1 citations · 2 across the 3 of their papers we have counts for
5 papers
Report on the absolute differential equations I
Veronika Chrastinova, Vaclav Tryhuk
The article provides a modest survey of the absolute theory of general systems of (partial) differential equations. The equations are relieved of all additional structures and subj…
On the internal approach to differential equations 2. The controllability structure
Veronika Chrastinová, Václav Tryhuk
The article concerns the geometrical theory of general systems of partial differential equations in the \emph{absolute sense}, i.e., without any additional structure and subjec…
On the exact inverse problem of the calculus of variations
Veronika Chrastinova, Vaclav Tryhuk
The article concerns the problem if a~given system of differential equations is identical with the Euler--Lagrange system of an~appropriate variational integral. Elementary approac…
On the internal approach to differential equations 3. Infinitesimal symmetries
Veronika Chrastinová \and Václav Tryhuk
The geometrical theory of partial differential equations in the absolute sense, without any additional structures, is developed. In particular the symmetries need not preserve the…
On the internal approach to differential equations 1. The involutiveness and standard basis
Veronika Chrastinová, Václav Tryhuk
The article treats the geometrical theory of partial differential equations in the absolute sense, i.e., without any additional structures and especially without any preferred choi…