A survey on measures of noncompactness with some applications in infinite systems of differential equations Mohammad MursaleenVladimir Rakočević Survey 27 September 2021 Pages: 489 - 514
The order structure of forts iterated by quadratic polynomials Lili YangZhiheng Yu OriginalPaper 02 April 2022 Pages: 515 - 524
Row-summable matrices with application to generalization of Schröder’s and Abel’s functional equations Ali Bayati Eshkaftaki OriginalPaper 09 August 2021 Pages: 525 - 533
Area computation for triangular area or perimeter bisecting deltoids Allan BereleStefan Catoiu OriginalPaper 05 August 2021 Pages: 535 - 547
A variant of d’Alembert’s functional equation on semigroups with an anti-endomorphism Mohamed AyoubiDriss Zeglami ReviewPaper 19 July 2021 Pages: 549 - 565
Quadratic ellipsoids in Minkowski geometries Árpád Kurusa OriginalPaper Open access 03 August 2021 Pages: 567 - 578
On the convergence of generalized power series solutions of q-difference equations Renat GontsovIrina GoryuchkinaAlberto Lastra OriginalPaper 01 June 2021 Pages: 579 - 597
On optimal inequalities between three-point quadratures Andrzej KomisarskiSzymon Wa̧sowicz OriginalPaper Open access 17 January 2022 Pages: 621 - 638
A note on generalized invertibility and invariants of infinite matrices Markus Seidel OriginalPaper Open access 28 May 2021 Pages: 639 - 652
On curves with circles as their isoptics Waldemar CieślakWitold Mozgawa OriginalPaper Open access 28 June 2021 Pages: 653 - 667
When are maps preserving semi-inner products linear? Paweł Wójcik OriginalPaper Open access 03 July 2021 Pages: 669 - 676
Distributivity equations for aggregation operations with annihilator over uninorms Dragan JočićIvana Štajner-Papuga OriginalPaper 10 August 2021 Pages: 677 - 699
Properties of Motzkin triangle and t-generalized Motzkin sequences László NémethLászló Szalay OriginalPaper Open access 05 February 2022 Pages: 701 - 721