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This repository was archived by the owner on Nov 9, 2025. It is now read-only.

Open research project on polynomial interpolation and approximation

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kolosovpetro/HistoryAndOverviewOfPolynomialP

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⚠️WarningArchived in favour toUnexpected polynomial identities arising from a classical interpolation problem

Abstract

The polynomial$\mathbf{P}^m_b(x)$ is a polynomial of degree$2m+1$ in$(x,b) \in \mathbb{R}$,defined by an identity for odd powers, closely linked to Binomial theorem and Faulhaber's formula.The odd-power identity is derived using certain interpolation techniques,including systems of linear equations, recurrence relations, and finite differences.This manuscript offers a comprehensive historical survey of the milestones and evolutionof the polynomial$\mathbf{P}^m_b(x)$, followed by related works based on it.Notable results in related works include the relation between ordinary and partial derivativesfor odd powers and finding polynomial derivatives via a double limit.Finally, the manuscript proposes future research directions.

Open research opportunities & other activities

Open research opportunities are described in the section "Future research" ofcurrent manuscript,still it is worth to duplicate them here

  • Differential equation (2.1) can be expressed in terms of backward and central differentials,as well as its dynamic equation analogs [19]
  • Definition (1.8) is closely related to discrete convolution, probably some new identitiesin terms of discrete convolution may be found
  • All kind of derivatives (forward, backward, central), including time scale ones can beexpressed as double limit similarly to [20]
  • Equation (1.8) approximates odd-power$2m+1$ in some neighborhood of fixed pointa as it shown on graphs
  • Validation and fixing grammar issues

Please note that equation and references numbers in README may not match the actual in manuscript,so refer directly toPDF

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Contributing

Contributions are welcome! 🎉

Please refer to open issues or propose your own changes.

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Build the manuscript

Refer to the documentation:BUILD.md

Licensing

This project is licensed under the GPL-3.0 License - see theLICENSE file for details.


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