As mathematicians, we know that numbers have character. And the year 2026 is special — it is a “happy number”!

In number theory, a happy number is a number that eventually reaches 1 when replaced by the sum of the squares of its digits.

The year 2025 was marked by significant events in mathematics — from international recognition of scholars to historic breakthroughs in fundamental theories.

Outstanding Awards and Recognition

Breakthrough Prize in Mathematics — the prestigious 2025 prize was awarded to the eminent mathematician Dennis Gaitsgory for his fundamental contributions to the Geometric Langlands Program, in particular for proving the Geometric Langlands Conjecture in characteristic zero.

On December 24 and 26, 2025, the Department of Applied Mathematics hosted the defense of Master’s qualification theses for students of Specialty 124 System Analysis, which was held in a remote format.

The Examination Board heard presentations covering a wide range of current topics. The Board members noted the thoroughness of the research, the Master’s students’ ability to apply modern system analysis methods to solve practical problems, and the high level of presentation of the results. All theses were successfully defended and received high marks.