ELISHA WILSON MORSE

Elisha Atkins, M.D.: an appreciation.

Sean Lawton and Elisha Peterson

Denote the free group on 2 letters by F2 and the SL(2,C)-representation variety of F2 by R = Hom(F2, SL(2,C)). The group SL(2,C) acts on R by conjugation. We construct an isomorphism between the coordinate ring C[SL(2,C)] and the ring of matrix coefficients, providing an additive basis of C[R]SL(2,C) in terms of spin networks. Using a graphical calculus, we determine the symmetries and multipli...

Elisha Perkins and His Metallic Tractors

Hocus! pocus! up and down! Draw the white right from the crown! Hocus! pocus! at a loss! Draw the brazen rod across! Hocus! pocus! down and up! Draw them both from foot to top! Wooden nutmegs and counterfeit money are not the only frauds that have had their origin in Connecticut. To the members of the medical profession Perkins' Metallic Tractors are of the most interest. immediately began the ...

The Wilson-Wilson Experiment

An example of unipolar induction is a slab of material with (relative) permittivity and (relative) permeability μ that is immersed in a uniform external magnetic field H0 parallel to the plane of the slab, such that if the slab has velocity v perpendicular to H0 but also in the plane of the slab, a nonzero voltage difference V is detected between sliding contacts (fixed in the laboratory) on op...

Morse Homology

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