activity
19962026
most citedOn the Drach superintegrable systems

54 citations · 777 across the 87 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

nlin.SI2025

Comment on: "Stäckel and Eisenhart lifts, Haantjes geometry and Gravitation"

A. V. Tsiganov

One of the oldest methods for constructing integrable Hamiltonian systems, proposed by Jacobi, recently is being presented as a novel Stäckel lift construction related with Haantje…

nlin.SI2025

Homogeneous potentials, Lagrange's identity and Poisson geometry

A. V. Tsiganov

The Lagrange identity expresses the second derivative of the moment of inertia of a system of material points through kinetic energy and homogeneous potential energy, from which fo…

nlin.SI2025

Novikov equations for commuting differential operators of orders 3,4,5

G. B. Shabat, V. V. Sokolov, A. V. Tsiganov

We consider Novikov equations for commutative ring generated by differential operators of orders 3,4,5. We present an explicit Hamiltonian form of these equations. Using the method…

nlin.SI2025

On novel Hamiltonian description of the nonholonomic Suslov problem

A. V. Tsiganov

We present some new Poisson bivectors that are invariants by the flow of the nonholonomic Suslov problem. Two rank four invariant Poisson bivectors have globally defined Casimir fu…

nlin.SI2025★ 2 cited

On tensor invariants of the Clebsch system

A. V. Tsiganov

We present some new Poisson bivectors that are invariants by the Clebsch system flow. Symplectic integrators on their symplectic leaves exactly preserve the corresponding Casimir f…

math.DS2025

Multisymplectic structure of nonintegrable Henon-Heiles system

A. V. Tsiganov

Multi-symplectic integrators are typically regarded as a discretization of the Hamiltonian partial differential equations. This is due to the fact that, for generic finite-dimensio…