Search Results - "Fornæss, John Erik"
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Weighted approximation in C
Published in Mathematische Zeitschrift (01-04-2020)“…We prove that if { φ j } j is a sequence of subharmonic functions which are increasing to some subharmonic function φ in C , then the union of all the weighted…”
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Dynamics of transcendental Hénon maps
Published in Mathematische annalen (08-02-2019)“…The dynamics of transcendental functions in the complex plane has received a significant amount of attention. In particular much is known about the description…”
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Henkin–Ramirez kernels
Published in Boletín de la Sociedad Matemática Mexicana (01-12-2023)“…I will survey Henkin–Ramirez reproducing kernels in the weakly pseudoconvex case. The literature is enormous and I will not try to be complete…”
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Strong localization of invariant metrics
Published in Mathematische annalen (2022)“…A quantitative version of strong localization of the Kobayashi, Azukawa and Sibony metrics, as well as of the squeezing function, near a plurisubharmonic peak…”
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Dynamics of transcendental Hénon maps-II
Published in Mathematische annalen (01-04-2023)“…Transcendental Hénon maps are the natural extensions of the well investigated complex polynomial Hénon maps to the much larger class of holomorphic…”
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A non-strictly pseudoconvex domain for which the squeezing function tends to 1 towards the boundary
Published in Pacific journal of mathematics (01-11-2018)Get full text
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Estimate of the squeezing function for a class of bounded domains
Published in Mathematische annalen (01-08-2018)“…We construct a class of bounded domains, on which the squeezing function is not uniformly bounded from below near a smooth and pseudoconvex boundary point…”
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On the boundary rigidity at strongly pseudoconvex points
Published in Mathematische Zeitschrift (01-02-2021)“…We prove a localized version of Burns–Krantz type boundary rigidity theorem at strongly pseudoconvex points for holomorphic self-maps of some bounded taut…”
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Comparison of invariant metrics and distances on strongly pseudoconvex domains and worm domains
Published in Mathematische Zeitschrift (01-08-2019)“…We prove that for a strongly pseudoconvex domain D ⊂ C n , the infinitesimal Carathéodory metric g C ( z , v ) and the infinitesimal Kobayashi metric g K ( z ,…”
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Flat Bundles Over Some Compact Complex Manifolds
Published in The Journal of geometric analysis (01-12-2020)“…We construct examples of flat fiber bundles over the Hopf surface such that the total spaces have no pseudoconvex neighborhood basis, admit a complete Kähler…”
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Backtracking New Q-Newton’s Method, Newton’s Flow, Voronoi’s Diagram and Stochastic Root Finding
Published in Complex analysis and operator theory (2024)“…A new variant of Newton’s method - named Backtracking New Q-Newton’s method (BNQN) - which has strong theoretical guarantee, is easy to implement, and has good…”
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Weighted $$L^2$$ Version of Mergelyan and Carleman Approximation
Published in The Journal of geometric analysis (01-04-2021)“…We study the density of polynomials in $$H^2(E,\varphi )$$ H 2 ( E , φ ) , the space of square integrable functions with respect to $$\mathrm{e}^{-\varphi…”
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Semiglobal Results for ∂̄ on a Complex Space with Arbitrary Singularities
Published in Proceedings of the American Mathematical Society (01-08-2005)“…We obtain some$L^2-results$for the$\bar\partial$operator on forms that vanish to high order on the singular set of a complex space…”
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A Domain with Non-plurisubharmonic Squeezing Function
Published in The Journal of geometric analysis (2018)“…We construct a strictly pseudoconvex domain with smooth boundary whose squeezing function is not plurisubharmonic…”
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Infinite Entropy for Transcendental Entire Functions with an Omitted Value
Published in Acta mathematica vietnamica (01-03-2020)“…We prove that entire transcendental holomorphic functions with an omitted value have infinite entropy. A proof for general transcendental entire functions will…”
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The range of holomorphic maps at boundary points
Published in Mathematische annalen (2014)“…We prove a boundary version of the open mapping theorem for holomorphic maps between strongly pseudoconvex domains. That is, we prove that the local image of a…”
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Riemann Surface Laminations with Singularities
Published in The Journal of geometric analysis (01-04-2008)“…In these introductory notes we give the basics of the theory of holomorphic foliations and laminations. The emphasis is on the theory of harmonic currents and…”
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Non-autonomous basins with uniform bounds are elliptic
Published in Proceedings of the American Mathematical Society (01-11-2016)“…We prove that a non-autonomous basin with bounds is an Oka manifold. A consequence is that it has an abundance of holomorphic maps from \mathbb{C}^m into it,…”
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Classification of Recurrent Domains for Holomorphic Maps on Complex Projective Spaces
Published in The Journal of geometric analysis (01-04-2014)“…We generalize the classification of recurrent domains for holomorphic maps on two-dimensional complex projective space given in Fornæss and Sibony (Math. Ann…”
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On a conjecture by Blocki and Zwonek
Published in Science China. Mathematics (01-06-2017)“…This paper gives a counterexample to a conjecture by Blocki and Zwonek on the area of sublevel sets of the Green's function…”
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