The resolvent equations for the Harmonic and bi-Harmonic functional calculi in dimension five
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866908889527615488 |
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| author | Colombo, Fabrizio De Martino, Antonino Da Costa, Joao Marques |
| author_facet | Colombo, Fabrizio De Martino, Antonino Da Costa, Joao Marques |
| contents | The fine structures on the $S$-spectrum constitute a new research area that includes a class of functional calculi based on the $S$-spectrum and on integral transforms determined by the Fueter--Sce mapping theorem and the Cauchy formula for slice hyperholomorphic functions.
This strategy, based on integral transforms, allows us to construct functional calculi that include harmonic and polyharmonic functional calculi. The resolvent operators in this setting do not arise directly from a Cauchy kernel, but rather from suitable manipulations of it. For this reason the corresponding resolvent equations differ substantially from those associated with the classical Cauchy kernel. In this paper, we investigate the harmonic and biharmonic resolvent equations in dimension five, as well as the corresponding product rules and Riesz projectors for these functional calculi. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_15349 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The resolvent equations for the Harmonic and bi-Harmonic functional calculi in dimension five Colombo, Fabrizio De Martino, Antonino Da Costa, Joao Marques Functional Analysis The fine structures on the $S$-spectrum constitute a new research area that includes a class of functional calculi based on the $S$-spectrum and on integral transforms determined by the Fueter--Sce mapping theorem and the Cauchy formula for slice hyperholomorphic functions. This strategy, based on integral transforms, allows us to construct functional calculi that include harmonic and polyharmonic functional calculi. The resolvent operators in this setting do not arise directly from a Cauchy kernel, but rather from suitable manipulations of it. For this reason the corresponding resolvent equations differ substantially from those associated with the classical Cauchy kernel. In this paper, we investigate the harmonic and biharmonic resolvent equations in dimension five, as well as the corresponding product rules and Riesz projectors for these functional calculi. |
| title | The resolvent equations for the Harmonic and bi-Harmonic functional calculi in dimension five |
| topic | Functional Analysis |
| url | https://arxiv.org/abs/2603.15349 |