Alexander Varchenko

• Singularities of Differentiable Mappings I, Classification of Critical Points and Wave Fronts (with V. Arnold and S. Gusein-Zade), Birkhauser, Boston, 1985.
• Singularities of Differentiable Mappings II, Monodromy and Asymptotics of Integrals (with V. Arnold and S. Gusein-Zade), Birkhauser, Boston, 1988.
• Why the Boundary of a Round Drop Becomes a Curve of Order Four (with P. Etingoff), Univ. Lecture Series, AMS, Providence, RI, 1992.
• Multidimensional Hypergeometric Functions and Representation Theory of Quantum Groups, World Scientific, Singapore, 1995.
• Geometry of q-Hypergeometric Functions, Quantum Affine Algebras, and Elliptic Quantum Groups, Asterisque #241, Soc. Math. de France, 1997.
• Special Functions, KZ Type Equations, and Representation Theory, CBMS Reg. Conf. Ser. #98, AMS, Providence, RI, 2003.