caa a22 4500 605461252 CHVBK 20210128100242.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10114-015-1611-y doi (NATIONALLICENCE)springer-10.1007/s10114-015-1611-y Shen Liang Department of Mathematics, Princeton University, 08544, Princeton, NJ, USA aut Noncompact 4-manifolds with uniformly positive isotropic curvature [Elektronische Daten] [Liang Shen] In this paper, we study Ricci flow on noncompact 4-manifolds with uniformly positive isotropic curvature and with no essential imcompressible space form. That means there is positive lower bound of isotropic curvature and bounded geometry. Then by Perelman's technique, we can analyze the structures of such manifolds. Institute of Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Chinese Mathematical Society and Springer-Verlag Berlin Heidelberg, 2015 Ricci flow nationallicence surgery nationallicence isotropic curvature nationallicence Acta Mathematica Sinica, English Series Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society 31/9(2015-09-01), 1391-1414 1439-8516 31:9<1391 2015 31 10114 https://doi.org/10.1007/s10114-015-1611-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10114-015-1611-y text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Shen Liang Department of Mathematics, Princeton University, 08544, Princeton, NJ, USA aut NATIONALLICENCE 773 0- Acta Mathematica Sinica, English Series Institute of Mathematics, Chinese Academy of Sciences and Chinese Mathematical Society 31/9(2015-09-01), 1391-1414 1439-8516 31:9<1391 2015 31 10114