On the Hausdorff dimension of the singular set of stable-stationary harmonic maps
On the Hausdorff dimension of the singular set of stable-stationary harmonic maps
复制标题
关于稳定平稳调和映射奇异集的豪斯多夫维数
DOI:
10.1080/03605309908821490
复制
发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Min
中科院分区:
文献类型:
--
作者:
Min
'~ YK. crit, ical j) oilit. s of the Dirichlet energy functional of rnaps between two T<. i (mal~~~ ian~ m~~ ifi) l (is M and N are called" harmonic maps". In a funda-~ ncntal paper [3], Eells-Sarnpson established existence of smooth harmonic maps from 11.1 t, o N assuming N has rionpositive sectional curvature. Gencrally, harrrionic. rnaps into N with positive sectional curvature may have a sing~ larit~ y (cg. sc~(161). Many important contributions to the regular-il, y thory of'tiiiliirnizing harmonic maps have been made (see sectior~ 3 of 141). Ii I~ MS 0 (:(, 11 st.;~ 1) 1ish~ d by SCIIOCII-IJ~ I~ O~ I~~ CC~ 1221 for general cast.. and irltlol)(~~ l (lc~ l~ t~ l~, l) y (: ii~ clr~ illta-Giilsti [8].[!) j for the case whcro the inlagr: of 111; q) s is c~ o~~ t~ airxd ill a sir~ glc cllart, that all\'mininlizing I~ arnlorlic snitp in I11. 2 (Ai. N) is s~~ iootli c: xcej) t fkr a singlhr sc't where the Hausdorff dilrit: nsic111 of tlio siugula~ set. is less than or ccplal t> o I r-3. Recently, inspirc, tl by Hel (, ir~'s braut. ifi11 work [14] on two dimensional harmonic maps, it was 11rovcx1 ly Ev:~ i~ s [5] in ttic casc with vi~ 111es int, o splieres and by Rct, lmc~ l [2] In gt! r~('~. itl t 11at any st atioriary harmonic 111iip is sniooth away fro111 a. singi~ lar