Potentials and Chern forms for Weil-Petersson and Takhtajan-Zograf metrics on moduli spaces

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• 作者：Jinsung Park^a ; ^{jinsung@kias.re.kr" class="auth_mail" title="E-mail the corresponding author} ; Leon A. Takhtajan^b ; ^c ; ^{leontak@math.sunysb.edu" class="auth_mail" title="E-mail the corresponding author} ; Lee-Peng Teo^d ; ^{lpteo@xmu.edu.my" class="auth_mail" title="E-mail the corresponding author}
• 关键词：primary ; 14H60 ; 32G15 ; secondary ; 53C80
• 刊名：Advances in Mathematics
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：305
• 期：Complete
• 页码：856-894
• 全文大小：631 K

文摘

For the TZ metric on the moduli space class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si1.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=0ef4c0900e91c930d6acfbe98ebcc9b6" title="Click to view the MathML source">M_0,nclass="mathContainer hidden">class="mathCode">th altimg="si1.gif" overflow="scroll">thvariant="script">M0,nth> of n  -pointed rational curves, we construct a Kähler potential in terms of the Fourier coefficients of the Klein's Hauptmodul. We define the space class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si2.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=082ac70425503cfffe4f36b606c622a5" title="Click to view the MathML source">S_g,nclass="mathContainer hidden">class="mathCode">th altimg="si2.gif" overflow="scroll">thvariant="fraktur">Sg,nth> as holomorphic fibration class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si3.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=cef116e0fcbc7c05f764baad31d315e4" title="Click to view the MathML source">S_g,n→S_gclass="mathContainer hidden">class="mathCode">th altimg="si3.gif" overflow="scroll">thvariant="fraktur">Sg,ntretchy="false">→thvariant="fraktur">Sgth> over the Schottky space class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si4.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=d5a11d01b9b68b1dcc8800a492859b11" title="Click to view the MathML source">S_gclass="mathContainer hidden">class="mathCode">th altimg="si4.gif" overflow="scroll">thvariant="fraktur">Sgth> of compact Riemann surfaces of genus g, where the fibers are configuration spaces of n   points. For the tautological line bundles class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si21.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=3d5f378089a3be2f660ec640afc7b993" title="Click to view the MathML source">L_iclass="mathContainer hidden">class="mathCode">th altimg="si21.gif" overflow="scroll">thvariant="script">Lith> over class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si2.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=082ac70425503cfffe4f36b606c622a5" title="Click to view the MathML source">S_g,nclass="mathContainer hidden">class="mathCode">th altimg="si2.gif" overflow="scroll">thvariant="fraktur">Sg,nth>, we define Hermitian metrics class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si343.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=7512e6237c51f5e31429f4e8181c4cca" title="Click to view the MathML source">h_iclass="mathContainer hidden">class="mathCode">th altimg="si343.gif" overflow="scroll">hith> in terms of Fourier coefficients of a covering map J of the Schottky domain. We define the regularized classical Liouville action S   and show that class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si39.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=e25a109b45c6a842087c5a55780dd6e3" title="Click to view the MathML source">exp⁡{S/π}class="mathContainer hidden">class="mathCode">th altimg="si39.gif" overflow="scroll">thvariant="normal">exp⁡tretchy="false">{Stretchy="false">/πtretchy="false">}th> is a Hermitian metric in the line bundle class="mathmlsrc">title="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si9.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=7bc83484836b060081b10fc5db7c461a">class="imgLazyJSB inlineImage" height="16" width="93" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0001870816301670-si9.gif">cript>t="16" border="0" style="vertical-align:bottom" width="93" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0001870816301670-si9.gif">cript>class="mathContainer hidden">class="mathCode">th altimg="si9.gif" overflow="scroll">thvariant="script">L=⊗i=1nthvariant="script">Lith> over class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si2.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=082ac70425503cfffe4f36b606c622a5" title="Click to view the MathML source">S_g,nclass="mathContainer hidden">class="mathCode">th altimg="si2.gif" overflow="scroll">thvariant="fraktur">Sg,nth>. We explicitly compute the Chern forms of these Hermitian line bundles We prove that a smooth real-valued function class="mathmlsrc">title="View the MathML source" class="mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si11.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=b8b60a4d1ac037fb01da529eaba12c24">class="imgLazyJSB inlineImage" height="18" width="186" alt="View the MathML source" title="View the MathML source" src="/sd/grey_pxl.gif" data-inlimgeid="1-s2.0-S0001870816301670-si11.gif">cript>t="18" border="0" style="vertical-align:bottom" width="186" alt="View the MathML source" title="View the MathML source" src="http://origin-ars.els-cdn.com/content/image/1-s2.0-S0001870816301670-si11.gif">cript>class="mathContainer hidden">class="mathCode">th altimg="si11.gif" overflow="scroll">−thvariant="script">S=−S+π∑i=1nthvariant="normal">log⁡hith> on class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si2.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=082ac70425503cfffe4f36b606c622a5" title="Click to view the MathML source">S_g,nclass="mathContainer hidden">class="mathCode">th altimg="si2.gif" overflow="scroll">thvariant="fraktur">Sg,nth>, a potential for this special difference of WP and TZ metrics, coincides with the renormalized hyperbolic volume of a corresponding Schottky 3-manifold. We extend these results to the quasi-Fuchsian groups of type class="mathmlsrc">class="formulatext stixSupport mathImg" data-mathURL="/science?_ob=MathURL&_method=retrieve&_eid=1-s2.0-S0001870816301670&_mathId=si12.gif&_user=111111111&_pii=S0001870816301670&_rdoc=1&_issn=00018708&md5=46bf961eaec02c7956e2adaee582d856" title="Click to view the MathML source">(g,n)class="mathContainer hidden">class="mathCode">th altimg="si12.gif" overflow="scroll">tretchy="false">(g,ntretchy="false">)th>.