Counterexample of a bounded domain for ohsawa's problem
Hidetaka Hamada, Miki Tsuji
Abstract
Hidetaka Hamada, Miki Tsuji
Abstract
In the Summer Seminar at Tateyama in Japan on Several Complex variables, July l8, 1994, Professor T Ohsawa posed the following problem in his talk [13]. PROBLEM (Ohsawa) Let ω be a bounded pseudoconvex domain in Cn and H be a one-codimensional complex liner subspace of Cn . For any bounded holomorphic function g on ω⋓H, is there a bounded holomorphic function f on ω such that the restriction of f toω⋓H coincides with g on ω⋂H? The second author [17] gave a counterexample for the above problem in case that H is unbounded. In the present paper, we give a counterexample in case that ω is bounded, using N. Sibony's domain [16].
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In the Summer Seminar at Tateyama in Japan on Several Complex variables, July l8, 1994, Professor T Ohsawa posed the following problem in his talk [13]. PROBLEM (Ohsawa) Let ω be a bounded pseudoconvex domain in Cn and H be a one-codimensional complex liner subspace of Cn . For any bounded holomorphic function g on ω⋓H, is there a bounded holomorphic function f on ω such that the restriction of f toω⋓H coincides with g on ω⋂H? The second author [17] gave a counterexample for the above problem in case that H is unbounded. In the present paper, we give a counterexample in case that ω is bounded, using N. Sibony's domain [16].
Key concepts: Counterexample, Bounded function, Holomorphic function, Mathematics, Domain (mathematical analysis), Subspace topology, Function (biology), Combinatorics