At the 15th ISAAC Congress in Astana, Prof. Michael Ruzhansky delivered a public lecture titled: 

Analysis on Groups and Related Topics 
Collaboration with Kazakhstan.

Prof. Ruzhansky shared the story of a remarkable 15-year journey (2010–2025) of academic collaboration with Kazakhstan. Starting from his first lectures at KazNU in 2010, this partnership has grown to include joint research, PhD supervision, and postdoctoral mentorship for many young Kazakhstani scholars.

The collaborations have produced significant results in:

• Spectral Geometry and subelliptic BVPs: + Suragan, Kalmenov, Sadybekov, Sabitbek, ….
• Hardy, Rellich, Sobolev, CKN inequalities (weighted, anisotropic, fractional, critical cases): + Suragan, Kassymov, Yessirkegenov, Sabitbek, ….
• Fourier multipliers and analysis on groups: + Nursultanov, Akylzhanov, Tulenov, Shaimardan
• Nonharmonic analysis: + Tokmagambetov, Torebek, …
• Very weak solutions: + Tokmagambetov, Alybay, Yessirkegenov, Shaimardan, Yeskermessuly, …
• Heat equations: Torebek, Borikhanov, Turmetov, Kompysh, Kassymov, ….
• Inequalities on Lie groups, measuring spaces: + Suragan, Kassymov, Yessirkegenov, Zaur

Many of these works have been published in leading journals and collected in influential monographs, including Hardy Inequalities on Homogeneous Groups and Spectral Geometry of Partial Differential Operators.

This talk was more than a technical presentation — it was a celebration of friendship, mentorship, and the belief that mathematics knows no borders. The audience left inspired, reminded that sustained collaboration can transform both research landscapes and individual careers.

Here’s to the next 15 years of discovery and cooperation!