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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.03587 |
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| _version_ | 1866929750064234496 |
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| author | Chakraborty, Piyali Dutkay, Dorin Ervin Jorgensen, Palle E. T. |
| author_facet | Chakraborty, Piyali Dutkay, Dorin Ervin Jorgensen, Palle E. T. |
| contents | The purpose of the present paper is to address multiple aspects of the Fuglede question dealing (Fourier spectra vs geometry) with a variety of $L^2$ contexts where we make precise the interplay between the three sides of the question: (i) existence of orthogonal families of Fourier basis functions (and associated spectra) on the one hand, (ii) extensions of partial derivative operators, and (iii) geometry of the corresponding domains, stressing systems of translation-tiles. We emphasize an account of old and new developments since the original 1974-paper by Bent Fuglede where the co-authors and Steen Pedersen have contributed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03587 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fuglede's conjecture, differential operators and unitary groups of local translations Chakraborty, Piyali Dutkay, Dorin Ervin Jorgensen, Palle E. T. Functional Analysis 47E05, 42A16 The purpose of the present paper is to address multiple aspects of the Fuglede question dealing (Fourier spectra vs geometry) with a variety of $L^2$ contexts where we make precise the interplay between the three sides of the question: (i) existence of orthogonal families of Fourier basis functions (and associated spectra) on the one hand, (ii) extensions of partial derivative operators, and (iii) geometry of the corresponding domains, stressing systems of translation-tiles. We emphasize an account of old and new developments since the original 1974-paper by Bent Fuglede where the co-authors and Steen Pedersen have contributed. |
| title | Fuglede's conjecture, differential operators and unitary groups of local translations |
| topic | Functional Analysis 47E05, 42A16 |
| url | https://arxiv.org/abs/2410.03587 |