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博碩士論文 etd-0125113-161724 詳細資訊
Title page for etd-0125113-161724
論文名稱
Title
廣義三角函數及雙曲函數的專題研究
Topics on Generalized Trigonometric And Hyperbolic Functions
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
70
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2013-01-07
繳交日期
Date of Submission
2013-01-25
關鍵字
Keywords
半線性方程、Schauder 基底、Riesz 基底、伽瑪函數、廣義雙曲函數、廣義三角函數
half-linear equation, Schauder basis, Riesz basis, gamma function, generalized hyperbolic functions, Generalized trigonometric functions
統計
Statistics
本論文已被瀏覽 5779 次,被下載 521
The thesis/dissertation has been browsed 5779 times, has been downloaded 521 times.
中文摘要
這篇論文是延續陳惠瑜在2009年的碩士論文。在此,我們更為仔細地研究廣義正弦函數Sp 和廣義餘弦函數 Cp 。特別在 α> -1和 β>1-p 的條件下, 我們計算出兩不定積分 ∫_0^(πp/2) Sp (x)^α S'p (x)^β dx 和 ∫_0^(πp/2) C_p (x)^α |C'p (x)|^β dx 能以伽瑪函數的形式呈現。接著Binding [2]等人的工作,我們對函數列 {Sp (nπp x)} 在 L^2 (0,1) 空間組成 Riesz 基底和在 L^q (0,1) 空間 ( q>6/5 ) 組成 Schauder 基底給出一個簡單的證明。
另一方面,我們定義了廣義雙曲正弦函數 Sh_p 和廣義雙曲餘弦函數 Ch_p 如下:
x=∫_0^(Shp (x))(1+|t|^p)^(-1/p) dt 和 |x|=∫_1^Chp (x)(t^p-1)^(-1/p) dt
當p=2時,即為雙曲正弦函數和雙曲餘弦函數。我們列出了和上述定義等價的恆等式及相關的半線性方程式。再者,我們推導出兩個瑕積分,∫_0^∞ Sh_p (x)^α Sh^'p (x)^β dx 和 ∫_0^∞ Ch_p (x)^α Ch'_p (x)^β dx 分別在 α>-1,α+β<0 和 β>1-p,α+β<0的條件下,亦能以伽瑪函數的形式呈現。
Abstract
This thesis is a continuation of the master thesis of Hui-Yu Chen in 2009. We study the generalized sine functions Sp and generalized cosine functions Cp in more detail. In particular, we evaluate the definite integrals of ∫_0^(πp/2) Sp (x)^α S'p (x)^β dx and ∫_0^(πp/2) C_p (x)^α |C'p (x)|^β dx α> -1 and β>1-p in terms of gamma function. Following the work of Binding et al [2], we also give a proof that the sequence {Sp (nπp x)} form a Riesz basis in L^2(0,1) and a Schauder basis in L^q(0,1) for ( q>6/5 ) .
On the other hand, we define the generalized hyperbolic sine function Shp and generalized hyperbolic cosine function Chp as
x=∫_0^(Shp (x))(1+|t|^p)^(-1/p) dt and |x|=∫_1^Chp (x)(t^p-1)^(-1/p) dt
When p=2, they become the hyperbolic sine and cosine functions. We show that the definition is equivalent to the identity and the associated half-linear equation for each function. Furthermore we evaluate the improper integrals ∫_0^∞ Sh_p (x)^α Sh^'p (x)^β dx 和 ∫_0^∞ Ch_p (x)^α Ch'_p (x)^β dx ,α>-1,α+β<0 and β>1-p,α+β<0, again in terms of gamma functions.
目次 Table of Contents
1.Introduction........................................................................1
2.Integration of generalized trigonometric functions.....9
3.Generalized hyperbolic functions................................19
3.1 Generalized hyperbolic sine functions................19
3.2 Generalized hyperbolic cosine functions............24
3.3 Integration of generalized hyperbolic functions.34
3.4 Other generalized hyperbolic functions...............37
4. Basis properties of generalized sine functions......42
Appendices.........................................................................48
1 The gamma function.....................................................48
2 Table of properties of Sp(x), Cp(x), Shp(x) and Chp(x)...................................................................................53
3 The graph of πp, Shp(x) and Chp(x) ..........................55
參考文獻 References
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Analysis, John Wiley & Sons, Inc, 1992.
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the p-Laplacian, Proc. Amer. Math. Soc., Vol.134,
No.12, 2006,3487-3494.
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the radial p-Laplacian with a potential on (0,∞),
Journal of Computatinal and Applied Mathematics,
Vol.208, 2006, 111-119.
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and Applications, McGraw-Hill, Singapore, 2004.
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equation, Colloqia mathematica Societatis Jonos
Bolyai, 30, Qualitiative Theory of Differential
Equations, Szeged(Hungary), 1979.
10.G.B. Folland, Fourier Analysis and Its Applications,
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National Sun Yat-sen University, Kaohsiung,
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Fourier Series, Academic Press, New York, 1980.
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