported better sensing, stronger control, and more reliable smart-material applications. The national significance of his work was further reinforced by documented support from the National Science Foundation (NSF). As one recommender explained, “His research supports the modernization of infrastructure and aligns with critical technologies in advanced modeling and networked sensing, providing the tools necessary to improve system performance and enhance the reliability of smart material applications.”
Instead of presenting the record as a list of isolated projects, the case showed a clear technical pattern. His research repeatedly returned to the same practical challenge: how to improve observability, controllability, and stabilization in complex systems. That theme appeared across his work on smart beams, sensor design, feedback amplifiers, and motion-related modeling. To document that he was well-positioned to continue advancing this endeavor, the petition highlighted:
- Expert Support: Two recommendation letters from recognized authorities in the field.
- Publication Record: 4 peer-reviewed journal articles, 1 peer-reviewed conference paper, 1 first-authored preprint, and 2 technical reports
- Citation Impact: 28 citations, with papers ranking among the top 1% and top 10% most-cited mathematics articles for their publication years.
The filing further showed that other researchers had already used his work in later studies involving electromechanical systems, piezoelectric beams, and motion planning. Following a Premium Processing upgrade submitted on March 19th, 2026, the case was rapidly approved. We were proud to help secure this NIW approval for a researcher whose work strengthens the mathematical foundations behind future robotics, wearable technologies, and smart sensing systems in the United States.

