政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/95259
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    題名: 熱帶曲線之圖形化研究
    Visualization of Tropical Curves
    作者: 黃健維
    Huang, Chien-Wei
    貢獻者: 蔡炎龍
    Tsai Yen-Lung
    黃健維
    Huang Chien-Wei
    關鍵詞: 熱帶幾何
    曲線
    圖形化
    Tropical Geometry
    Curve
    Visualization
    日期: 2009
    上傳時間: 2016-05-09 15:27:35 (UTC+8)
    摘要: 熱帶曲線(tropical curves) 是定義在熱帶半環(tropical semiring) 上的代數曲線。熱帶曲線是古典代數曲線經由某些賦值(valuation) 的映像，所以許多重要的代數曲線性質也同樣發生在熱帶曲線上。本篇論文我們試著將熱帶曲線圖形化。
    首先，我們根據熱帶曲線的理論發展出幾個繪出熱帶曲線的演算法。再者，我們以電腦程式語言Python 去實現這些算演算法。我們發展的是跨平台的程式碼，可以在Linux, Mac OS X, Windows 等作業系統執行。
    Tropical curves are algebraic curves dened over the tropical semiring.
    They are the images of classical algebraic curves under some valuation maps, so reect many important properties of classical algebraic curves. In this thesis,
    we try to visualize tropical curves. We study the theory of tropical curves and develop several algorithms to draw the graphs of tropical curves.
    Furthermore, we implement these algorithms in Python programming language. These codes are cross-platform, running on Linux, Mac OS X, and Windows.
    1 Introduction... 1
    2 Plane tropical curves... 3
    2.1 Tropical curves as limit of amoebas... 3
    2.2 Tropical curves via varieties over the eld of Puiseux series... 6
    2.3 Tropical curves as varities over the max-plus semiring... 12
    3 Arithmetic of the max-plus semiring... 15
    4 Tropical polynomial... 18
    5 Curves... 26
    5.1 Hypersurface... 26
    5.2 Tropical curves as balanced graphs... 28
    6 Draw tropical curves by Python... 30
    參考文獻: [1] Andreas Gathmann. Tropical algebraic geometry. Jahresber. Deutsch. Math.-Verein., 108(1):3{32, 2006.
    [2] Lu-Pin Lin. Largest-coecient tropical polynomials and their applications.Master`s thesis, National Chengchi University, Taipei, Taiwan, 2009.
    [3] Grigory Mikhalkin. Amoebas of algebraic varieties and tropical geometry. In Di erent faces of geometry, volume 3 of Int. Math. Ser. (N. Y.), pages 257{300.Kluwer/Plenum, New York, 2004.
    [4] Grigory Mikhalkin. Tropical geometry and its applications. In International Congress of Mathematicians. Vol. II, pages 827{852. Eur. Math. Soc., Zurich, 2006.
    [5] Jurgen Richter-Gebert, Bernd Sturmfels, and Thorsten Theobald. First steps in tropical geometry. In Idempotent mathematics and mathematical physics, volume 377 of Contemp. Math., pages 289{317. Amer. Math. Soc., Providence,
    RI, 2005.48
    [6] David Speyer and Bernd Sturmfels. Tropical mathematics.
    arXiv.org:math/0408099, 2004.
    描述: 碩士
    國立政治大學
    應用數學系數學教學碩士在職專班
    96972014
    資料來源: http://thesis.lib.nccu.edu.tw/record/#G0096972014
    資料類型: thesis
    顯示於類別:[應用數學系] 學位論文

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