Numerical approximation of fractional powers of elliptic operators
| Autor: | Beiping Duan, Joseph E. Pasciak, Raytcho D. Lazarov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Unbounded operator
Pure mathematics Applied Mathematics General Mathematics Numerical analysis Hilbert space Inverse 010103 numerical & computational mathematics Positive-definite matrix Eigenfunction 01 natural sciences Quadrature (mathematics) 010101 applied mathematics Computational Mathematics symbols.namesake Elliptic operator symbols 0101 mathematics Mathematics |
| Zdroj: | IMA Journal of Numerical Analysis. 40:1746-1771 |
| ISSN: | 1464-3642 0272-4979 |
| DOI: | 10.1093/imanum/drz013 |
| Popis: | In this paper, we develop and study algorithms for approximately solving linear algebraic systems: ${{\mathcal{A}}}_h^\alpha u_h = f_h$, $ 0< \alpha |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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