Non-associative algebra | Historical treatment of quaternions

Hyperbolic quaternion

In abstract algebra, the algebra of hyperbolic quaternions is a nonassociative algebra over the real numbers with elements of the form where the squares of i, j, and k are +1 and distinct elements of {i, j, k} multiply with the anti-commutative property. The four-dimensional algebra of hyperbolic quaternions incorporates some of the features of the older and larger algebra of biquaternions. They both contain subalgebras isomorphic to the split-complex number plane. Furthermore, just as the quaternion algebra H can be viewed as a union of complex planes, so the hyperbolic quaternion algebra is a union of split-complex number planes sharing the same real line. It was Alexander Macfarlane who promoted this concept in the 1890s as his Algebra of Physics, first through the American Association for the Advancement of Science in 1891, then through his 1894 book of five Papers in Space Analysis, and in a series of lectures at Lehigh University in 1900. (Wikipedia).

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What are Hyperbolas? | Ch 1, Hyperbolic Trigonometry

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From playlist Summer of Math Exposition 2 videos

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The circle and projective homogeneous coordinates (cont.) | Universal Hyperbolic Geometry 7b

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From playlist Universal Hyperbolic Geometry

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Hyperbola 3D Animation | Objective conic hyperbola | Digital Learning

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From playlist Maths Topics

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Hyperbolic Geometry is Projective Relativistic Geometry (full lecture)

This is the full lecture of a seminar on a new way of thinking about Hyperbolic Geometry, basically viewing it as relativistic geometry projectivized, that I gave a few years ago at UNSW. We discuss three dimensional relativistic space and its quadratic/bilinear form, particularly the uppe

From playlist MathSeminars

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Orthocenters exist! | Universal Hyperbolic Geometry 10 | NJ Wildberger

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From playlist Universal Hyperbolic Geometry

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What is the definition of a hyperbola

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From playlist The Hyperbola in Conic Sections

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What is the definition of a hyperbola

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From playlist The Hyperbola in Conic Sections

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Introduction to Hyperbolic Functions

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From playlist Differentiation of Hyperbolic Functions

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Spectra in locally symmetric spaces by Alan Reid

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From playlist Zariski-dense Subgroups and Number-theoretic Techniques in Lie Groups and Geometry (Online)

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Taylor Dupuy | Spheres Packings in Hyperbolic Space

African Mathematics Seminar | 2 September 2020 Virtually hosted by the University of Nairobi Visit our webpage: https://sites.google.com/view/africa-math-seminar Sponsor: International Science Programme

From playlist Seminar Talks

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From PSL2 representation rigidity to profinite rigidity - Alan Reid and Ben McReynolds

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From playlist Mathematics

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Aurel PAGE - Cohomology of arithmetic groups and number theory: geometric, ... 1

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From playlist École d'Été 2022 - Cohomology Geometry and Explicit Number Theory

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Beauty and Truth in Mathematics; a Tribute to Albert Einstein and Hermann Weyl - Sir Michael Atiyah

Sir Michael Atiyah Institute for Advanced Study November 8, 2010 For more videos, visit http://video.ias.edu

From playlist Mathematics

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John Voight: Computing classical modular forms as orthogonal modular forms

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From playlist Algebraic and Complex Geometry

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Siggraph2019 Geometric Algebra

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From playlist Bivector.net

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Tetrahedral hyperbolic 3-manifolds and links by Andrei Vesnin

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From playlist Knots Through Web (Online)

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Right-angled Coxeter groups and affine actions ( Lecture 01) by Francois Gueritaud

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From playlist Surface group representations and Projective Structures (2018)

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The circle and projective homogeneous coordinates | Universal Hyperbolic Geometry 7a | NJ Wildberger

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From playlist Universal Hyperbolic Geometry

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Moves 2022 conference talk: Variants of the 15-puzzle and the effects of holonomy

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From playlist Talks

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Determining if a set of points makes a parallelogram or not

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From playlist Quadrilaterals on a Coordinate Plane

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