On some generic classes of ergodic measure preserving transformations
On some generic classes of ergodic measure preserving transformations
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关于一些通用类遍历测度保持变换
DOI:
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发表时间:
2020
影响因子:
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通讯作者:
B. Weiss
中科院分区:
文献类型:
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作者:
E. Glasner;J. Thouvenot;B. Weiss
<p>We answer positively a question of Ryzhikov, namely we show that being a relatively weakly mixing extension is a comeager property in the Polish group of measure preserving transformations. We study some related classes of ergodic transformations and their interrelations. In the second part of the paper we show that for a fixed ergodic <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper T">
<mml:semantics>
<mml:mi>T</mml:mi>
<mml:annotation encoding="application/x-tex">T</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> with property <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="bold upper A">
<mml:semantics>
<mml:mrow class="MJX-TeXAtom-ORD">
<mml:mi mathvariant="bold">A</mml:mi>
</mml:mrow>
<mml:annotation encoding="application/x-tex">mathbf {A}</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula>, a generic extension <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="ModifyingAbove upper T With caret">
<mml:semantics>
<mml:mrow class="MJX-TeXAtom-ORD">
<mml:mover>
<mml:mi>T</mml:mi>
<mml:mo>^<!-- ^ --></mml:mo>
</mml:mover>
</mml:mrow>
<mml:annotation encoding="application/x-tex">widehat {T}</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 T">
<mml:semantics>
<mml:mi>T</mml:mi>
<mml:annotation encoding="application/x-tex">T</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> also has property <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="bold upper A">
<mml:semantics>
<mml:mrow class="MJX-TeXAtom-ORD">
<mml:mi mathvariant="bold">A</mml:mi>
</mml:mrow>
<mml:annotation encoding="application/x-tex">mathbf {A}</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula>. Here <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="bold upper A">
<mml:semantics>
<mml:mrow class="MJX-TeXAtom-ORD">
<mml:mi mathvariant="bold">A</mml:mi>
</mml:mrow>
<mml:annotation encoding="application/x-tex">mathbf {A}</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula> stands for each of the following properties: (i) having the same entropy as <inline-formula content-type="math/mathml">
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper T">
<mml:semantics>
<mml:mi>T</mml:mi>
<mml:annotation encoding="application/x-tex">T</mml:annotation>
</mml:semantics>
</mml:math>
</inline-formula>, (ii) Bernoulli, (iii) K, and (iv) loosely Bernoulli.</p>
影响因子:
1.1
作者:
Chaika, Jon;Kra, Bryna
通讯作者:
Kra, Bryna