Orthonormal tetrad/frame name question

quasar_4 · Feb 27, 2009

This is just a "lingo" question, and maybe it belongs in a relativity/field theory thread instead of here, but does anyone know: is the term "orthonormal tetrad" referring to the same object as an "orthonormal frame"?

The tetrad bit is throwing me off, but I'm pretty sure they're the same. Anyone know?

shoehorn · Feb 27, 2009

Yes, although it's technically incorrect to apply the term "tetrad" in any situation other than with four dimensions, 'tetr-' being the Greek root for "four."

Orthonormal tetrad/frame name question

Discussion

Graduate Nonautonomous Lie derivative

Graduate A nice YouTube channel about all things Riemann Zeta

Graduate Equivalent definitions of tensor field

Undergrad What is "x" in this definition of a basis?

Graduate Knots In 4D

Graduate Nonautonomous Lie derivative

Insights Revisiting the Velocity-Time Function

Insights Remote Operated Gate Control System

Insights AI Enriched Problem Solving

Insights Thinking Outside The Box Versus Knowing What’s In The Box

Insights Why Entangled Photon-Polarization Qubits Violate Bell’s Inequality

Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect

Orthonormal tetrad/frame name question

Discussion

Similar threads

Graduate I am a bit confused at orthonormal tetrad in General Relativity

Graduate Does an Orthonormal Frame Exist on a Surface with a Riemannian Metric?

Undergrad Proof that if T is Hermitian, eigenvectors form an orthonormal basis

Graduate Covariant derivative of Lie-Bracket in normal orthonormal frame

Graduate Orthonormal Frame: is $\nabla_{e_1}e_j$ 0 if i≠j?

Graduate How to trasform an orthonormal system in two reference frames

Linear Algebra, Orthonormal question

Graduate Circular coordinate space using an orthonormal basis

Graduate BRS: Random Comments on Some Recent PF Threads

Mathematica This Week's Finds in Mathematical Physics (Week 236)