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作者:MINICOZZI, WP
摘要:In this paper we prove an existence and regularity theorem for lagrangian tori minimizing the Willmore functional in Euclidean four-space, R(4), with the standard metric and symplectic structure. Technical difficulties arise because the Euler-Lagrange equation for this problem is a sixth-order nonlinear partial differential equation. This research was motivated by a study of the seemingly unrelated Plateau problem for lagrangian tori, and in this paper we illustrate this connection.
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作者:JUDGE, CM
作者单位:Institute for Advanced Study - USA
摘要:The perturbation theory of the Laplace spectrum of hyperbolic surfaces with conical singularities belonging to a fixed conformal class is developed. As an application, it is shown that the generic such surface with cusps has no Maass cusp forms ( L(2) eigenfunctions) under specific eigenvalue multiplicity assumptions. It is also shown that eigenvalues depend monotonically on the cone angles. From this, one obtains Neumann eigenvalue monotonicity for geodesic triangles in H-2 and a lower bound ...
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作者:Raicu, Claudiu; Vandebogert, Keller
作者单位:University of Notre Dame; University of Bucharest; Institute of Mathematics of the Romanian Academy; University of Kentucky
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作者:Pilatte, Cedric
作者单位:University of Oxford; University of Cambridge
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作者:Quastel, Jeremy; Sarkar, Sourav
作者单位:University of Toronto; University of Cambridge
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作者:Calegari, Frank; Dimitrov, Vesselin; Tang, Yunqing
作者单位:University of Chicago; California Institute of Technology; University of California System; University of California Berkeley
摘要:We prove the unbounded denominators conjecture in the theory of noncongruence modular forms for finite index subgroups of SL2(Z). Our result includes also Masons generalization of the original conjecture to the setting of vector-valued modular forms, thereby supplying a new path to the congruence property in rational conformal field theory. The proof involves a new arithmetic holonomicity bound of a potential-theoretic flavor, together with Nevanlinna second main theorem, the congruence subgro...
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作者:Heuer, Ben; Xu, Daxin
作者单位:Leibniz University Hannover; Chinese Academy of Sciences; Chinese Academy of Sciences; Academy of Mathematics & System Sciences, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS
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作者:Wang, Zhenqi Jenny
作者单位:Michigan State University
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作者:Xu, Chenyang; Zhuang, Ziquan
作者单位:Princeton University; Johns Hopkins University
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作者:Gross, Mark; Siebert, Bernd
作者单位:University of Cambridge; University of Texas System; University of Texas Austin