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研究生: 黎維邦
Li, Wei-Bang
論文名稱: 在漢諾以圖形上的雙體與單體-雙體模型
Dimer coverings and dimer-monomer model on the Tower of Hanoi graph
指導教授: 張書銓
Chang, Shu-Chiuan
學位類別: 博士
Doctor
系所名稱: 理學院 - 物理學系
Department of Physics
論文出版年: 2019
畢業學年度: 108
語文別: 中文
論文頁數: 68
中文關鍵詞: 單體單體-雙體
外文關鍵詞: Dimers, dimer-monomers, Tower of Hanoi graph, entropy, recursion relations, exact solution.
相關次數: 點閱:69下載:6
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  • 此論文中,我們表示出了在n階漢諾以圖形上雙體數N_d (n)及單體-雙體數M_d (n),其中N_d (n)維度d=2、3、4、5,M_d (n)維度d=3、4。當漢諾以圖形的頂點個數,記做v(n),為偶數時N_d (n)為最密堆積,但當頂點個數為奇數時,N_d (n)不可能為最密堆積,並允許最外層之其中一個頂點不被雙體佔據。S_(〖TH〗_d )及z_(〖TH〗_d )之entropy分別定義為lim┬(n→∞)⁡〖ln⁡〖N_d (n)〗⁄(v(n))〗、lim┬(n→∞)⁡〖ln⁡〖M_d (n)〗⁄(v(n))〗,我們分別求得S_(〖TH〗_d )及z_(〖TH〗_d )之上、下界。當計算的階數增加時,上、下界差值的會收斂趨近於零,並且雙體數N_d (n)的entropy在三維和五維、單體-雙體數M_d (n)的entropy在三維和四維時,均可精確至小數點下百位以上。但雙體數N_d (n)的entropy在四維時僅精確到小數點下第六位數。

    We present the number of dimer coverings N_d(n) and the number of dimer-monomers M_d(n) on the Tower of Hanoi graph TH_d(n) at stage n with dimension d equal to two, three, four and ve for N_d(n), and d equal to three and four for M_d(n). When the number of vertices, denoted as v(n), of the Tower of Hanoi graph is an even number, Nd(n) is the number of close-packed dimers. When the number of vertices is an odd number, no close-packed con gurations are possible and we allow one of the outmost vertices uncovered. The entropy of both S_TH_d and z_TH_d are, respectively, de ned as STHd = lim lnN_d(n)/v(n) and zTHd = lim lnM_d(n)/v. We get the upper bounds and the lower bounds for S_TH_d and z_TH_d , respectively. As the di erence between these bounds converges to zero as the calculated stage increases with d = 3; 5 for dimer coverings and with d = 3; 4 for dimer-monomers, the numerical value of both S_TH_d and z_TH_d can be evaluated with more than a hundred signi ficant fi gures accurate. But the dimer covering with d = 4 is merely evaluated with more than six signifi cant fi gures accurate.

    I. Abstract (p.1) II. Introduction (p.2) III. Preliminaries(p.4) IV. The number of dimer coverings on TH_d(n) with d=2,3,4,5 (p.6) A.TH_2(n) (p.6) B.TH_3(n) (p.9) C.TH_4(n) (p.17) D.TH_5(n) (p.22) V. The number of dimer-monomers on TH_d(n) with d=3,4 (p.26) A.TH_3(n) (p.26) B.TH_4(n) (p.43) VI. Summary (p.47) Appendix A Relation between alpha(n), beta(n), gamma(n), omega(n) dor z_TH3(n) of dimer- monomers (p.49) Appendix B The recursion relationship of f_4(n), g_4(n), h_4(n), t_4(n), s_4(n), u_4(n) for TH_4(n) in section V.B (p.53) References (p.66)

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