# lame equation

• ### Lame equation quantum top and elliptic

2017-3-10 · LAME EQUATION QUANTUM TOP AND ELLIPTIC´ BERNOULLI POLYNOMIALS M-P. GROSSET AND A.P. VESELOV Abstract. A generalisation of the odd Bernoulli polynomials related to the quantum Euler top is introduced and investigated. This is applied to compute the coeﬃcients of the spectral polynomials for the classical Lam´e operator. 1. Introduction

• ### number theoryWhat was Lame s proof Mathematics

2014-10-1 · 17. In 1847 Lame gave a false proof of Fermat s Last Theorem by assuming that Z r is a UFD where r is a primitive p th root of unity. The best description I ve found is in the book Fermat s Last Theorem A Genetic Introduction to Algebraic Number Theory. For the equation x n y n = z n it says.

• ### Algebraic Solutions of the Lame´ Equation Revisited

2011-11-30 · The equation has four regular singular points three has exponents)have characteristic exponents and one of which ( ) .Sothe algebraic-form Lam´e equation is a special case of the Heun equation which is the general second-order Fuchsian equation on with four singular points. Via the map the line is doubly covered by the elliptic curve

• ### Algebraic Solutions of the Lame´ Equation Revisited

2011-11-30 · The Lam´eequation is a second-order Fuchsian differential equation. It may be writ-ten     where     is the Lam´eoperator with complex parametersand .Theﬁrst

• ### Lame´equationswithalgebraicsolutionsCORE

2017-1-28 · 1=2AZ In this case logarithmic solutions of the Lame´equation at N may arise sincen þ 1=2AZ isthelocalexponentdifferenceatN Thereisalwaysalogarithmic solutionwhenn ¼ 1=2 Theorem 2.2 (Brioschi–Halphen). Suppose n þ1=2AZX0 Then there exists p nAZ½g 2=4g 3=4B of degree n þ 1=2 in B such that L nBy ¼ 0 has no logarithmic

• ### Lame equation quantum top and elliptic

2017-3-10 · LAME EQUATION QUANTUM TOP AND ELLIPTIC´ BERNOULLI POLYNOMIALS M-P. GROSSET AND A.P. VESELOV Abstract. A generalisation of the odd Bernoulli polynomials related to the quantum Euler top is introduced and investigated. This is applied to compute the coeﬃcients of the spectral polynomials for the classical Lam´e operator. 1. Introduction

• ### Solving the Navier-Lamé Equation in Cylindrical

Solving the Navier-Lamé Equation in Cylindrical Coordinates Using the Buchwald Representation Some Parametric Solutions with Applications . Jamal Sakhr Blaine A. Chronik. DOI 10.4208/aamm.OA-2017-0203. Adv. Appl. Math. Mech. 10 (2018) pp. 1025-1056. Published online 2018-07

• ### Simplified Lamé s equations to determine contact pressure

A simplification of Lamé s equation to determine radial and hoop stress due to interference on press-fits is introduced. The two novel simplified equations introduced in this paper provide a method to quickly and accurately calculate the contact pressure (radial stress) and hoop stress between two contacting surfaces with alike material properties.

• ### Lame´equationswithalgebraicsolutionsCORE

2017-1-28 · 2. The Lame´ equation The Lame´equation with nAQ and g 2g 3BAC as parameters is the differential equation pðzÞ d2y dz2 þ 1 2 p0ðzÞ dy dz ð nðn þ1Þz þ BÞy ¼ 0 ð2Þ ARTICLE IN PRESS 4 F. Beukers A. van der Waall / J. Differential Equations 197 (2004) 1–25

• ### Lame s Equation Maths Problem Physics Forums

2015-1-19 · Lame s Equation Maths Problem Thread starter Jud Start date Jan 18 2015 Tags stress Jan 18 2015 #1 Jud. 12 0. Homework Statement A steel pipe is 200mm internal diameter and 20mm thick. Calculate the safe internal pressure if the allowable stress is

• ### On computing eigenvalues of Lamé equation and zeros of

2015-4-1 · Erdéryi et al. and Jansen have investigated matrix methods for computing eigenvalues of Lamé equation. Eigenvalue problems of infinite symmetric tridiagonal matrices are considered where the matrix itself is NOT compact and its inverse is compact in Hilbert space ℓ 2 with their diagonal and super- and sub-diagonal elements diverging.

• ### Studies in Lame s equation rrey Research Insight Open

Lame s differential equation arises when the wave equation is separated in ellipsoidal or sphero-conal coordinates. Throughout the work which follows Lame s equation has been used exclusively in its Jacobian elliptic form. Chapter I of Part 1 extends the knowledge of integral relations involving Lame functions of the first and second kinds.

• ### An Application of the Lamé Equation SpringerLink

Publisher Name Birkhäuser Basel. Print ISBN 978-3-0348-9741-9. Online ISBN 978-3-0348-8718-2. eBook Packages Springer Book Archive. Buy this book on publisher s site. Reprints and Permissions. Personalised recommendations. An Application of the Lamé Equation. Cite chapter.

• ### Lame EquationPipeng Toolbox

Lame s equation accounts for the variation in stress with radius. The stress distribution is not uniform across the pipe section. The maximum stress occurs on the inside of the pipe. Barlow s equation is often used to calculate the hoop stress in thin wall pipes where the stress can be assumed to be uniformly distributed. Lame s equation should

• ### Complete study for solving Navier-Lame equation´ with

2018-5-22 · 2is the identity matrix is the shear modulus (or rigidity) where is Lam s ﬁrst parameter. Navier Lam´e equation is given by the law of conservation moment ˆa= div˙with a is the acceleration and ˆis the density of material On the other hand div˙= div(tr(")I. 2) 2 div" (3) then we have div˙= div (tr" )I.

• ### Stress for Thick Walled Cylinders using Lamé s Equations

The general equations to calculate the stresses are Hoop Stress (1) Radial Stress (2) From a thick-walled cylinder we get the boundary conditions at and at. Applying these boundary conditions to the above simultaneous equations gives us the following equations for the constants A B (3)

• ### Simple-periodic and non-periodic Lamé functions and

of the Lame differential equation with non-periodicboundary conditions. In this work however we show that they are connected with the periodic solu­ tions of the Lame equation. We observe the same phenomenon in the case of the solutions of the Mathieu equation by separating the Helmholtz equation in the elliptic-cylinder coordinates.

• ### DLMF 29 Lamé Functions

2021-6-17 · Chapter 29. Lamé Functions. H. Volkmer Department of Mathematical Sciences University of Wisconsin–Milwaukee Milwaukee Wisconsin. The main references used in writing this chapter are Arscott ( 1964b) Erdélyi et al. ( 1955) Ince ( 1940b) and Jansen ( 1977) . For additional bibliographic reading see Hobson ( 1931) Strutt ( 1932) and

• ### Lame s Equation Scientific

Home Lame s Equation. Papers by Keyword Lame s Equation. Paper Title Page. Elasto-Plastic Stress Analysis of Thick Cylinders. Authors A. Mohan T. Christopher Abstract Pressure vessels often have a combination of high pressure together with high temperature such as gun barrels and high pressure hydraulic rams. For high pressure

• ### Lamé equationEncyclopedia of Mathematics

2020-6-5 · Lamé equation. From Encyclopedia of Mathematics. Jump to navigation search. A linear ordinary second-order differential equation in the complex domain. (1) d 2 w d z 2 = A B p ( z) w where p ( z) is the Weierstrass pfunction and A and B are constants.

• The Lamé wave equation. Fedoryuk M. V. Abstract. CONTENTS § 1. Introduction § 2. The Lamé wave functions § 3. Asymptotics of solutions of the Lamé wave equation in the complex plane § 4. Asymptotics of the spectrum and the Lamé wave functions References. Publication

• ### Lame equation quantum top and elliptic

2017-3-10 · LAME EQUATION QUANTUM TOP AND ELLIPTIC´ BERNOULLI POLYNOMIALS M-P. GROSSET AND A.P. VESELOV Abstract. A generalisation of the odd Bernoulli polynomials related to the quantum Euler top is introduced and investigated. This is applied to compute the coeﬃcients of the spectral polynomials for the classical Lam´e operator. 1. Introduction

• ### Studies in Lame s equation rrey Research Insight Open

Lame s differential equation arises when the wave equation is separated in ellipsoidal or sphero-conal coordinates. Throughout the work which follows Lame s equation has been used exclusively in its Jacobian elliptic form. Chapter I of Part 1 extends the knowledge of integral relations involving Lame functions of the first and second kinds.

• ### Simple-periodic and non-periodic Lamé functions and

of the Lame differential equation with non-periodicboundary conditions. In this work however we show that they are connected with the periodic solu­ tions of the Lame equation. We observe the same phenomenon in the case of the solutions of the Mathieu equation by separating the Helmholtz equation in the elliptic-cylinder coordinates.

• ### Lame´equationswithalgebraicsolutionsCORE

2017-1-28 · 2. The Lame´ equation The Lame´equation with nAQ and g 2g 3BAC as parameters is the differential equation pðzÞ d2y dz2 þ 1 2 p0ðzÞ dy dz ð nðn þ1Þz þ BÞy ¼ 0 ð2Þ ARTICLE IN PRESS 4 F. Beukers A. van der Waall / J. Differential Equations 197 (2004) 1–25

• ### Simple-periodic and non-periodic Lamé functions and

of the Lame differential equation with non-periodicboundary conditions. In this work however we show that they are connected with the periodic solu­ tions of the Lame equation. We observe the same phenomenon in the case of the solutions of the Mathieu equation by separating the Helmholtz equation in the elliptic-cylinder coordinates.

• ### 2009.00840 The geometry of generalized Lame equation

2020-9-2 · Download PDF Abstract In this paper the third in a series we continue to study the generalized Lamé equation H (n_0 n_1 n_2 n_3B) with the Darboux-Treibich-Verdier potential begin equation y prime prime (z)=bigg sum_ k=0 3 n_ k (n_ k 1)wp(z tfrac omega_ k 2 tau) Bbigg y(z) quad n_ k in mathbb Z _ geq0 end equation and a related

• ### Lamé s Differential Equation -- from Wolfram MathWorld

2021-7-15 · Lamé s Differential Equation. The ordinary differential equation. (1) (Byerly 1959 p. 255). The solution is denoted and is known as an ellipsoidal harmonic of the first kind or Lamé function. Whittaker and Watson (1990 pp. 554-555) give the alternative forms.

• ### 1303.0873 Lame equation in the algebraic formarXiv

2013-3-4 · Lame equation arises from deriving Laplace equation in ellipsoidal coordinates in other words it s called ellipsoidal harmonic equation. Lame functions are applicable to diverse areas such as boundary value problems in ellipsoidal geometry chaotic Hamiltonian systems the theory of Bose-Einstein condensates etc. In this paper I will apply three term recurrence formula arXiv 1303.0806 to

• ### Algebraic Solutions of the Lame´ Equation Revisited

2011-11-30 · The equation has four regular singular points three has exponents)have characteristic exponents and one of which ( ) .Sothe algebraic-form Lam´e equation is a special case of the Heun equation which is the general second-order Fuchsian equation on with four singular points. Via the map the line is doubly covered by the elliptic curve

• ### Lamé s Differential Equation -- from Wolfram MathWorld

2021-7-15 · Lamé s Differential Equation. The ordinary differential equation. (1) (Byerly 1959 p. 255). The solution is denoted and is known as an ellipsoidal harmonic of the first kind or Lamé function. Whittaker and Watson (1990 pp. 554-555) give the alternative forms.

• ### Lame s Equation Scientific

Home Lame s Equation. Papers by Keyword Lame s Equation. Paper Title Page. Elasto-Plastic Stress Analysis of Thick Cylinders. Authors A. Mohan T. Christopher Abstract Pressure vessels often have a combination of high pressure together with high temperature such as gun barrels and high pressure hydraulic rams. For high pressure

• ### lame equationMath and PhysicsGameDev

2015-12-21 · lame equation Math and Physics Programming. Started by _WeirdCat_ December 21 2015 12 14 PM. 6 comments last by Nanoha 5 years 6 months ago Advertisement. _WeirdCat_ Author. 1 512 December 21 2015 12 14 PM. I want to set my day change every x minutes (lets say its 7 minutes) (new day every x minutes)

• ### Simplified Lamé s equations to determine contact pressure

A simplification of Lamé s equation to determine radial and hoop stress due to interference on press-fits is introduced. The two novel simplified equations introduced in this paper provide a method to quickly and accurately calculate the contact pressure (radial stress) and hoop stress between two contacting surfaces with alike material properties.

• ### DLMF 29 Lamé Functions

2021-6-17 · Chapter 29. Lamé Functions. H. Volkmer Department of Mathematical Sciences University of Wisconsin–Milwaukee Milwaukee Wisconsin. The main references used in writing this chapter are Arscott ( 1964b) Erdélyi et al. ( 1955) Ince ( 1940b) and Jansen ( 1977) . For additional bibliographic reading see Hobson ( 1931) Strutt ( 1932) and

• ### Lamé s Differential Equation -- from Wolfram MathWorld

2021-7-15 · Lamé s Differential Equation. The ordinary differential equation. (1) (Byerly 1959 p. 255). The solution is denoted and is known as an ellipsoidal harmonic of the first kind or Lamé function.

• The Lamé wave equation. Fedoryuk M. V. Abstract. CONTENTS § 1. Introduction § 2. The Lamé wave functions § 3. Asymptotics of solutions of the Lamé wave equation in the complex plane § 4. Asymptotics of the spectrum and the Lamé wave functions References. Publication

• ### An Application of the Lamé Equation SpringerLink

Very simple examples of Hamiltonian systems in two degrees of freedom lead to NVE of Lamé type equation (2.16) frac d 2 xi d t 2 = left ( Apleft (t right) B right)xi (6.1) where P denotes the Weierstrass function and A and B are in general complex parameters.

• ### 1303.0873 Lame equation in the algebraic formarXiv

2013-3-4 · Lame equation arises from deriving Laplace equation in ellipsoidal coordinates in other words it s called ellipsoidal harmonic equation. Lame functions are applicable to diverse areas such as boundary value problems in ellipsoidal geometry chaotic Hamiltonian systems the theory of Bose-Einstein condensates etc. In this paper I will apply three term recurrence formula arXiv 1303.0806 to

• ### Solving the Navier-Lamé Equation in Cylindrical

Solving the Navier-Lamé Equation in Cylindrical Coordinates Using the Buchwald Representation Some Parametric Solutions with Applications . Jamal Sakhr Blaine A. Chronik. DOI 10.4208/aamm.OA-2017-0203. Adv. Appl. Math. Mech. 10 (2018) pp. 1025-1056. Published online 2018-07