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• 20:00, 18 February 2026 Verbovet talk contribs created page Seminar talk, 25 February 2026 (Created page with "{{Talk | speaker = Anna Duyunova | title = Differential invariants and quotient of the Euler equations on a sphere | abstract = We consider the Euler system on a sphere written in stereographic coordinates. Since the system is underdetermined we consider flow of a medium taking into account thermodynamic equations of state. Lie algebras of symmetries of the Euler system are found and we give their classification depending on possible equations of state. Among these Lie...")