15 PRIMA 2013 AbstractsIn this talk, we study the weak continuity of k-curv<strong>at</strong>uremeasures of locally bounded, upper semicontinous functionswhich are subharmonic with respect to k-curv<strong>at</strong>ureoper<strong>at</strong>ors. The the proof uses the monotonicity integralinequality. This is a joint work with Qiuyi Dai and Xu-jiaWang.Special Session 7Geometric Aspects of Semilinear EllipticEqu<strong>at</strong>ions: Recent Advances & Future PerspectivesRegulariz<strong>at</strong>ion of point vortex solution forEuler equ<strong>at</strong>ionDaomin CaoChinese Academy of Sciences, Chinadmcao@amt.ac.cnIn this talk the speaker will talk about the regulariz<strong>at</strong>ionof point vortex solution for Euler equ<strong>at</strong>ion of 2 dimension.The existence of point vortex solutions is closelyrel<strong>at</strong>ed to the so called Kirchhoff Routh function. Thecritical points of Kirchhoff Routh function can deduce asteady point vortex solution. For a given critical point ofKirchhoff Routh function, can one establish the existenceof smooth steady solutions approxim<strong>at</strong>ing the point vortexsolution deduced by the point? He will talk about theprevious study concerning this respect. A newly obtainedresults by the speaker and his collabor<strong>at</strong>ors, Liu ZhongYuan and Wei Juncheng, will be introduced.Nonlocal minimal surfacesJuan DávilaUniversidad de Chile, Chilejdavila@dim.uchile.clCaffarelli, Roquejoffre and Savin (2010) introduced a notionof nonlocal minimal surface, which is a boundary ofa set th<strong>at</strong> is minimal with respect to an s-perimeter functional,where 0 < s < 1. It is n<strong>at</strong>ural to consider criticalpoints of the s-perimeter, which we call s-minimal surfaces.Up to now there are very few examples of such sets.Starting from the property th<strong>at</strong> as s → 1, the s-minimalequ<strong>at</strong>ion approaches the classical minimal surface equ<strong>at</strong>ion,we construct new examples of s-minimal surfaces fors close to 1.This is joint work with Manuel del Pino (Universidad deChile) and Juncheng Wei (Chinese University Of HongKong and University of British Columbia).Solutions for a semilinear elliptic equ<strong>at</strong>ion indimension two with supercritical growthIgnacio GuerraUniversidad de Santiago de Chile, Chileignacio.guerra@usach.clWe consider the problem−∆u = λue up , u > 0, in Ω,u = 0 on ∂Ω,where Ω ⊂ R 2 and p > 2. Let λ 1 be the first eigenvalueof the Laplacian. For each λ ∈ (0, λ 1 ), we prove the existenceof solutions for p sufficiently close to 2. In the caseof Ω a ball, we also describe numerically the bifurc<strong>at</strong>iondiagram (λ, u) for p > 2.On the entire radial solutions arising inChern-Simons equ<strong>at</strong>ionsHsin-Yuan HuangN<strong>at</strong>ional Sun Y<strong>at</strong>-sen University, Taiwan, R.O.Chyhuang@m<strong>at</strong>h.nsysu.edu.twIn this paper, we study the the entire radial solutions of(∗):∆u = − (1 + a)(e u − (1 + a)e 2u + ae u+v )+ a(e v − (1 + b)e 2v + be u+v )+ 4πN 1 δ 0∆v = − (1 + b)(e v − (1 + b)e 2v + be u+v )+ b(e u − (1 + a)e 2u + ae u+v )+ 4πN 2 δ 0 .Here, a > 0, b > 0, N 1 ≥ 0, and N 2 ≥ 0. This systemis motiv<strong>at</strong>ed by studying the equ<strong>at</strong>ions of rel<strong>at</strong>ivisticnon-Abelian Chern-Simons model proposed by by Kao-Lee and Dunne and Gudnason model of N =2 supersymmetricYang-Mills-Cherns-Simons-Higgs theory. Understandingthe structure of entire radial solutions is oneof fundamental issues for the system of nonlinear equ<strong>at</strong>ions.Under certain technical conditions for a and b,we prove th<strong>at</strong> any entire radial solutions of (∗) must beone of topological, non-topological and mixed type solutions,and completely classify the asymptotic behaviors<strong>at</strong> infinity of these solutions. As an applic<strong>at</strong>ion of thisclassific<strong>at</strong>ion, we prove th<strong>at</strong> the two components u and vhave intersection <strong>at</strong> most finite times.Existence and non-existence of positive solutionson the Hardy-Littlewood-Sobolev typesystemsCongming LiShanghai Jiao Tong University, China and University ofColorado <strong>at</strong> Boulder, USAcli@colorado.eduIn this present<strong>at</strong>ion, we provide some existence, nonexistence,and classific<strong>at</strong>ion of positive solutions for Hardy-Littlewood-Sobolev type systems. In deriving these results,some useful methods are cre<strong>at</strong>ed. We will brieflyintroduce some of the involved methods.Singly periodic solutions of the Allen-Cahnequ<strong>at</strong>ion and the Toda l<strong>at</strong>ticeYong LiuNorth China Electric Power University, Chinaliuyong@ncepu.edu.cnWe study the Allen-Cahn equ<strong>at</strong>ion in the plane:−∆u = u − u 3 , in R 2 .Of interest are bounded entire solutions whose behavior<strong>at</strong> infinity is in some sense simple. Examples arethose with finite Morse index, which have been extensivelystudied in the past. Here we will construct solutionswhich are periodic in one direction in the plane, butare not doubly periodic. The core of the construction isthe one-soliton solution of the Toda l<strong>at</strong>tice, which is aclassical integrable system. This is joint work with M.Kowalczyk, F. Pacard and J. Wei.Critical Trudinger Moser equ<strong>at</strong>ion in R 2Monica MussoUniversidad C<strong>at</strong>ólica de Chile, Chilemmusso@m<strong>at</strong>.puc.cl
16 PRIMA 2013 AbstractsWe review some new results on construction of singleand multiple bubbling solutions for vari<strong>at</strong>ional problemsleading to semlinear equ<strong>at</strong>ions with nonlinearitiesof Trudinger Moser type.Multi-dimensional traveling fronts in bistablereaction-diffusion equ<strong>at</strong>ionsMasaharu TaniguchiOkayama University, Japantaniguchi-m@okayama-u.ac.jpMulti-dimensional traveling fronts have been studied bym<strong>at</strong>hem<strong>at</strong>icians for bistable reaction-diffusion equ<strong>at</strong>ionsin the whole space. Especially, cylindrically symmetrictraveling fronts have been studied by Hamel, Monneauand Roquejoffre (2005). We study traveling fronts ofcylindrically non-symmetric shapes in bistable reactiondiffusionequ<strong>at</strong>ions.Existence and regularity of mean curv<strong>at</strong>ureflow with transport termYoshihiro TonegawaHokkaido University, Japantonegawa@m<strong>at</strong>h.sci.hokudai.ac.jpGiven a compact C 1 hypersurface in R n (n ≥ 2) anda vector field u : R n × [0, ∞) → R n which belongs toL q 1,ploc ([0, ∞); Wloc (Rn )), p > n 2 · q, p ≥ 2, q > 2,q−1we prove some existence result for evolving hypersurfaceswhose velocity is given by its mean curv<strong>at</strong>ure plus u. Forthe existence, we take the singular perturb<strong>at</strong>ion limit ofthe Allen-Cahn equ<strong>at</strong>ion with additional transport term.The regularity issue is also discussed. This is a joint workwith K. Takasao.Monotonicity formula and Liouville theoremsfor stable solutions of some elliptic problemsKelei WangWuhan Institute of Physics and M<strong>at</strong>hem<strong>at</strong>ics, CAS,Chinawangkelei@wipm.ac.cnI will report some recent progress on the understandingof stable solutions to a class of second and fourth ordernonlinear elliptic equ<strong>at</strong>ions, such as the Liouvile theoremsfor stable and finite Morse index solutions and the partialregularity problems. In particular, I will discuss theapplic<strong>at</strong>ion of monotonocity formula and the method oftangent cone analysis in these problems, which goes backto W. H. Fleiming. The talk is based on joint work withJuan Davila, Louis Dupaigne and Juncheng Wei.Global bifurc<strong>at</strong>ion diagrams and exact multiplicityof positive solutions for a onedimensionalprescribed mean curv<strong>at</strong>ure problemarising in MEMSShin-Hwa WangN<strong>at</strong>ional Tsing Hua University Hsinchu, Taiwanshwang@m<strong>at</strong>h.nthu.edu.twWe study global bifurc<strong>at</strong>ion diagrams and exact multiplicityof positive solutions for the one-dimensional prescribedmean curv<strong>at</strong>ure problem arising in MEMS⎧⎪⎨⎪⎩⎛⎞′⎜ u ′ (x) ⎟ λ−⎝√⎠ =1 + (u ′ (x)) 2 (1 − u) p , u 0.Concerning this open question, we find and prove th<strong>at</strong>global bifurc<strong>at</strong>ion diagrams for 0 < p < 1 are different toand more complic<strong>at</strong>ed than those for p ≥ 1. This is jointwork with Yan-Hsiou Cheng and Kuo-Chih Hung.Synchronized and segreg<strong>at</strong>ed solutions forcoupled nonlinear Schrödinger equ<strong>at</strong>ionsZhi-Qiang WangNankai University, China and Utah St<strong>at</strong>e University, USAzhi-qiang.wang@usu.edulIn this talk we report recent work on new type of solutionsfor the coupled nonlinear Schrodinger equ<strong>at</strong>ions.Depending upon the system being <strong>at</strong>tractive or repulsivemultiple (infinitely many) synchronized or segreg<strong>at</strong>edtype solutions can be constructed, further making correl<strong>at</strong>ionbetween the coupling constants and the existenceof different type of solutions.Bubbling solutions for the Chern-SimonsmodelShusen YanThe University of New Englandsyan@turing.une.edu.auWe study the following Chern-Simons-Higgs equ<strong>at</strong>ion:{∆u +1ε 2 e u (1 − e u ) = 8πδ p, in Ω,u is doubly periodic in ∂Ω,where Ω is a rectangle. We show th<strong>at</strong> the above problemhas exactly two solutions if ε > 0 is small. This is a jointwork with Chang-Shou Lin.Gamma convergence for Maxwell-Chern-Simons-Higgs energyYong YuThe Chinese University of Hong Kong, Hong Kong, Chinayongyu@m<strong>at</strong>h.cuhk.edu.hkA gamma convergence result associ<strong>at</strong>ed with theMaxwell-Chern-Simons-Higgs energy will be presented.As a consequence, we obtain a non-local free boundaryproblem, which describes the condens<strong>at</strong>ion of vortices inthe MCSH theory. This result generalize the classicalresult on the mean field limit of the magnetic Ginzburg-Landau theory.
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- Page 48 and 49: 1 PRIMA 2013 AbstractsContents1 Pub
- Page 50 and 51: 3 PRIMA 2013 Abstractsof subfactors
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- Page 60 and 61: 13 PRIMA 2013 AbstractsRyuhei Uehar
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- Page 94 and 95: 47 PRIMA 2013 AbstractsJiaqun WeiNa
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