3 papers
physics.class-ph2023
Helmholtz Theorem and Uniqueness
Oliver Davis Johns
Vector calculus in three dimensions with a Euclidian metric is the lingua franca of classical physics, including classical electrodynamics. This article corrects some long-standing…
physics.class-ph2023
Magnetic Charge and Dyality Invariance
Oliver Davis Johns
This paper is a critical study of non-standard Maxwellian electrodynamics. It explores two important topics: the inclusion of both magnetic and electric charge to produce what it c…
physics.hist-ph2019
Leibniz Equivalence, Newton Equivalence, and Substantivalism
Oliver Davis Johns
Active diffeomorphisms map a differentiable manifold to itself. They transform manifold points and objects without changing the system of local coordinates used to represent those…