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Bibliographic Details
Main Author: Sebek, Michael
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2510.15598
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Table of Contents:
  • We develop observer design over hypercomplex quaternions in a characteristic-polynomial-free framework. Using the standard right-module convention, we derive a right observable companion form and companion polynomial that encode error dynamics through right-eigenvalue similarity classes. We also give an Ackermann-type formula for real-coefficient target polynomials, where polynomial evaluation is similarity-equivariant. The resulting recipes place observer poles directly over quaternions and clarify when companion-coordinate updates and one-shot Ackermann formulas remain valid.