Bloch functions on the unit ball of a Banach space
Bloch functions on the unit ball of a Banach space
复制标题
巴纳赫空间单位球上的布洛赫函数
DOI:
10.1090/proc/14966
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发表时间:
2018
影响因子:
1
通讯作者:
A. Miralles
中科院分区:
文献类型:
--
作者:
A. Miralles
<p>The space of Bloch functions on bounded symmetric domains is extended by considering Bloch functions <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="f">
<mml:semantics>
<mml:mi>f</mml:mi>
<mml:annotation encoding="application/x-tex">f</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> on the unit ball <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper B Subscript upper E">
<mml:semantics>
<mml:msub>
<mml:mi>B</mml:mi>
<mml:mi>E</mml:mi>
</mml:msub>
<mml:annotation encoding="application/x-tex">B_E</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> of finite and infinite dimensional complex Banach spaces in two different ways: by extending the classical Bloch space considering the boundness of <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="left-parenthesis 1 minus double-vertical-bar x double-vertical-bar squared right-parenthesis double-vertical-bar f prime left-parenthesis x right-parenthesis double-vertical-bar">
<mml:semantics>
<mml:mrow>
<mml:mo stretchy="false">(</mml:mo>
<mml:mn>1</mml:mn>
<mml:mo>−<!-- − --></mml:mo>
<mml:mo fence="false" stretchy="false">‖<!-- ‖ --></mml:mo>
<mml:mi>x</mml:mi>
<mml:msup>
<mml:mo fence="false" stretchy="false">‖<!-- ‖ --></mml:mo>
<mml:mn>2</mml:mn>
</mml:msup>
<mml:mo stretchy="false">)</mml:mo>
<mml:mo fence="false" stretchy="false">‖<!-- ‖ --></mml:mo>
<mml:msup>
<mml:mi>f</mml:mi>
<mml:mo>′</mml:mo>
</mml:msup>
<mml:mo stretchy="false">(</mml:mo>
<mml:mi>x</mml:mi>
<mml:mo stretchy="false">)</mml:mo>
<mml:mo fence="false" stretchy="false">‖<!-- ‖ --></mml:mo>
</mml:mrow>
<mml:annotation encoding="application/x-tex">(1-\|x\|^2) \|f’(x)\|</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> on <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper B Subscript upper E">
<mml:semantics>
<mml:msub>
<mml:mi>B</mml:mi>
<mml:mi>E</mml:mi>
</mml:msub>
<mml:annotation encoding="application/x-tex">B_E</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> and by preserving the invariance of the correspondiing seminorm when we compose with automorphisms <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="phi">
<mml:semantics>
<mml:mi>φ<!-- φ --></mml:mi>
<mml:annotation encoding="application/x-tex">\varphi</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> of <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper B Subscript upper E">
<mml:semantics>
<mml:msub>
<mml:mi>B</mml:mi>
<mml:mi>E</mml:mi>
</mml:msub>
<mml:annotation encoding="application/x-tex">B_E</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula>. We study the connection between these spaces proving that they are different in general and prove that all bounded analytic functions on <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper B Subscript upper E">
<mml:semantics>
<mml:msub>
<mml:mi>B</mml:mi>
<mml:mrow class="MJX-TeXAtom-ORD">
<mml:mi>E</mml:mi>
</mml:mrow>
</mml:msub>
<mml:annotation encoding="application/x-tex">B_{E}</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> are Bloch functions in both ways.</p>