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The aim of this paper is to obtain on the dual 1-jet space J^{1*}(R;M) the main geometrical objects used in the dual jet geometry of time-dependent Hamiltonians. We talk about distinguished (d-) tensors, time-dependent semisprays, nonlinear…

Differential Geometry · Mathematics 2021-07-23 Mircea Neagu , Alexandru Oana

The aim of this paper is to open the problem of construction of a nonlinear connection $\Gamma=(M^{(i)}_{(\alpha)\beta}, N^{(i)}_{(\alpha)j})$ on the jet bundle of first order $J^1(T,M)$, which to be canonically produced by a Kronecker…

Differential Geometry · Mathematics 2010-07-29 Mircea Neagu

The aim of this paper is to present the main geometrical objects on the dual 1-jet bundle $J^{1*}(\cal{T},M)$ (this is the polymomentum phase space of the De Donder-Weyl covariant Hamiltonian formulation of field theory) that characterize…

Differential Geometry · Mathematics 2010-07-29 Gheorghe Atanasiu , Mircea Neagu

In this paper we construct a distinguished Riemannian geometrization on the dual 1-jet space J^{1*}(T,M) for the multi-time quadratic Hamiltonian functions. Our geometrization includes a nonlinear connection N, a generalized Cartan…

Differential Geometry · Mathematics 2012-10-02 Alexandru Oana , Mircea Neagu

In this paper we study a collection of jet geometrical concepts, we refer to d-tensors, relativistic time dependent semisprays, harmonic curves and nonlinear connections on the 1-jet space J1(R;M), necessary to the construction of a…

Differential Geometry · Mathematics 2010-09-14 Mircea Neagu

The aim of this paper is to create a large geometrical background on the dual 1-jet space J^{1*}(T,M) for a multi-time Hamiltonian approach of the electromagnetic and gravitational physical fields. Our geometric-physical construction is…

Mathematical Physics · Physics 2013-07-12 Alexandru Oana , Mircea Neagu

In this paper we study the geometrical structures on the cotangent bundle using the notions of adapted tangent structure and regular vector fields. We prove that the dynamical covariant derivative on $T^{*}M$ fix a nonlinear connection for…

Differential Geometry · Mathematics 2016-04-04 Liviu Popescu

We propose a novel approach to contact Hamiltonian mechanics which, in contrast to the one dominating in the literature, serves also for non-trivial contact structures. In this approach Hamiltonians are no longer functions on the contact…

Symplectic Geometry · Mathematics 2022-11-03 Katarzyna Grabowska , Janusz Grabowski

The paper developes a geometrization of a Kronecker $h$-regular vertical fundamental metrical d-tensor $G^{(\alpha)(\beta)}_{(i)(j)}$ on the jet fibre bundle of order one $J^1(T,M)$. This geometrization gives a mathematical model for both…

Differential Geometry · Mathematics 2010-07-26 Mircea Neagu

We consider a pair of smooth manifolds, which are the counterparts in the even-dimensional and odd-dimensional cases. They are separately an almost complex manifold with Norden metric and an almost contact manifolds with B-metric,…

Differential Geometry · Mathematics 2015-05-06 Mancho Manev

We develop a systematic procedure to quantise canonically Hamiltonians of light-matter models of transmission lines coupled through lumped linear lossless ideal nonreciprocal elements, that break time-reversal symmetry, in a circuit QED…

Quantum Physics · Physics 2022-04-20 A. Parra-Rodriguez , I. L. Egusquiza

\noindent Let $M\to N$ (resp.\ $C\to N$) be the fibre bundle of pseudo-Riemannian metrics of a given signature (resp.\ the bundle of linear connections) on an orientable connected manifold $N$. A geometrically defined class of first-order…

Mathematical Physics · Physics 2011-04-15 J. Muñoz Masqué , M. Eugenia Rosado María

In this paper we present a method by which is obtained a sequence of $k$-semisprays and two sequences of nonlinear connections on the $k$-tangent bundle $T^kM$, starting from a given one. Interesting particular cases appear for Lagrange and…

Differential Geometry · Mathematics 2016-01-06 Florian Munteanu

A new geometric framework is developed to describe non-conservative classical field theories, which is based on multisymplectic and contact geometries. Assuming certain additional conditions and using the forms that define this multicontact…

Mathematical Physics · Physics 2023-02-22 Manuel de León , Jordi Gaset , Miguel Carlos Muñoz-Lecanda , Xavier Rivas , Narciso Román-Roy

A geometrization of a Kronecker $h$-regular multi-time Lagrangian function with partial derivatives of order one is described, in the sense of d-connections, d-torsions and d-curvatures.

Differential Geometry · Mathematics 2010-07-29 Mircea Neagu , Constantin Udriste

We investigate the symplectic geometric and differential geometric aspects of the moduli space of connections on a compact Riemann surface $X$. Fix a theta characteristic $K^{1/2}_X$ on $X$; it defines a theta divisor on the moduli space…

Algebraic Geometry · Mathematics 2021-06-30 Indranil Biswas , Jacques Hurtubise

In this paper are constructed a series of geometrical objects on the 1-jet fibre bundle $J^1(T,M)$, which is a basic object in the study of classical and quantum field.

Differential Geometry · Mathematics 2010-07-29 Mircea Neagu , Constantin Udriste

This paper is focused on the development of the notions of canonical and canonoid transformations within the framework of Hamiltonian Mechanics on locally conformal symplectic manifolds. Both, time-independent and time-dependent dynamics…

Mathematical Physics · Physics 2025-09-16 Rafael Azuaje , Xuefeng Zhao

In this paper we present canonical and canonoid transformations considered as global geometrical objects for Hamiltonian systems. Under the mathematical formalisms of symplectic, cosymplectic, contact and cocontact geometry, the canonoid…

Mathematical Physics · Physics 2023-03-15 R. Azuaje , A. M. Escobar-Ruiz

In this paper the theory of time-dependent and time-independent canonical transformations is considered from a geometric perspective. Both the geometric formalism and the coordinate based approach are described in detail. In particular,…

Mathematical Physics · Physics 2024-09-30 R. Azuaje , A. M. Escobar-Ruiz
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