Hyperbolic Mirrors

Hyperbolic mirrors are geodesic lines or hyperplanes in hyperbolic space that serve as fixed sets for reflections, providing a geometric way to study symmetry beyond Euclidean geometry. A reflection across a mirror leaves every point on it unchanged and sends a point to an equal-distance point on the opposite side along a geodesic perpendicular to the mirror; in the Poincaré disk model, these mirrors appear as circles orthogonal to the boundary or as diameters. Collections of intersecting mirrors generate reflection groups and regular hyperbolic tessellations, supporting the classification of symmetries and the study of geometric structures, including links to topology and mathematical physics.

Hyperbolic Mirrors - Related Videos

Education

JoVE Core - Calculus

Hyperbolic and Inverse Hyperbolic Functions: Problem Solving

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2026

An arched gate can be effectively modeled using a hyperbolic cosine profile because this type of function is smooth and symmetric about the vertical axis. When the arch is centered at the origin, its maximum height occurs at the center point. This symmetry ensures that any height below the crown of the arch is reached at two horizontal positions that are equal in distance from the centerline but lie on opposite sides.To determine where the gate reaches a height of five meters, the height of the...

Motor Learning in Mirror Drawing

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2023

Source: Laboratory of Jonathan Flombaum—Johns Hopkins University Colloquially, the terms learning and memory encompass a broad range of behaviors and mental systems, everything from learning to tie a shoe to mastering calculus (and a lot in between). Experimental psychologists have divided up learning mechanisms into groups that seem to have different properties, and that seem to rely on different brain systems. A major division is between declarative and non-declarative memory, roughly, the...

Hyperbolic Functions

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2026

A flexible cable suspended between two points at the same height naturally forms a curve known as a catenary. This shape results from the balance between the cable’s weight and the tension acting along its length, representing a state of mechanical equilibrium. Unlike simpler approximations, the true shape of a hanging cable is described using hyperbolic functions.Hyperbolic functions are closely related to exponential functions and are named for their connection to the geometry of the...

Research

JoVE Journal - Environment
Free Sample

Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water

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2025

This study presents the methodology for the generation of six different types of plasma discharges within a Hyperbolic Vortex Plasma Reactor for the degradation of micropollutants in water, including pharmaceuticals and per- and polyfluoroalkyl substances (PFAS).

Inverse Hyperbolic Functions and Their Derivatives

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2026

The shape of a suspension bridge cable hanging under its own weight is described by a catenary curve, which is modeled using the hyperbolic cosine function. This mathematical model accurately captures the balance between gravity and tension acting along the cable. When a particular vertical position on the cable is known, the corresponding horizontal position can be determined using the inverse hyperbolic cosine function, allowing for a detailed analysis of the cable's geometry.Inverse...

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