Microlocal analysis of constructible functions and their applications to singularity theory

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We studied monodromy zeta functions of Milnor fibers of Varchenko type and Jordan normal forms of monodromy of Milnor fibers by using the nearby cycle functor of constructible sheaves. For non-degenerate polynomials on affine toric varieties, we obtained similar results to classical ones. We also studied Euler obstructions of toric varieties and degree formulas for A-discriminats as applications of our results and monodromy at infinity.