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Contractions of Degenerate Quadratic Algebras, Abstract and Geometric
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Mauricio A. Escobar Ruiz, Willard Miller Jr. and Eyal Subag
SIGMA 13 (2017), 099, 32 pages [ abs
pdf ]
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On the Generalization of Hilbert's Fifth Problem to Transitive Groupoids
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Paweł Raźny
SIGMA 13 (2017), 098, 10 pages [ abs
pdf ]
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An Application of the Moving Frame Method to Integral Geometry in the Heisenberg Group
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Hung-Lin Chiu, Yen-Chang Huang and Sin-Hua Lai
SIGMA 13 (2017), 097, 27 pages [ abs
pdf ]
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Four-Dimensional Painlevé-Type Equations Associated with Ramified Linear Equations III: Garnier Systems and Fuji-Suzuki Systems
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Hiroshi Kawakami
SIGMA 13 (2017), 096, 50 pages [ abs
pdf ]
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The Chazy XII Equation and Schwarz Triangle Functions
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Oksana Bihun and Sarbarish Chakravarty
SIGMA 13 (2017), 095, 24 pages [ abs
pdf ]
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Algebraic Bethe Ansatz for the XXZ Gaudin Models with Generic Boundary
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Nicolas Crampe
SIGMA 13 (2017), 094, 13 pages [ abs
pdf ]
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Orbital Linearization of Smooth Completely Integrable Vector Fields
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Nguyen Tien Zung
SIGMA 13 (2017), 093, 11 pages [ abs
pdf ]
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A Variation of the $q$-Painlevé System with Affine Weyl Group Symmetry of Type $E_7^{(1)}$
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Hidehito Nagao
SIGMA 13 (2017), 092, 18 pages [ abs
pdf ]
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James' Submodule Theorem and the Steinberg Module
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Meinolf Geck
SIGMA 13 (2017), 091, 6 pages [ abs
pdf ]
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Orthogonal Rational Functions on the Unit Circle with Prescribed Poles not on the Unit Circle
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Adhemar Bultheel, Ruyman Cruz-Barroso and Andreas Lasarow
SIGMA 13 (2017), 090, 49 pages [ abs
pdf ]
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A Universal Genus-Two Curve from Siegel Modular Forms
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Andreas Malmendier and Tony Shaska
SIGMA 13 (2017), 089, 17 pages [ abs
pdf ]
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Positive Definite Functions on Complex Spheres and their Walks through Dimensions
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Eugenio Massa, Ana Paula Peron and Emilio Porcu
SIGMA 13 (2017), 088, 16 pages [ abs
pdf ]
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Zeta Functions of Monomial Deformations of Delsarte Hypersurfaces
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Remke Kloosterman
SIGMA 13 (2017), 087, 22 pages [ abs
pdf ]
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Parallelisms & Lie Connections
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David Blázquez-Sanz and Guy Casale
SIGMA 13 (2017), 086, 28 pages [ abs
pdf ]
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The Inverse Spectral Problem for Jacobi-Type Pencils
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Sergey M. Zagorodnyuk
SIGMA 13 (2017), 085, 16 pages [ abs
pdf ]
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Realization of $U_q({\mathfrak{sp}}_{2n})$ within the Differential Algebra on Quantum Symplectic Space
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Jiao Zhang and Naihong Hu
SIGMA 13 (2017), 084, 21 pages [ abs
pdf ]
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Twists of Elliptic Curves
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Max Kronberg, Muhammad Afzal Soomro and Jaap Top
SIGMA 13 (2017), 083, 13 pages [ abs
pdf ]
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Differential Calculus on h-Deformed Spaces
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Basile Herlemont and Oleg Ogievetsky
SIGMA 13 (2017), 082, 28 pages [ abs
pdf ]
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A Projective-to-Conformal Fefferman-Type Construction
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Matthias Hammerl, Katja Sagerschnig, Josef Šilhan, Arman Taghavi-Chabert and Vojtĕch Zádník
SIGMA 13 (2017), 081, 33 pages [ abs
pdf ]
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Integrable Deformations of Sine-Liouville Conformal Field Theory and Duality
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Vladimir A. Fateev
SIGMA 13 (2017), 080, 22 pages [ abs
pdf ]
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Elliptic Determinantal Processes and Elliptic Dyson Models
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Makoto Katori
SIGMA 13 (2017), 079, 36 pages [ abs
pdf ]
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Rational Solutions to the ABS List: Transformation Approach
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Danda Zhang and Da-Jun Zhang
SIGMA 13 (2017), 078, 24 pages [ abs
pdf ]
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Non-Homogeneous Hydrodynamic Systems and Quasi-Stäckel Hamiltonians
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Krzysztof Marciniak and Maciej Błaszak
SIGMA 13 (2017), 077, 15 pages [ abs
pdf ]
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Factorizable $R$-Matrices for Small Quantum Groups
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Simon Lentner and Tobias Ohrmann
SIGMA 13 (2017), 076, 25 pages [ abs
pdf ]
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Derivations and Spectral Triples on Quantum Domains I: Quantum Disk
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Slawomir Klimek, Matt McBride, Sumedha Rathnayake, Kaoru Sakai and Honglin Wang
SIGMA 13 (2017), 075, 26 pages [ abs
pdf ]
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Coherent Transport in Photonic Lattices: A Survey of Recent Analytic Results
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Éric-Olivier Bossé and Luc Vinet
SIGMA 13 (2017), 074, 19 pages [ abs
pdf ]
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Classification of a Subclass of Two-Dimensional Lattices via Characteristic Lie Rings
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Ismagil Habibullin and Mariya Poptsova
SIGMA 13 (2017), 073, 26 pages [ abs
pdf ]
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On the Automorphisms of a Rank One Deligne-Hitchin Moduli Space
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Indranil Biswas and Sebastian Heller
SIGMA 13 (2017), 072, 19 pages [ abs
pdf ]
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$N$-Bright-Dark Soliton Solution to a Semi-Discrete Vector Nonlinear Schrödinger Equation
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Bao-Feng Feng and Yasuhiro Ohta
SIGMA 13 (2017), 071, 16 pages [ abs
pdf ]
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Restriction of Odd Degree Characters of $\mathfrak{S}_n$
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Christine Bessenrodt, Eugenio Giannelli and Jørn B. Olsson
SIGMA 13 (2017), 070, 10 pages [ abs
pdf ]
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An Elliptic Garnier System from Interpolation
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Yasuhiko Yamada
SIGMA 13 (2017), 069, 8 pages [ abs
pdf ]
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Null Angular Momentum and Weak KAM Solutions of the Newtonian $N$-Body Problem
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Boris A. Percino-Figueroa
SIGMA 13 (2017), 068, 8 pages [ abs
pdf ]
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Minuscule Schubert Varieties and Mirror Symmetry
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Makoto Miura
SIGMA 13 (2017), 067, 25 pages [ abs
pdf ]
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Asymptotic Representations of Quantum Affine Superalgebras
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Huafeng Zhang
SIGMA 13 (2017), 066, 25 pages [ abs
pdf ]
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Rational Solutions of the Painlevé-II Equation Revisited
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Peter D. Miller and Yue Sheng
SIGMA 13 (2017), 065, 29 pages [ abs
pdf ]
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A Generalization of the Doubling Construction for Sums of Squares Identities
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Chi Zhang and Hua-Lin Huang
SIGMA 13 (2017), 064, 6 pages [ abs
pdf ]
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The Fock-Rosly Poisson Structure as Defined by a Quasi-Triangular $r$-Matrix
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Victor Mouquin
SIGMA 13 (2017), 063, 13 pages [ abs
pdf ]
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Part III, Free Actions of Compact Quantum Groups on ${\rm C}^*$-Algebras
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Kay Schwieger and Stefan Wagner
SIGMA 13 (2017), 062, 19 pages [ abs
pdf ]
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An Energy Gap for Complex Yang-Mills Equations
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Teng Huang
SIGMA 13 (2017), 061, 15 pages [ abs
pdf ]
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Integrability, Quantization and Moduli Spaces of Curves
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Paolo Rossi
SIGMA 13 (2017), 060, 29 pages [ abs
pdf ]
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Remarks on Contact and Jacobi Geometry
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Andrew James Bruce, Katarzyna Grabowska and Janusz Grabowski
SIGMA 13 (2017), 059, 22 pages [ abs
pdf ]
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Relativistic DNLS and Kaup-Newell Hierarchy
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Oktay K. Pashaev and Jyh-Hao Lee
SIGMA 13 (2017), 058, 13 pages [ abs
pdf ]
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On Reductions of the Hirota-Miwa Equation
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Andrew N.W. Hone, Theodoros E. Kouloukas and Chloe Ward
SIGMA 13 (2017), 057, 17 pages [ abs
pdf ]
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Zero Range Process and Multi-Dimensional Random Walks
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Nicolay M. Bogoliubov and Cyril Malyshev
SIGMA 13 (2017), 056, 14 pages [ abs
pdf ]
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Global Existence of Bi-Hamiltonian Structures on Orientable Three-Dimensional Manifolds
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Melike Işim Efe and Ender Abadoğlu
SIGMA 13 (2017), 055, 17 pages [ abs
pdf ]
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Topological Phase Transition in a Molecular Hamiltonian with Symmetry and Pseudo-Symmetry, Studied through Quantum, Semi-Quantum and Classical Models
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Guillaume Dhont, Toshihiro Iwai and Boris Zhilinskií
SIGMA 13 (2017), 054, 34 pages [ abs
pdf ]
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Symmetries of the Hirota Difference Equation
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Andrei K. Pogrebkov
SIGMA 13 (2017), 053, 14 pages [ abs
pdf ]
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A Combinatorial Study on Quiver Varieties
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Shigeyuki Fujii and Satoshi Minabe
SIGMA 13 (2017), 052, 28 pages [ abs
pdf ]
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Self-Dual Systems, their Symmetries and Reductions to the Bogoyavlensky Lattice
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Allan P. Fordy and Pavlos Xenitidis
SIGMA 13 (2017), 051, 10 pages [ abs
pdf ]
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Topology of Functions with Isolated Critical Points on the Boundary of a 2-Dimensional Manifold
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Bohdana I. Hladysh and Aleksandr O. Prishlyak
SIGMA 13 (2017), 050, 17 pages [ abs
pdf ]
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On the Spectra of Real and Complex Lamé Operators
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William A. Haese-Hill, Martin A. Hallnäs and Alexander P. Veselov
SIGMA 13 (2017), 049, 23 pages [ abs
pdf ]
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Equivariant Gromov-Witten Invariants of Algebraic GKM Manifolds
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Chiu-Chu Melissa Liu and Artan Sheshman
SIGMA 13 (2017), 048, 21 pages [ abs
pdf ]
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Check-Operators and Quantum Spectral Curves
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Andrei Mironov and Alexei Morozov
SIGMA 13 (2017), 047, 17 pages [ abs
pdf ]
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The Malgrange Form and Fredholm Determinants
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Marco Bertola
SIGMA 13 (2017), 046, 12 pages [ abs
pdf ]
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Hodge Numbers from Picard-Fuchs Equations
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Charles F. Doran, Andrew Harder and Alan Thompson
SIGMA 13 (2017), 045, 23 pages [ abs
pdf ]
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Integrable Structure of Multispecies Zero Range Process
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Atsuo Kuniba, Masato Okado and Satoshi Watanabe
SIGMA 13 (2017), 044, 29 pages [ abs
pdf ]
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Highest $\ell$-Weight Representations and Functional Relations
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Khazret S. Nirov and Alexander V. Razumov
SIGMA 13 (2017), 043, 31 pages [ abs
pdf ]
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On the Equivalence of Module Categories over a Group-Theoretical Fusion Category
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Sonia Natale
SIGMA 13 (2017), 042, 9 pages [ abs
pdf ]
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Non-Commutative Vector Bundles for Non-Unital Algebras
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Adam Rennie and Aidan Sims
SIGMA 13 (2017), 041, 12 pages [ abs
pdf ]
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A Linear System of Differential Equations Related to Vector-Valued Jack Polynomials on the Torus
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Charles F. Dunkl
SIGMA 13 (2017), 040, 41 pages [ abs
pdf ]
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Factor Ordering and Path Integral Measure for Quantum Gravity in (1+1) Dimensions
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John Haga and Rachel Lash Maitra
SIGMA 13 (2017), 039, 19 pages [ abs
pdf ]
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Mendeleev Table: a Proof of Madelung Rule and Atomic Tietz Potential
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Eugene D. Belokolos
SIGMA 13 (2017), 038, 15 pages [ abs
pdf ]
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Gustafson-Rakha-Type Elliptic Hypergeometric Series
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Hjalmar Rosengren
SIGMA 13 (2017), 037, 11 pages [ abs
pdf ]
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Darboux and Binary Darboux Transformations for Discrete Integrable Systems. II. Discrete Potential mKdV Equation
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Ying Shi, Jonathan Nimmo and Junxiao Zhao
SIGMA 13 (2017), 036, 18 pages [ abs
pdf ]
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Liouville Correspondences between Integrable Hierarchies
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Jing Kang, Xiaochuan Liu, Peter J. Olver and Changzheng Qu
SIGMA 13 (2017), 035, 26 pages [ abs
pdf ]
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Formal Integrals and Noether Operators of Nonlinear Hyperbolic Partial Differential Systems Admitting a Rich Set of Symmetries
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Sergey Ya. Startsev
SIGMA 13 (2017), 034, 20 pages [ abs
pdf ]
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Contact Isotropic Realisations of Jacobi Manifolds via Spencer Operators
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María Amelia Salazar and Daniele Sepe
SIGMA 13 (2017), 033, 44 pages [ abs
pdf ]
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Local Generalized Symmetries and Locally Symmetric Parabolic Geometries
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Jan Gregorovič and Lenka Zalabová
SIGMA 13 (2017), 032, 33 pages [ abs
pdf ]
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Zamolodchikov Tetrahedral Equation and Higher Hamiltonians of $2d$ Quantum Integrable Systems
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Dmitry V. Talalaev
SIGMA 13 (2017), 031, 14 pages [ abs
pdf ]
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GKZ Hypergeometric Series for the Hesse Pencil, Chain Integrals and Orbifold Singularities
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Jie Zhou
SIGMA 13 (2017), 030, 32 pages [ abs
pdf ]
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Isomonodromy for the Degenerate Fifth Painlevé Equation
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Primitivo B. Acosta-Humánez, Marius van der Put and Jaap Top
SIGMA 13 (2017), 029, 14 pages [ abs
pdf ]
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A Complete Set of Invariants for LU-Equivalence of Density Operators
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Jacob Turner and Jason Morton
SIGMA 13 (2017), 028, 20 pages [ abs
pdf ]
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Rigidity and Vanishing Theorems for Almost Even-Clifford Hermitian Manifolds
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Ana Lucia Garcia-Pulido and Rafael Herrera
SIGMA 13 (2017), 027, 28 pages [ abs
pdf ]
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Another Approach to Juhl's Conformally Covariant Differential Operators from $S^n$ to $S^{n-1}$
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Jean-Louis Clerc
SIGMA 13 (2017), 026, 18 pages [ abs
pdf ]
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Multi-Poisson Approach to the Painlevé Equations: from the Isospectral Deformation to the Isomonodromic Deformation
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Hayato Chiba
SIGMA 13 (2017), 025, 27 pages [ abs
pdf ]
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Doran-Harder-Thompson Conjecture via SYZ Mirror Symmetry: Elliptic Curves
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Atsushi Kanazawa
SIGMA 13 (2017), 024, 13 pages [ abs
pdf ]
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On Toric Poisson Structures of Type $(1,1)$ and their Cohomology
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Arlo Caine and Berit Nilsen Givens
SIGMA 13 (2017), 023, 16 pages [ abs
pdf ]
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$G$-Invariant Deformations of Almost-Coupling Poisson Structures
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José Antonio Vallejo and Yury Vorobiev
SIGMA 13 (2017), 022, 13 pages [ abs
pdf ]
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Central Configurations and Mutual Differences
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D.L. Ferrario
SIGMA 13 (2017), 021, 11 pages [ abs
pdf ]
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Simplified Expressions of the Multi-Indexed Laguerre and Jacobi Polynomials
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Satoru Odake and Ryu Sasaki
SIGMA 13 (2017), 020, 10 pages [ abs
pdf ]
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Lagrangian Mechanics and Reduction on Fibered Manifolds
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Songhao Li, Ari Stern and Xiang Tang
SIGMA 13 (2017), 019, 26 pages [ abs
pdf ]
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Ermakov-Painlevé II Symmetry Reduction of a Korteweg Capillarity System
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Colin Rogers and Peter A. Clarkson
SIGMA 13 (2017), 018, 20 pages [ abs
pdf ]
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Klein's Fundamental 2-Form of Second Kind for the $C_{ab}$ Curves
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Joe Suzuki
SIGMA 13 (2017), 017, 13 pages [ abs
pdf ]
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Some Open Problems in Random Matrix Theory and the Theory of Integrable Systems. II
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Percy Deift
SIGMA 13 (2017), 016, 23 pages [ abs
pdf ]
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Bethe Vectors for Composite Models with $\mathfrak{gl}(2|1)$ and $\mathfrak{gl}(1|2)$ Supersymmetry
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Jan Fuksa
SIGMA 13 (2017), 015, 17 pages [ abs
pdf ]
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Twists on the Torus Equivariant under the 2-Dimensional Crystallographic Point Groups
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Kiyonori Gomi
SIGMA 13 (2017), 014, 38 pages [ abs
pdf ]
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Bôcher and Abstract Contractions of 2nd Order Quadratic Algebras
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Mauricio A. Escobar Ruiz, Ernest G. Kalnins, Willard Miller Jr. and Eyal Subag
SIGMA 13 (2017), 013, 38 pages [ abs
pdf ]
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Irregular Conformal States and Spectral Curve: Irregular Matrix Model Approach
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Chaiho Rim
SIGMA 13 (2017), 012, 23 pages [ abs
pdf ]
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Drinfeld J Presentation of Twisted Yangians
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Samuel Belliard and Vidas Regelskis
SIGMA 13 (2017), 011, 35 pages [ abs
pdf ]
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Classification of Multidimensional Darboux Transformations: First Order and Continued Type
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David Hobby and Ekaterina Shemyakova
SIGMA 13 (2017), 010, 20 pages [ abs
pdf ]
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$q$-Difference Kac-Schwarz Operators in Topological String Theory
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Kanehisa Takasaki and Toshio Nakatsu
SIGMA 13 (2017), 009, 28 pages [ abs
pdf ]
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Classical and Quantum Superintegrability of Stäckel Systems
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Maciej Błaszak and Krzysztof Marciniak
SIGMA 13 (2017), 008, 23 pages [ abs
pdf ]
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Connected Lie Groupoids are Internally Connected and Integral Complete in Synthetic Differential Geometry
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Matthew Burke
SIGMA 13 (2017), 007, 25 pages [ abs
pdf ]
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Spacetime-Free Approach to Quantum Theory and Effective Spacetime Structure
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Matti Raasakka
SIGMA 13 (2017), 006, 33 pages [ abs
pdf ]
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Twistor Geometry of Null Foliations in Complex Euclidean Space
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Arman Taghavi-Chabert
SIGMA 13 (2017), 005, 42 pages [ abs
pdf ]
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The Geometry of Almost Einstein $(2,3,5)$ Distributions
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Katja Sagerschnig and Travis Willse
SIGMA 13 (2017), 004, 56 pages [ abs
pdf ]
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The Profinite Dimensional Manifold Structure of Formal Solution Spaces of Formally Integrable PDEs
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Batu Güneysu and Markus J. Pflaum
SIGMA 13 (2017), 003, 44 pages [ abs
pdf ]
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Symmetries of the Space of Linear Symplectic Connections
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Daniel J.F. Fox
SIGMA 13 (2017), 002, 30 pages [ abs
pdf ]
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The Moments of the Hydrogen Atom by the Method of Brackets
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Ivan Gonzalez, Karen T. Kohl, Igor Kondrashuk, Victor H. Moll and Daniel Salinas
SIGMA 13 (2017), 001, 13 pages [ abs
pdf ]
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