Representation in Fréchet Spaces of Hyperbolic Theta and Integral Operator Bases for Polynomials | ||
| Assiut University Journal of Multidisciplinary Scientific Research | ||
| Volume 53, Issue 2, May 2024, Pages 276-307 PDF (690.51 K) | ||
| Document Type: Novel Research Articles | ||
| DOI: 10.21608/aunj.2024.274816.1074 | ||
| Author | ||
| Gamal Farghali Hassan* | ||
| Mathematics Department, Faculty of Science, Assiut University | ||
| Abstract | ||
| In this study, we present a novel definition for hyperbolic Theta operator bases (HTOBs) and hyperbolic integral operator bases (HIOBs) within the context of complex calculus. We employ the constructed HTOBs and HIOBs on a specific base of polynomials (BPs) across diverse convergence regions within Fréchet spaces. Consequently, we explore the correlation between the approximation properties of the resulting base and the original one. Furthermore, we derive insights into the 𝑇𝜌 - property and the mode of increase of the polynomial bases as defined by hyperbolic Theta operator bases and hyperbolic integral operator bases. The investigation extends to various bases of special polynomials, including Chebyshev, Bessel, Gontcharaff, Euler and Bernoulli, polynomials, ensuring the robustness and applicability of the obtained results. 2000 Mathematics Subject Classification: 30 E 10, 30 D 10, 41 A 10, 26 A 33 Keywords Hyperbolic Theta operator, Basic series, Bases of polynomials, Effectiveness, Order and Type, Fréchet space. | ||
| Keywords | ||
| Basic series; Bases of polynomials; Effectiveness; Order and Type; Fréchet space | ||
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