Studying Legendrian Invariants with FrontLeg

نویسنده

  • Shaowei Lin
چکیده

The Chekanov-Eliashberg DGA is a powerful tool for helping us to decide if two Legendrian knots are Legendrian isotopic. However, computing it can be an extremely tedious task. FrontLeg is a program created to automate these calculations. In this paper, we examine the algorithm for constructing the DGA and its Poincaré polynomials. We also describe the design, structure and functionalities of FrontLeg, and give suggestions for extension and research.

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تاریخ انتشار 2005