刊名:Journal of Mathematical Analysis and Applications
出版年:2017
出版时间:1 January 2017
年:2017
卷:445
期:1
页码:612-630
全文大小:387 K
文摘
In this paper we deal with Banach spaces of analytic functions m>X m> defined on the unit disk satisfying that mmlsi1" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si1.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=9e41b59e0d39d55b3e17c56f5a20b3f0" title="Click to view the MathML source">Rtf∈XmathContainer hidden">mathCode"><math altimg="si1.gif" overflow="scroll"><msub><mrow><mi>Rmi>mrow><mrow><mi>tmi>mrow>msub><mi>fmi><mo>∈mo><mi>Xmi>math> for any mmlsi2" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si2.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=653e962132a2a043da43c6f2e2e862fd" title="Click to view the MathML source">t>0mathContainer hidden">mathCode"><math altimg="si2.gif" overflow="scroll"><mi>tmi><mo>>mo><mn>0mn>math> and mmlsi3" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si3.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=7cce2c1e426ebd5343134f03376773ba" title="Click to view the MathML source">f∈XmathContainer hidden">mathCode"><math altimg="si3.gif" overflow="scroll"><mi>fmi><mo>∈mo><mi>Xmi>math>, where mmlsi4" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si4.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=d3b24d9a9134cf0350e164af3f95adce" title="Click to view the MathML source">Rtf(z)=f(eitz)mathContainer hidden">mathCode"><math altimg="si4.gif" overflow="scroll"><msub><mrow><mi>Rmi>mrow><mrow><mi>tmi>mrow>msub><mi>fmi><mo stretchy="false">(mo><mi>zmi><mo stretchy="false">)mo><mo>=mo><mi>fmi><mo stretchy="false">(mo><msup><mrow><mi>emi>mrow><mrow><mi>imi><mi>tmi>mrow>msup><mi>zmi><mo stretchy="false">)mo>math>. We study the space of functions in m>X m> such that mmlsi5" class="mathmlsrc">mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si5.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=df60d8b0f633c3b9ac9117bb542a8bb6">mg class="imgLazyJSB inlineImage" height="22" width="174" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0022247X16304012-si5.gif">mathContainer hidden">mathCode"><math altimg="si5.gif" overflow="scroll"><msub><mrow><mo stretchy="false">‖mo><msub><mrow><mi>Pmi>mrow><mrow><mi>rmi>mrow>msub><mo stretchy="false">(mo><mi>Dmi><mi>fmi><mo stretchy="false">)mo><mo stretchy="false">‖mo>mrow><mrow><mi>Xmi>mrow>msub><mo>=mo><mi>Omi><mo stretchy="false">(mo><mfrac><mrow><mi>ωmi><mo stretchy="false">(mo><mn>1mn><mo>−mo><mi>rmi><mo stretchy="false">)mo>mrow><mrow><mn>1mn><mo>−mo><mi>rmi>mrow>mfrac><mo stretchy="false">)mo>math>, mmlsi6" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si6.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=2dfc7f7d4bd29e0478efef28a572f697" title="Click to view the MathML source">r→1−mathContainer hidden">mathCode"><math altimg="si6.gif" overflow="scroll"><mi>rmi><mo stretchy="false">→mo><msup><mrow><mn>1mn>mrow><mrow><mo>−mo>mrow>msup>math> where mmlsi7" class="mathmlsrc">mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si7.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=c49ccaa1c22b69a6d7af9a00baf09b9e">mg class="imgLazyJSB inlineImage" height="18" width="193" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0022247X16304012-si7.gif">mathContainer hidden">mathCode"><math altimg="si7.gif" overflow="scroll"><mi>Dmi><mi>fmi><mo stretchy="false">(mo><mi>zmi><mo stretchy="false">)mo><mo>=mo><msubsup><mrow><mo>∑mo>mrow><mrow><mi>nmi><mo>=mo><mn>0mn>mrow><mrow><mo>∞mo>mrow>msubsup><mo stretchy="false">(mo><mi>nmi><mo>+mo><mn>1mn><mo stretchy="false">)mo><msub><mrow><mi>ami>mrow><mrow><mi>nmi>mrow>msub><msup><mrow><mi>zmi>mrow><mrow><mi>nmi>mrow>msup>math> and m>ωm> is a continuous and non-decreasing weight satisfying certain mild assumptions. The space under consideration is shown to coincide with the subspace of functions in m>X m> satisfying any of the following conditions: (a) mmlsi8" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si8.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=6c7de8a366cabfa20757bdd49ae6b3e7" title="Click to view the MathML source">‖Rtf−f‖X=O(ω(t))mathContainer hidden">mathCode"><math altimg="si8.gif" overflow="scroll"><msub><mrow><mo stretchy="false">‖mo><msub><mrow><mi>Rmi>mrow><mrow><mi>tmi>mrow>msub><mi>fmi><mo>−mo><mi>fmi><mo stretchy="false">‖mo>mrow><mrow><mi>Xmi>mrow>msub><mo>=mo><mi>Omi><mo stretchy="false">(mo><mi>ωmi><mo stretchy="false">(mo><mi>tmi><mo stretchy="false">)mo><mo stretchy="false">)mo>math>, (b) mmlsi88" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si88.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=8fc6135e1c34e45209f79b0c4a94a141" title="Click to view the MathML source">‖Prf−f‖X=O(ω(1−r))mathContainer hidden">mathCode"><math altimg="si88.gif" overflow="scroll"><msub><mrow><mo stretchy="false">‖mo><msub><mrow><mi>Pmi>mrow><mrow><mi>rmi>mrow>msub><mi>fmi><mo>−mo><mi>fmi><mo stretchy="false">‖mo>mrow><mrow><mi>Xmi>mrow>msub><mo>=mo><mi>Omi><mo stretchy="false">(mo><mi>ωmi><mo stretchy="false">(mo><mn>1mn><mo>−mo><mi>rmi><mo stretchy="false">)mo><mo stretchy="false">)mo>math>, (c) mmlsi10" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si10.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=526fe1e29d061c1eaae46d74132ff9cd" title="Click to view the MathML source">‖Δnf‖X=O(ω(2−n))mathContainer hidden">mathCode"><math altimg="si10.gif" overflow="scroll"><msub><mrow><mo stretchy="false">‖mo><msub><mrow><mi mathvariant="normal">Δmi>mrow><mrow><mi>nmi>mrow>msub><mi>fmi><mo stretchy="false">‖mo>mrow><mrow><mi>Xmi>mrow>msub><mo>=mo><mi>Omi><mo stretchy="false">(mo><mi>ωmi><mo stretchy="false">(mo><msup><mrow><mn>2mn>mrow><mrow><mo>−mo><mi>nmi>mrow>msup><mo stretchy="false">)mo><mo stretchy="false">)mo>math>, or (d) mmlsi11" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si11.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=33571ec83d8f9cdc78759394ed6a567c" title="Click to view the MathML source">‖f−snf‖X=O(ω(n−1))mathContainer hidden">mathCode"><math altimg="si11.gif" overflow="scroll"><msub><mrow><mo stretchy="false">‖mo><mi>fmi><mo>−mo><msub><mrow><mi>smi>mrow><mrow><mi>nmi>mrow>msub><mi>fmi><mo stretchy="false">‖mo>mrow><mrow><mi>Xmi>mrow>msub><mo>=mo><mi>Omi><mo stretchy="false">(mo><mi>ωmi><mo stretchy="false">(mo><msup><mrow><mi>nmi>mrow><mrow><mo>−mo><mn>1mn>mrow>msup><mo stretchy="false">)mo><mo stretchy="false">)mo>math>, where mmlsi12" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si12.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=8e19c1accea6fd7969f55a0b1095afb8" title="Click to view the MathML source">Prf(z)=f(rz)mathContainer hidden">mathCode"><math altimg="si12.gif" overflow="scroll"><msub><mrow><mi>Pmi>mrow><mrow><mi>rmi>mrow>msub><mi>fmi><mo stretchy="false">(mo><mi>zmi><mo stretchy="false">)mo><mo>=mo><mi>fmi><mo stretchy="false">(mo><mi>rmi><mi>zmi><mo stretchy="false">)mo>math>, mmlsi13" class="mathmlsrc">mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si13.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=c910845d630e4641062d2a5314de0384">mg class="imgLazyJSB inlineImage" height="19" width="146" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0022247X16304012-si13.gif">mathContainer hidden">mathCode"><math altimg="si13.gif" overflow="scroll"><msub><mrow><mi>smi>mrow><mrow><mi>nmi>mrow>msub><mi>fmi><mo stretchy="false">(mo><mi>zmi><mo stretchy="false">)mo><mo>=mo><msubsup><mrow><mo>∑mo>mrow><mrow><mi>kmi><mo>=mo><mn>0mn>mrow><mrow><mi>nmi>mrow>msubsup><msub><mrow><mi>ami>mrow><mrow><mi>kmi>mrow>msub><msup><mrow><mi>zmi>mrow><mrow><mi>kmi>mrow>msup>math> and mmlsi14" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si14.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=8ace7f9b4b1464072a3a84b239ed393c" title="Click to view the MathML source">Δnf=s2nf−s2n−1fmathContainer hidden">mathCode"><math altimg="si14.gif" overflow="scroll"><msub><mrow><mi mathvariant="normal">Δmi>mrow><mrow><mi>nmi>mrow>msub><mi>fmi><mo>=mo><msub><mrow><mi>smi>mrow><mrow><msup><mrow><mn>2mn>mrow><mrow><mi>nmi>mrow>msup>mrow>msub><mi>fmi><mo>−mo><msub><mrow><mi>smi>mrow><mrow><msup><mrow><mn>2mn>mrow><mrow><mi>nmi><mo>−mo><mn>1mn>mrow>msup>mrow>msub><mi>fmi>math>. Our results extend those known for Hardy or Bergman spaces and power weights mmlsi15" class="mathmlsrc">mulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0022247X16304012&_mathId=si15.gif&_user=111111111&_pii=S0022247X16304012&_rdoc=1&_issn=0022247X&md5=56e302821347adb809361e9a188ad623" title="Click to view the MathML source">ω(t)=tαmathContainer hidden">mathCode"><math altimg="si15.gif" overflow="scroll"><mi>ωmi><mo stretchy="false">(mo><mi>tmi><mo stretchy="false">)mo><mo>=mo><msup><mrow><mi>tmi>mrow><mrow><mi>αmi>mrow>msup>math>.