A note on the cosine operator function for Mellin sampling seriesKivinukk, Andi; Tamberg, GertSampling theory signal processing and data analysis2024 / 16 p https://doi.org/10.1007/s43670-023-00081-7 On a cosine operator function framework of approximation processes in banach spaceKivinukk, Andi; Saksa, Anna; Zeltser, MariaFilomat2019 / p. 4213-4228 https://doi.org/10.2298/FIL1913213K Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS On approximation by Blackman- and Rogosinski-type operators in Banach spaceKivinukk, Andi; Saksa, AnnaProceedings of the Estonian Academy of Sciences2016 / p. 205-219 http://dx.doi.org/10.3176/proc.2016.3.01 http://www.ester.ee/record=b2355998*est On approximation processes defined by a cosine operator functionKivinukk, Andi; Saksa, Anna; Zeltser, MariaProceedings of the Estonian Academy of Sciences2017 / p. 214-224 https://doi.org/10.3176/proc.2017.2.11 http://www.ester.ee/record=b2355998*est On Rogosinski-type approximation processes in Banach space using the framework of the cosine operator functionKivinukk, Andi; Saksa, AnnaMathematical Foundations of Computing2022 / p. 197-218 https://doi.org/10.3934/mfc.2021030 Journal metrics at Scopus Article at Scopus