نتایج جستجو برای: l_1 biharmonic surface

تعداد نتایج: 636941  

Journal: :Journal of Topology and Analysis 2023

We define a broad class of local Lagrangian intersections which we call quasi-minimally degenerate (QMD) before developing techniques for studying their Floer homology. In some cases, one may think such as modeled on minimally functions defined by Kirwan. One major result this paper is: if $L_0,L_1$ are two submanifolds whose intersection decomposes into QMD sets, there is spectral sequence con...

Journal: :Colloquium Mathematicum 1971

Journal: :Czechoslovak Mathematical Journal 1991

1997
M. Arad A. Yakhot G. Ben-Dor

The coefficients for a nine-point high-order accuracy discretization scheme for a biharmonic equation∇4u = f(x, y) (∇2 is the two-dimensional Laplacian operator) are derived. The biharmonic problem is defined on a rectangular domain with two types of boundary conditions: (1) u and ∂u/∂n or (2) u and ∂u/∂n (where ∂/∂n is the normal to the boundary derivative) are specified at the boundary. For b...

2005
JAMES BRAMBLE XUEJUN ZHANG

Abstract. We consider multigrid algorithms for the biharmonic problem discretized by conforming 1 finite elements. Most finite elements for the biharmonic equation are nonnested in the sense that the coarse finite element space is not a subspace of the space of similar elements defined on a refined mesh. To define multigrid methods, certain intergrid transfer operators have to be constructed. W...

2014
Wolfgang Krendl Walter Zulehner Michael Kuhn Michael Jung Ulrich Langer Sergei V. Nepomnyaschikh Ralf Pfau Joachim Schöberl WOLFGANG KRENDL WALTER ZULEHNER

For the first biharmonic problem a mixed variational formulation is introduced which is equivalent to a standard primal variational formulation on arbitrary polygonal domains. Based on a Helmholtz decomposition for an involved nonstandard Sobolev space it is shown that the biharmonic problem is equivalent to three (consecutively to solve) second-order elliptic problems. Two of them are Poisson ...

2003
Changyou Wang

For a domain R and a Riemannian manifold N R. If u 2 W ( ; N) is an extrinsic (or intrinsic, respectively) biharmonic map. Then u 2 C( ; N). x

2012
Wenwu Pan Lin Li Adina Luminiţa Sasu

In this paper, we establish the existence of at least three solutions to a Navier boundary problem involving the biharmonic equation. The technical approach is mainly base on a three critical points theorem of B. Ricceri. AMS Subject Classifications: 34B15.

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