6,796 research outputs found

    Den sista stjärnan, op136, nro 1. Luonnos

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    Soitinnus: lauluääni, piano.Erkki Melartinin käsikirjoitusten luettelon tunnus SibA Mel 24: 828 (luettelo löytyy Taideyliopiston kirjaston verkkosivuilta).Ei vapaa, vapautuu 2038. Bo Bergman 1869-196

    Den sista stjärnan, op136, nro 1

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    Soitinnus: lauluääni, piano.Erkki Melartinin käsikirjoitusten luettelon tunnus SibA Mel 21:486 (luettelo löytyy Taideyliopiston kirjaston verkkosivuilta).Ei vapaa, vapautuu 2039. Bo Bergman: 1869-1968

    Genom tron talar han alltjämt. Aspekter på Bo Giertz författarskap

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    A previously printed summary of Bishop Bo Giertz as an author

    Bo på Bergö

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    Recension av: Bo på Bergö. Människor och resurser i ett ösamhälle. Red. Anne Bergman et al. Svenska litteratursällskapet i Finland, Helsingfors 2001. (Meddelanden från Folkkultursarkivet nr 19.) 216 s. ill

    Completeness of the Bergman metric on non-smooth pseudoconvex domains

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    We prove that the Bergman metric on domains satisfying condition S is complete. This implies that any bounded pseudoconvex domain with Lipschitz boundary is complete with respect to the Bergman metric. We also show that bounded hyperconvex domains in the plane and convex domains in Cnℂ^n are Bergman comlete

    The Berezin transform and 𝑚th-order Bergman metric

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    We improve upon recent directional derivative estimates for Berezin’s operator calculus, and consider the relation between the m m th-order Bergman metric of Burbea and the classical Bergman metric in the analysis of higher order directional derivative estimates of the Berezin symbols of general bounded operators. A new metric, naturally arising in our analysis, is introduced and certain comparison theorems are established among this metric, the m m th-order Bergman metric and the classical Bergman metric on the unit ball, the polydisk and C n \mathbb C^n .</p

    On the pp-Bergman theory

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    In this paper we attempt to develop a general pp-Bergman theory on bounded domains in Cn\mathbb C^n. To indicate the basic difference between LpL^p and L2L^2 cases, we show that the pp-Bergman kernel Kp(z)K_p(z) is not real-analytic on some bounded complete Reinhardt domains when p4p\ge 4 is an even number. By the calculus of variations we get a fundamental reproducing formula. This together with certain techniques from nonlinear analysis of the pp-Laplacian yield a number of results, e.g., the off-diagonal pp-Bergman kernel Kp(z,)K_p(z,\cdot) is H\"older continuous of order 12\frac12 for p>1p>1 and of order 12(n+2)\frac1{2(n+2)} for p=1p=1. We also show that the pp-Bergman metric Bp(z;X)B_p(z;X) tends to the Carath\'eodory metric C(z;X)C(z;X) as pp\rightarrow \infty and the generalized Levi form iˉlogKp(z;X)i\partial\bar{\partial}\log K_p(z;X) is no less than Bp(z;X)2B_p(z;X)^2 for p2p\ge 2 and C(z;X)2 C(z;X)^2 for p2.p\le 2. Stability of Kp(z,w)K_p(z,w) or Bp(z;X)B_p(z;X) as pp varies, boundary behavior of Kp(z)K_p(z), as well as basic facts on the pp-Bergman prjection, are also investigated.Comment: Final version; a concluding remark is added in section 3, Adv. Math. (2022

    A comparison principle for bergman kernels

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    We give a version of the comparison principle from pluripotential theory where the Monge–Ampère measure is replaced by the Bergman kernel and use it to derive a maximum principle

    Real Variable Things in Bergman Theory

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    In this article, we investigate the connection between certain real variable things and the Bergman theory. We first use Hardy-type inequalities to give an L2L^2 Hartogs-type extension theorem and an LpL^p integrability theorem for the Bergman kernel KΩ(,w)K_Ω(\cdot,w). We then use the Sobolev-Morrey inequality to show the absolute continuity of Bergman kernels on planar domains with respect to logarithmic capacities. Finally, we give lower bounds of the minimum κ(Ω)κ(Ω) of the Bergman kernel KΩ(z)K_Ω(z) in terms of the interior capacity radius for planar domains and the volume density for bounded pseudoconvex domains in Cn\mathbb C^n. As a consequence, we show that κ(Ω)c0λ1(Ω)κ(Ω)\ge c_0 λ_1(Ω) holds on planar domains, where c0c_0 is a numerical constant and λ1(Ω)λ_1(Ω) is the first Dirichlet eigenvalue of Δ

    Log-hyperconvexity index and Bergman kernel

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    We obtain a quantitative estimate of Bergman distance when ΩCn\Omega \subset \mathbb{C}^n is a bounded domain with log-hyperconvexity index αl(Ω)>n1+(n1)(n+3)2\alpha_l(\Omega)>\frac{n-1+\sqrt{(n-1)(n+3)}}{2}, as well as the A2(logA)qA^2(\log A)^q-integrability of the Bergman kernel KΩ(,w)K_{\Omega}(\cdot, w) when αl(Ω)>0\alpha_l(\Omega)>0
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