Sigrid M. -L. Obenland

[3] viXra:2509.0057 submitted on 2025-09-10 17:17:49 , (213 unique-IP downloads)

Doubling of a Cube (the Delian Problem) with Compass and Straightedge

Authors: Sigrid M. -L. Obenland
Category: Geometry

[2] viXra:2503.0051 submitted on 2025-03-09 17:59:27 , (307 unique-IP downloads)

Disprove of a Proof of Euler's Formula

Authors: Sigrid M.-L. Obenland
Category: Functions and Analysis

[1] viXra:2502.0014 submitted on 2025-02-02 20:59:41 , (214 unique-IP downloads)

Incorporation of Imaginary and Complex Numbers into a 3D Coordinate System

Authors: Sigrid M.-L. Obenland
Category: General Mathematics