Heterotic supergravity with (1+3)–dimensional domain wall configurations and (warped) internal, six dimensional, almost-Kähler manifolds X are studied. Considering on ten dimensional spacetime, nonholonomic distributions with conventional double fibrations, 2+2+...=2+2+3+3, and associated SU(3) structures on internal space, we generalize for real, internal, almost symplectic gravitational struc...

This paper introduces a new method for constructing ex ponentially convergent control laws for n dimensional nonholo nomic systems in power form The methodology is based on the construction of a series of invariant manifolds for the closed loop system under a linear control law A recursive algorithm is presented to derive a feedback controller which drives the system exponentially to the origin...

The system under investigation is the hydraulically driven large-scale combined legged and wheeled vehicle ALDURO. It combines the advantages of a walking machine with the stability and speed of a wheeled vehicle. It is able to move over rugged terrain. Due to the kinematic constraints arising at the wheel-ground contact, ALDURO is a nonholonomic system which includes several closed kinematic l...

We argue that the Einstein gravity theory can be reformulated in almost Kähler (nonsymmetric) variables with effective symplectic form and compatible linear connection uniquely defined by a (pseudo) Riemannian metric. A class of nonsymmetric theories of gravitation (NGT) on manifolds enabled with nonholonomic distributions is analyzed. There are considered some conditions when the fundamental g...

The developments in this paper are concerned with nonholonomic field theories in the presence of symmetries. Having previously treated the case of vertical symmetries, we now deal with the case where the symmetry action can also have a horizontal component. As a first step in this direction, we derive a new and convenient form of the field equations of a nonholonomic field theory. Nonholonomic ...