Special Issue on Symmetry, Invariants, and their Applications in honor of Peter J. Olver's 70th Birthday

The Guest Editors for this special issue are

Alex Bihlo (Memorial University of Newfoundland, Canada)
Mark Fels (Utah State University, USA)
Irina Kogan (North Carolina State University, USA)
Robert Milson (Dalhousie University, Canada)
Francis Valiquette (Monmouth University, USA)

This special issue complements the conference Symmetry, Invariants, and their Applications: A Celebration of Peter J. Olver's 70th Birthday held at Dalhousie University, August 3–5, 2022.

The volume consists of 15 papers for a total of 389 pages.

We are grateful to all the authors who contributed to this volume and to the referees for providing constructive reviews.

Papers in this Issue:

Symmetries in Riemann-Cartan Geometries

David D. McNutt, Alan A. Coley and Robert J. van den Hoogen
SIGMA 20 (2024), 078, 20 pages   [ abs   pdf ]

Lie Admissible Triple Algebras: The Connection Algebra of Symmetric Spaces

Hans Z. Munthe-Kaas and Jonatan Stava
SIGMA 20 (2024), 068, 28 pages   [ abs   pdf ]

Dynamic Feedback Linearization of Control Systems with Symmetry

Jeanne N. Clelland, Taylor J. Klotz and Peter J. Vassiliou
SIGMA 20 (2024), 058, 49 pages   [ abs   pdf ]

Talbot Effect for the Manakov System on the Torus

Zihan Yin, Jing Kang, Xiaochuan Liu and Changzheng Qu
SIGMA 20 (2024), 056, 26 pages   [ abs   pdf ]

The Cobb-Douglas Production Function and the Old Bowley's Law

Roman G. Smirnov and Kunpeng Wang
SIGMA 20 (2024), 045, 20 pages   [ abs   pdf ]

mKdV-Related Flows for Legendrian Curves in the Pseudohermitian 3-Sphere

Annalisa Calini, Thomas Ivey and Emilio Musso
SIGMA 20 (2024), 027, 30 pages   [ abs   pdf ]

Superposition Formulae for the Geometric Bäcklund Transformations of the Hyperbolic and Elliptic Sine-Gordon and Sinh-Gordon Equations

Filipe Kelmer and Keti Tenenblat
SIGMA 20 (2024), 015, 27 pages   [ abs   pdf ]

Lepage Equivalents and the Variational Bicomplex

David Saunders
SIGMA 20 (2024), 013, 18 pages   [ abs   pdf ]

$\mathfrak{gl}(3)$ Polynomial Integrable System: Different Faces of the 3-Body/${\mathcal A}_2$ Elliptic Calogero Model

Alexander V. Turbiner, Juan Carlos Lopez Vieyra and Miguel A. Guadarrama-Ayala
SIGMA 20 (2024), 012, 23 pages   [ abs   pdf ]

Moving Frames: Difference and Differential-Difference Lagrangians

Lewis C. White and Peter E. Hydon
SIGMA 20 (2024), 006, 29 pages   [ abs   pdf ]

Computation of Infinitesimals for a Group Action on a Multispace of One Independent Variable

Peter Rock
SIGMA 20 (2024), 002, 18 pages   [ abs   pdf ]

On the Total CR Twist of Transversal Curves in the 3-Sphere

Emilio Musso and Lorenzo Nicolodi
SIGMA 19 (2023), 101, 36 pages   [ abs   pdf ]

Non-Existence of S-Integrable Three-Point Partial Difference Equations in the Lattice Plane

Decio Levi and Miguel A. Rodríguez
SIGMA 19 (2023), 084,   7 pages   [ abs   pdf ]

On Uniqueness of Submaximally Symmetric Vector Ordinary Differential Equations of C-Class

Johnson Allen Kessy and Dennis The
SIGMA 19 (2023), 058, 29 pages   [ abs   pdf ]

Darboux Transformations for Orthogonal Differential Systems and Differential Galois Theory

Primitivo Acosta-Humánez, Moulay Barkatou, Raquel Sánchez-Cauce and Jacques-Arthur Weil
SIGMA 19 (2023), 016, 29 pages   [ abs   pdf ]