### Abstract

This is a continuation of Ikoma and Ishii (Ann Inst H Poincaré Anal Non Linéaire 29:783–812, 2012) and we study the eigenvalue problem for fully nonlinear elliptic operators, positively homogeneous of degree one, on finite intervals or balls. In the multi-dimensional case, we consider only radial eigenpairs. Our eigenvalue problem has a general first-order boundary condition which includes, as a special case, the Dirichlet, Neumann and Robin boundary conditions. Given a nonnegative integer n, we prove the existence and uniqueness, modulo multiplication of the eigenfunction by a positive constant, of an eigenpair whose eigenfunction, as a radial function in the multi-dimensional case, has exactly n zeroes. When an eigenfunction has n zeroes, we call the corresponding eigenvalue of nth order. Furthermore, we establish results concerning comparison of two eigenvalues, characterizations of nth order eigenvalues via differential inequalities, the maximum principle for the boundary value problem in connection with the principal eigenvalue, and existence of a solution having n zeroes, as a radial function in the multi-dimensional case, of the boundary value problem with an inhomogeneous term.

Original language | English |
---|---|

Pages (from-to) | 451-510 |

Number of pages | 60 |

Journal | Bulletin of Mathematical Sciences |

Volume | 5 |

Issue number | 3 |

DOIs | |

Publication status | Published - 2015 Oct 1 |

### Fingerprint

### Keywords

- Eigenvalue problem
- Fully nonlinear equation
- General boundary conditions
- Higher order eigenvalues
- Principal eigenvalues

### ASJC Scopus subject areas

- Mathematics(all)

### Cite this

*Bulletin of Mathematical Sciences*,

*5*(3), 451-510. https://doi.org/10.1007/s13373-015-0071-0

**Eigenvalue problem for fully nonlinear second-order elliptic PDE on balls, II.** / Ikoma, Norihisa; Ishii, Hitoshi.

Research output: Contribution to journal › Article

*Bulletin of Mathematical Sciences*, vol. 5, no. 3, pp. 451-510. https://doi.org/10.1007/s13373-015-0071-0

}

TY - JOUR

T1 - Eigenvalue problem for fully nonlinear second-order elliptic PDE on balls, II

AU - Ikoma, Norihisa

AU - Ishii, Hitoshi

PY - 2015/10/1

Y1 - 2015/10/1

N2 - This is a continuation of Ikoma and Ishii (Ann Inst H Poincaré Anal Non Linéaire 29:783–812, 2012) and we study the eigenvalue problem for fully nonlinear elliptic operators, positively homogeneous of degree one, on finite intervals or balls. In the multi-dimensional case, we consider only radial eigenpairs. Our eigenvalue problem has a general first-order boundary condition which includes, as a special case, the Dirichlet, Neumann and Robin boundary conditions. Given a nonnegative integer n, we prove the existence and uniqueness, modulo multiplication of the eigenfunction by a positive constant, of an eigenpair whose eigenfunction, as a radial function in the multi-dimensional case, has exactly n zeroes. When an eigenfunction has n zeroes, we call the corresponding eigenvalue of nth order. Furthermore, we establish results concerning comparison of two eigenvalues, characterizations of nth order eigenvalues via differential inequalities, the maximum principle for the boundary value problem in connection with the principal eigenvalue, and existence of a solution having n zeroes, as a radial function in the multi-dimensional case, of the boundary value problem with an inhomogeneous term.

AB - This is a continuation of Ikoma and Ishii (Ann Inst H Poincaré Anal Non Linéaire 29:783–812, 2012) and we study the eigenvalue problem for fully nonlinear elliptic operators, positively homogeneous of degree one, on finite intervals or balls. In the multi-dimensional case, we consider only radial eigenpairs. Our eigenvalue problem has a general first-order boundary condition which includes, as a special case, the Dirichlet, Neumann and Robin boundary conditions. Given a nonnegative integer n, we prove the existence and uniqueness, modulo multiplication of the eigenfunction by a positive constant, of an eigenpair whose eigenfunction, as a radial function in the multi-dimensional case, has exactly n zeroes. When an eigenfunction has n zeroes, we call the corresponding eigenvalue of nth order. Furthermore, we establish results concerning comparison of two eigenvalues, characterizations of nth order eigenvalues via differential inequalities, the maximum principle for the boundary value problem in connection with the principal eigenvalue, and existence of a solution having n zeroes, as a radial function in the multi-dimensional case, of the boundary value problem with an inhomogeneous term.

KW - Eigenvalue problem

KW - Fully nonlinear equation

KW - General boundary conditions

KW - Higher order eigenvalues

KW - Principal eigenvalues

UR - http://www.scopus.com/inward/record.url?scp=84947921371&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84947921371&partnerID=8YFLogxK

U2 - 10.1007/s13373-015-0071-0

DO - 10.1007/s13373-015-0071-0

M3 - Article

VL - 5

SP - 451

EP - 510

JO - Bulletin of Mathematical Sciences

JF - Bulletin of Mathematical Sciences

SN - 1664-3607

IS - 3

ER -