Michał Kijaczko. Improved Hardy and Rellich inequalities for antisymmetric and odd functions. [arXiv]
Michał Kijaczko. Asymptotics of weighted Gagliardo seminorms. [arXiv]
Krzysztof Bogdan, Kajetan Jastrzębski, Moritz Kassmann, Michał Kijaczko, Paweł Popławski. Shot-down stable processes. [arXiv]

Bartłomiej Dyda, Michał Kijaczko. Sharp fractional Hardy inequalities with a remainder for 1<p<2. J. Funct. Anal. 286 (2024), no. 9, 110373. [arXiv][online]
Bartłomiej Dyda, Michał Kijaczko. Sharp weighted fractional Hardy inequalities. Studia Math. 274 (2024), no. 2, 153–171. [arXiv][online]
Michał Kijaczko, Julia Lenczewska. Sharp Hardy inequalities for Sobolev-Bregman forms. Mathematische Nachrichten 297 (2024), 549–559. [arXiv] [online]
Michał Kijaczko. Fractional Sobolev spaces with power weights. Ann. Sc. Norm. Super. Pisa Cl. Sci. (5). Vol. XXIV (2023), 1741-1764 [arXiv] [online]
Bartłomiej Dyda, Michał Kijaczko. On density of compactly supported smooth functions in fractional Sobolev spaces. Annali di Matematica Pura ed Applicata. 2022 (4) 201, no.4, 1855–1867. [arXiv] [online]
Bartłomiej Dyda, Michał Kijaczko. On density of smooth functions in weighted fractional Sobolev spaces. Nonlinear Analysis - Theory Methods & Applications. 2021, vol. 205, art. 112231, s. 1-10. [arXiv] [online]
Michał Kijaczko. Multinomial coefficients, multiple zeta values, Euler sums and series of powers of the Hurwitz zeta function. Functiones et Approximatio Commentarii Mathematici. 2020, vol. 62, nr 2, s. 227-245.

Hardy and Rellich inequalities for antisymmetric and odd functions, Probability and Analysis 2024, Będlewo, Poland, 22-26.04.2024
Fractional Sobolev spaces with power weights, Probability and Analysis 2022, Wrocław, Poland, 19-23.09.2022
On density of compactly supported smooth functions in fractional Sobolev spaces, Probability and Analysis 2021, Wrocław, Poland (online), 24-28.05.2021