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 Special Issue on Representation Theory and Integrable Systems in honor of Vitaly Tarasov on the 60th birthday and Alexander Varchenko on the 70th birthday
The Guest Editors for this special issue are
 
 Pavel Etingof (Massachusetts Institute of Technology, USA)
 Giovanni Felder (ETH Zürich, Switzerland)
 Evgeny Mukhin (Indiana University - Purdue University Indianapolis, USA)
 
 
This special issue of SIGMA is created in honor of Vitaly Tarasov on his 60th birthday and  Alexander Varchenko on his 70th birthday, to celebrate their outstanding contribution to mathematics and mathematical physics.
 
The volume consists of 13 papers for a total of 338 pages covering a wide range of topics in geometry, representation theory, and integrable systems.
 
We are grateful to all the authors who contributed to this volume and to the referees for providing constructive reviews. Many of the papers were reported at the corresponding conference held at ETH in Zurich, August 12–18, 2019. We thank all the speakers and the participants for contributing to the success of the conference.
 
The Guest Editors        
 
  
Papers in this Issue:
 
- 
An Introduction to Motivic Feynman Integrals
 
- 
Claudia Rella
 SIGMA 17 (2021), 032, 56 pages   [ abs  
pdf ]
 
 
- 
Twisted Traces and Positive Forms on Quantized Kleinian Singularities of Type A
 
- 
Pavel Etingof, Daniil Klyuev, Eric Rains and Douglas Stryker
 SIGMA 17 (2021), 029, 31 pages   [ abs  
pdf ]
 
 
- 
Quantum K-Theory of Grassmannians  and Non-Abelian Localization
 
- 
Alexander Givental and Xiaohan Yan
 SIGMA 17 (2021), 018, 24 pages   [ abs  
pdf ]
 
 
- 
Harmonic Analysis in $d$-Dimensional Superconformal Field Theory
 
- 
Ilija Burić
 SIGMA 17 (2021), 007, 38 pages   [ abs  
pdf ]
 
 
- 
Quantum Groups for Restricted SOS Models
 
- 
Giovanni Felder and Muze Ren
 SIGMA 17 (2021), 005, 26 pages   [ abs  
pdf ]
 
 
- 
With Wronskian through the Looking Glass
 
- 
Vassily Gorbounov and Vadim Schechtman
 SIGMA 17 (2021), 001, 26 pages   [ abs  
pdf ]
 
 
- 
Representations of Quantum Affine Algebras in their $R$-Matrix Realization
 
- 
Naihuan Jing, Ming Liu and Alexander Molev
 SIGMA 16 (2020), 145, 25 pages   [ abs  
pdf ]
 
 
- 
Extension Quiver for Lie Superalgebra $\mathfrak{q}(3)$
 
- 
Nikolay Grantcharov and Vera Serganova
 SIGMA 16 (2020), 141, 32 pages   [ abs  
pdf ]
 
 
- 
Perfect Integrability and Gaudin Models
 
- 
Kang Lu
 SIGMA 16 (2020), 132, 10 pages   [ abs  
pdf ]
 
 
- 
Yangian of the General Linear Lie Superalgebra
 
- 
Maxim Nazarov
 SIGMA 16 (2020), 112, 24 pages   [ abs  
pdf ]
 
 
- 
Duality for Knizhnik-Zamolodchikov and Dynamical Operators
 
- 
Vitaly Tarasov and Filipp Uvarov
 SIGMA 16 (2020), 035, 10 pages   [ abs  
pdf ]
 
 
- 
Three-Dimensional Mirror Self-Symmetry of the Cotangent Bundle of the Full Flag Variety
 
- 
Richárd Rimányi, Andrey Smirnov, Alexander Varchenko and Zijun Zhou
 SIGMA 15 (2019), 093, 22 pages   [ abs  
pdf ]
 
 
- 
Multiparameter Schur $Q$-Functions Are Solutions of the BKP Hierarchy
 
- 
Natasha Rozhkovskaya
 SIGMA 15 (2019), 065, 14 pages   [ abs  
pdf ]
 
 
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