Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)


Volume 15, 2019   (Current volume)


A Self-Dual Integral Form of the Moonshine Module
Scott Carnahan
SIGMA 15 (2019), 030, 36 pages   [ abs   pdf ]
The Horn Problem for Real Symmetric and Quaternionic Self-Dual Matrices
Robert Coquereaux and Jean-Bernard Zuber
SIGMA 15 (2019), 029, 34 pages   [ abs   pdf ]
Explicit Solutions for a Nonlinear Vector Model on the Triangular Lattice
V.E. Vekslerchik
SIGMA 15 (2019), 028, 17 pages   [ abs   pdf ]
A Short Guide to Orbifold Deconstruction
Peter Bantay
SIGMA 15 (2019), 027, 10 pages   [ abs   pdf ]
Contravariant Form on Tensor Product of Highest Weight Modules
Andrey I. Mudrov
SIGMA 15 (2019), 026, 10 pages   [ abs   pdf ]
A Solvable Deformation of Quantum Mechanics
Alba Grassi and Marcos Mariño
SIGMA 15 (2019), 025, 42 pages   [ abs   pdf ]
On Higgs Bundles on Nodal Curves
Marina Logares
SIGMA 15 (2019), 024, 16 pages   [ abs   pdf ]
$\tau$-Functions, Birkhoff Factorizations and Difference Equations
Darlayne Addabbo and Maarten Bergvelt
SIGMA 15 (2019), 023, 42 pages   [ abs   pdf ]
On a Yang-Mills Type Functional
Cătălin Gherghe
SIGMA 15 (2019), 022,  8 pages   [ abs   pdf ]
Almost Lie Algebroids and Characteristic Classes
Marcela Popescu and Paul Popescu
SIGMA 15 (2019), 021, 12 pages   [ abs   pdf ]
Braid Group Action on Affine Yangian
Ryosuke Kodera
SIGMA 15 (2019), 020, 28 pages   [ abs   pdf ]
Linear Representations and Frobenius Morphisms of Groupoids
Juan Jesús Barbarán Sánchez and Laiachi El Kaoutit
SIGMA 15 (2019), 019, 33 pages   [ abs   pdf ]
Perspectives on the Asymptotic Geometry of the Hitchin Moduli Space
Laura Fredrickson
SIGMA 15 (2019), 018, 20 pages   [ abs   pdf ]
Ghostpeakons and Characteristic Curves for the Camassa-Holm, Degasperis-Procesi and Novikov Equations
Hans Lundmark and Budor Shuaib
SIGMA 15 (2019), 017, 51 pages   [ abs   pdf ]
The $q$-Borel Sum of Divergent Basic Hypergeometric Series ${}_r\varphi_s(a;b;q,x)$
Shunya Adachi
SIGMA 15 (2019), 016, 12 pages   [ abs   pdf ]
A Geometric Approach to the Concept of Extensivity in Thermodynamics
Miguel Ángel García-Ariza
SIGMA 15 (2019), 015, 14 pages   [ abs   pdf ]
Generalised Umbral Moonshine
Miranda C.N. Cheng, Paul de Lange and Daniel P.Z. Whalen
SIGMA 15 (2019), 014, 27 pages   [ abs   pdf ]
Block-Separation of Variables: a Form of Partial Separation for Natural Hamiltonians
Claudia Maria Chanu and Giovanni Rastelli
SIGMA 15 (2019), 013, 22 pages   [ abs   pdf ]
The Kashaev Equation and Related Recurrences
Alexander Leaf
SIGMA 15 (2019), 012, 64 pages   [ abs   pdf ]
Decomposition of some Witten-Reshetikhin-Turaev Representations into Irreducible Factors
Julien Korinman
SIGMA 15 (2019), 011, 25 pages   [ abs   pdf ]
Studying Deformations of Fuchsian Representations with Higgs Bundles
Brian Collier
SIGMA 15 (2019), 010, 32 pages   [ abs   pdf ]
On Reducible Degeneration of Hyperelliptic Curves and Soliton Solutions
Atsushi Nakayashiki
SIGMA 15 (2019), 009, 18 pages   [ abs   pdf ]
Homogeneous Real (2,3,5) Distributions with Isotropy
Travis Willse
SIGMA 15 (2019), 008, 28 pages   [ abs   pdf ]
Supersingular Elliptic Curves and Moonshine
Victor Manuel Aricheta
SIGMA 15 (2019), 007, 17 pages   [ abs   pdf ]
Open Problems for Painlevé Equations
Peter A. Clarkson
SIGMA 15 (2019), 006, 20 pages   [ abs   pdf ]
Solution of an Open Problem about Two Families of Orthogonal Polynomials
Walter Van Assche
SIGMA 15 (2019), 005,   6 pages   [ abs   pdf ]
Relations between Schoenberg Coefficients on Real and Complex Spheres of Different Dimensions
Pier Giovanni Bissiri, Valdir A. Menegatto and Emilio Porcu
SIGMA 15 (2019), 004, 12 pages   [ abs   pdf ]
Note on Character Varieties and Cluster Algebras
Kazuhiro Hikami
SIGMA 15 (2019), 003, 32 pages   [ abs   pdf ]
Coadjoint Orbits of Lie Algebras and Cartan Class
Michel Goze and Elisabeth Remm
SIGMA 15 (2019), 002, 20 pages   [ abs   pdf ]
Aspects of Calabi-Yau Integrable and Hitchin Systems
Florian Beck
SIGMA 15 (2019), 001, 25 pages   [ abs   pdf ]

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