Some studies on mathematical models for general elastic multi-structures

<p style='text-indent:20px;'>An efficient finite element method for the fourth order problems in a spherical domain will be solved in this paper. Initially, we derive the necessary pole conditions with the intention of overcoming the difficulty of singularity introduced by spherical coordinate transformation. Then the original problem is transformed into a series of equivalent one-dimensional problems by utilizing spherical harmonic functions expansion. Secondly, we introduce some appropriate weighted Sobolev spaces and derive weak form and corresponding discrete form for each one-dimensional fourth order problem based on these pole conditions. In addition, we illustrate the error estimate of the approximate solutions by employing Lax-milgram lemma and approximation property of the cubic Hermite interpolation operator. Eventually, we present the algorithm in detail and show its efficiency through some numerical examples.</p>

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An efficient finite element method and error analysis for fourth order problems in a spherical domain

Peng

Han

2022

DCDS-B

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Some studies on mathematical models for general elastic multi-structures

Cited by 1 publication

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An efficient finite element method and error analysis for fourth order problems in a spherical domain

An efficient finite element method and error analysis for fourth order problems in a spherical domain

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