![]() These results often feed back into complex algebraic geometry, and for example recently the classification of Fano manifolds using K-stability has benefited tremendously both from techniques in analysis and in pure birational geometry.Ĭomplex geometry has significant applications to theoretical physics, where it is essential in understanding conformal field theory, string theory, and mirror symmetry. Additionally, the extra structure of complex geometry allows, especially in the compact setting, for global analytic results to be proven with great success, including Shing-Tung Yau's proof of the Calabi conjecture, the Hitchin–Kobayashi correspondence, the nonabelian Hodge correspondence, and existence results for Kähler–Einstein metrics and constant scalar curvature Kähler metrics. ![]() For example, the classification of complex manifolds and complex algebraic varieties through the minimal model program and the construction of moduli spaces sets the field apart from differential geometry, where the classification of possible smooth manifolds is a significantly harder problem. Because of the blend of techniques and ideas from various areas, problems in complex geometry are often more tractable or concrete than in general. Application of transcendental methods to algebraic geometry falls in this category, together with more geometric aspects of complex analysis.Ĭomplex geometry sits at the intersection of algebraic geometry, differential geometry, and complex analysis, and uses tools from all three areas. In particular, complex geometry is concerned with the study of spaces such as complex manifolds and complex algebraic varieties, functions of several complex variables, and holomorphic constructions such as holomorphic vector bundles and coherent sheaves. In mathematics, complex geometry is the study of geometric structures and constructions arising out of, or described by, the complex numbers.
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