ISTA Research Explorer

Illya Koval

Graduate School Kaloshin Group

2 Publications

[2]

2026 | Published | Journal Article | IST-REx-ID: 14278 | |

Local strong Birkhoff conjecture and local spectral rigidity of almost every ellipse
I. Koval, Inventiones Mathematicae 244 (2026) 221–298.

[Published Version] View | Files available | DOI | arXiv

[1]

2024 | Published | Journal Article | IST-REx-ID: 17475 |

Exponentially many graphs are determined by their spectrum
I. Koval, M.A. Kwan, Quarterly Journal of Mathematics 75 (2024) 869–899.

[Published Version] View | Files available | DOI | WoS | arXiv

Grants

2 Publications

[2]

2026 | Published | Journal Article | IST-REx-ID: 14278 | |

Local strong Birkhoff conjecture and local spectral rigidity of almost every ellipse
I. Koval, Inventiones Mathematicae 244 (2026) 221–298.

[Published Version] View | Files available | DOI | arXiv

[1]

2024 | Published | Journal Article | IST-REx-ID: 17475 |

Exponentially many graphs are determined by their spectrum
I. Koval, M.A. Kwan, Quarterly Journal of Mathematics 75 (2024) 869–899.

[Published Version] View | Files available | DOI | WoS | arXiv