<oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
<dc:title>On the problem of characterizing multipliers for the Drury-Arveson space</dc:title>
<dc:creator>Quanlei Fang</dc:creator><dc:creator>Jingbo Xia</dc:creator>
<dc:subject>46E22</dc:subject><dc:subject>47B32.</dc:subject><dc:subject>Drury-Arveson space</dc:subject><dc:subject>reproducing kernel</dc:subject><dc:subject>multiplier.</dc:subject>
<dc:description>Let $H^2_n$ be the Drury-Arveson space on the unit ball $\mathbb{B}$ in $\mathbb{C}^n$, and suppose that $n\geq2$. Let $k_z$, $z\in\mathbb{B}$ be the normalized reproducing kernel for $H^2_n$. In this paper, we consider the following rather basic question in the theory of the Drury-Arveson space: for $f\in H^2_n$, does the condition $\sup_{|z|&lt;1}\|fk_z\|&lt;\infty$ imply that $f$ is a multiplier of $H^2_n$? We show that the answer is negative. We further show that the analogue of the familiar norm inequality $\|H_{\phi}\|\leq C\|\phi\|_{\mbox{\scriptsize BMO}}$ for Hankel operators fails in the Drury-Arveson space.</dc:description>
<dc:publisher>Indiana University Mathematics Journal</dc:publisher>
<dc:date>2015</dc:date>
<dc:type>text</dc:type>
<dc:format>pdf</dc:format>
<dc:identifier>10.1512/iumj.2015.64.5506</dc:identifier>
<dc:source>10.1512/iumj.2015.64.5506</dc:source>
<dc:language>en</dc:language>
<dc:relation>Indiana Univ. Math. J. 64 (2015) 663 - 696</dc:relation>
<dc:coverage>state-of-the-art mathematics</dc:coverage>
<dc:rights>http://iumj.org/access/</dc:rights>
</oai_dc:dc>