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We generalize and study the Zermelo navigation problem on Hermitian manifolds in the presence of a perturbation $W$ determined by a mild complex velocity vector field $||W(z)||_h<||u(z)||_h$, with application of complex Finsler metric of…

Differential Geometry · Mathematics 2019-03-25 Nicoleta Aldea , Piotr Kopacz

We generalize the Zermelo navigation problem and its solution on Riemannian manifolds $(M, h)$ admitting a space dependence of a ship's own speed $|u(x)|_h\leq1$ in the presence of a perturbation $W$ determined by a mild velocity vector…

Differential Geometry · Mathematics 2019-03-25 Piotr Kopacz

We address the time- and position-dependent Zermelo navigation problem within the framework of Lorentz-Finsler geometry. Since the initial work of E. Zermelo, the task is to find the time-minimizing trajectory between two regions for a…

Differential Geometry · Mathematics 2025-08-12 Steen Markvorsen , Enrique Pendás-Recondo , Frederik Möbius Rygaard

We generalize the Zermelo navigation problem and its solution on Riemannian manifolds $(M, h)$ admitting a space dependence of a ship's speed $0<|u(x)|_h\leq1$ in the presence of a perturbation $\tilde{W}$ determined by a strong velocity…

Differential Geometry · Mathematics 2019-03-25 Piotr Kopacz

The solution to the problem of finding a time-optimal control Hamiltonian to generate a given unitary gate, in an environment in which there exists an uncontrollable ambient Hamiltonian (e.g., a background field), is obtained. In the…

Quantum Physics · Physics 2015-03-18 Dorje C. Brody , David Meier

We consider remodeling the planar search patterns, in the presence of the river-type perturbation represented by the weak vector field, basing on the time-optimal paths as Finslerian solutions to the Zermelo navigation problem via Randers…

Differential Geometry · Mathematics 2019-03-25 Piotr Kopacz

In this paper, we study Zermelo navigation on Riemannian manifolds and use that to solve a long standing problem in Finsler geometry. Namely, the complete classification of strongly convex Randers metrics of constant flag curvature.

Differential Geometry · Mathematics 2007-05-23 David Bao , Colleen Robles , Zhongmin Shen

In the present work, we study the optimal control paths in the Zermelo navigation problem from the geometric and differential equations point of view rather than the optimal control point of view, where the latter has been carried out in…

Optimization and Control · Mathematics 2023-04-04 Zohreh Fathia , Behroz Bidabad

We study a generalized version of Zermelo's navigation problem where the set of admissible velocities is a general compact convex set, replacing the classical Euclidean ball. After establishing existence results under the natural assumption…

Optimization and Control · Mathematics 2026-04-24 Matteo Della Rossa , Lorenzo Freddi , Mattia Pinatto

We use a specific geometric method to determine speed limits to the implementation of quantum gates in controlled quantum systems that have a specific class of constrained control functions. We achieve this by applying a recent theorem of…

Quantum Physics · Physics 2014-07-09 Benjamin Russell , Susan Stepney

In this work, we solve the generalized Matsumoto's slope-of-a-mountain problem by means of Riemann-Finsler geometry, making close links with the Zermelo navigation problem. The time-minimizing navigation under gravity is analyzed in the…

Differential Geometry · Mathematics 2025-07-29 Nicoleta Aldea , Piotr Kopacz

Finding the fastest path to a desired destination is a vitally important task for microorganisms moving in a fluid flow. We study this problem by building an analytical formalism for overdamped microswimmers on curved manifolds and…

Biological Physics · Physics 2021-05-26 Lorenzo Piro , Evelyn Tang , Ramin Golestanian

Zermelo's navigation problem seeks the trajectory of minimal travel time between two points in a fluid flow. We address this problem for an agent -- such as a micro-robot or active particle -- that is advected by a two-dimensional flow,…

Fluid Dynamics · Physics 2025-12-29 Vladimir Parfenyev

In this work, we pose and solve the time-optimal navigation problem considered on a slippery mountain slope modeled by a Riemannian manifold of an arbitrary dimension, under the action of a cross gravitational wind. The impact of both…

Differential Geometry · Mathematics 2025-07-29 Nicoleta Aldea , Piotr Kopacz

We consider a triality between the Zermelo navigation problem, the geodesic flow on a Finslerian geometry of Randers type, and spacetimes in one dimension higher admitting a timelike conformal Killing vector field. From the latter…

General Relativity and Quantum Cosmology · Physics 2009-05-05 G. W. Gibbons , C. A. R. Herdeiro , C. M. Warnick , M. C. Werner

We consider arbitrary-shaped microswimmers of spherical topology and propose a framework for expressing their slip velocity in terms of tangential basis functions defined on the boundary of the swimmer using the Helmholtz decomposition.…

Fluid Dynamics · Physics 2026-04-14 Kausik Das , Hai Zhu , Marc Bonnet , Shravan Veerapaneni

We investigate the travel time in a navigation problem from a geometric perspective. The setting involves an open subset of the Euclidean plane, representing a lake perturbed by a symmetric wind flow proportional to the distance from the…

Differential Geometry · Mathematics 2024-11-05 Newton Solórzano , Víctor León , Alexandre Henrique , Marcelo Souza

The generalized Zermelo navigation problem looks for the shortest time paths in an environment, modeled by a Finsler manifold (M,F), under the influence of wind or current, represented by a vector field W. The main objective of this paper…

Differential Geometry · Mathematics 2023-01-31 Benigno Oliveira Alves , Patricia Marcal

Coastal erosion describes the displacement of sand caused by the movement induced by tides, waves or currents. Some of its wave phenomena are modeled by Helmholtz-type equations. Our purposes, in this paper are, first, to study optimal…

Numerical Analysis · Mathematics 2022-07-05 Mame Gor Ngom , Ibrahima Faye , Diaraf Seck

We analyse the optimal times for implementing unitary quantum gates in a constrained finite dimensional controlled quantum system. The family of constraints studied is that the permitted set of (time dependent) Hamiltonians is the unit ball…

Quantum Physics · Physics 2015-03-03 Benjamin Russell , Susan Stepney
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