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Upper and Lower Bounds for Eigenvalues of the Elliptic Operator by Weak Galerkin Quadrilateral Spectral Element Methods.

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Title: Upper and Lower Bounds for Eigenvalues of the Elliptic Operator by Weak Galerkin Quadrilateral Spectral Element Methods.
Authors: Xu, Xiaofeng1 (AUTHOR), Pan, Jiajia1 (AUTHOR) panjiajia21@usst.edu.cn
Source: Axioms (2075-1680). Mar2026, Vol. 15 Issue 3, p195. 19p.
Database: Academic Search Ultimate
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  Data: Upper and Lower Bounds for Eigenvalues of the Elliptic Operator by Weak Galerkin Quadrilateral Spectral Element Methods.
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  Data: <searchLink fieldCode="JN" term="%22Axioms+%282075-1680%29%22">Axioms (2075-1680)</searchLink>. Mar2026, Vol. 15 Issue 3, p195. 19p.
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=asn&AN=192637637
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        Value: 10.3390/axioms15030195
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      – Code: eng
        Text: English
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        PageCount: 19
        StartPage: 195
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      – TitleFull: Upper and Lower Bounds for Eigenvalues of the Elliptic Operator by Weak Galerkin Quadrilateral Spectral Element Methods.
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            NameFull: Xu, Xiaofeng
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              Text: Mar2026
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              Y: 2026
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