Abstract
We are concerned with the approximation of functions by fractal functions with respect to \({\mathcal {L}}^p\)-norm on the Sierpiński gasket. We define the \(\alpha \)-fractal function in \({\mathcal {L}}^p\) space. The properties such as topological isomorphism and many others, which are closely associated with the fractal operator will be discussed in more detail. We also prove the existence of a non-trivial closed invariant subspace for the fractal operator. Additionally, we define set-valued mapping and discuss some useful properties.
Similar content being viewed by others
References
Aubin, J.P., Frankowska, H.: Set-Valued Analysis. Birkhäuser, Boston (1990)
Bagby, T.: \({\cal{L}}^p\), approximation by analytic functions. J. Approx. Theory 5(4), 401–404 (1972)
Barnsley, M.F.: Fractal functions and interpolation. Constr. Approx. 2, 303–329 (1986)
Barnsley, M.F.: Fractals Everywhere. Academic Press, Orlando (1988)
Bokhari, M.A., Iqbal, M.: \({\cal{L}}^2\) approximation of real-valued functions with interpolatory constraints. J. Comput. Appl. Math. 70(2), 201–205 (1996)
Cazassa, P.G., Christensen, O.: Perturbation of operators and application to frame theory. J. Fourier Anal. Appl. 3(5), 543–557 (1997)
Celik, D., Kocak, S., Özdemir, Y.: Fractal interpolation on the Sierpiński Gasket. J. Math. Anal. Appl. 337, 343–347 (2008)
Chalmers, B.L.: Convex \({\cal{L}}^p\) approximation. J. Approx. Theory 37, 326–334 (1983)
Chandra, S., Abbas, S.: The calculus of bivariate fractal interpolation surfaces. Fractals (2020). https://doi.org/10.1142/S0218348X21500663
Chandra, S., Abbas, S.: Analysis of mixed Weyl-Marchaud fractional derivative and box dimensions. Fractals (2021). https://doi.org/10.1142/S0218348X21501450
Hedberg, L.I.: Approximation in the mean by analytic functions. Trans. Am. Math. Soc. 163, 157–171 (1972)
Kigami, J.: Analysis on Fractals. Cambridge University Press, Cambridge (2001)
Massopust, P.R.: Fractal Functions, Fractal Surfaces, and Wavelets, 2nd edn. Academic Press, New York (2016)
Navascués, M.A.: Fractal polynomial interpolation. Z. Anal. Anwend. 25(2), 401–418 (2005)
Navascués, M.A.: Fractal approximation. Complex Anal. Oper. Theory 4(4), 953–974 (2010)
Navascúes, M. A., Verma, S., Viswanathan, P.: Concerning vector-valued fractal interpolation functions on the Sierpiński gasket. Mediterranean J. Mathe. (2021) (to appear)
Ri, S.-I.: Fractal Functions on the Sierpinski Gasket. Chaos Solitons Fractals 138, 110142 (2020)
Ri, S.-G., Ruan, H.-J.: Some properties of fractal interpolation functions on Sierpiński gasket. J. Math. Anal. Appl. 380, 313–322 (2011)
Ruan, H.J.: Fractal interpolation functions on post critically finite self-similar sets. Fractals 18, 119–125 (2010)
Sahu, A., Priyadarshi, A.: On the box-counting dimension of graphs of harmonic functions on the Sierpiński gasket. J. Math. Anal. Appl. 487, 124036 (2020)
Strichartz, R.S.: Differential Equations on Fractals. Princeton University Press, Princeton (2006)
Verma, S., Viswanathan, P.: A fractal operator associated with bivariate fractal interpolation functions on rectangular grids. Result Math. 75, 25 (2020)
Verma, S., Massopust, P.R.: Dimension preserving approximation. arXiv:2002.05061
Verma, S., Sahu, A.: Bounded Variation on the Sierpiński Gasket. arXiv:2010.01780
Verma, S.: Some results on fractal functions, fractal dimensions and fractional calculus. Ph.D. thesis, Indian Institute of Technology Delhi (2020)
Funding
Not applicable.
Author information
Authors and Affiliations
Contributions
Each author contributed equally in this manuscript.
Ethics declarations
Conflict of interest
We do not have any conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Agrawal, V., Som, T. \({\mathcal {L}}^p\)-Approximation Using Fractal Functions on the Sierpiński Gasket. Results Math 77, 74 (2022). https://doi.org/10.1007/s00025-021-01565-5
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00025-021-01565-5
Keywords
- Fractal interpolation functions
- fractal dimension
- Sierpiński gasket
- self-similar measure
- \({\mathcal {L}}^p\)-approximation