Zero-free neighborhoods around the unit circle for Kac polynomials Gerardo BarreraPaulo Manrique OriginalPaper Open access 07 August 2021 Pages: 159 - 176
Trigonometric approximation of functions in \(L_1\)-norm Prem ChandraVarsha Karanjgaokar OriginalPaper 23 July 2021 Pages: 177 - 185
Gorenstein projective objects in comma categories Yeyang PengRongmin ZhuZhaoyong Huang OriginalPaper 16 July 2021 Pages: 186 - 202
Existence and Hyers–Ulam stability of solutions for a delayed hyperbolic partial differential equation Canan ÇelikFaruk Develi OriginalPaper 05 July 2021 Pages: 211 - 220
On closure compatibility of ideal topological spaces and idempotency of the local closure function Anika NjamculAleksandar Pavlović OriginalPaper 16 July 2021 Pages: 221 - 234
Unit groups of some multiquadratic number fields and 2-class groups Mohamed Mahmoud Chems-Eddin OriginalPaper 04 July 2021 Pages: 235 - 249
Forcing axioms and the Galvin number Shimon GartiYair HayutMenachem Magidor OriginalPaper 06 August 2021 Pages: 250 - 258
Weighted least squares estimators for the Parzen tail index Amenah Al-NajafiLászló Viharos OriginalPaper 15 July 2021 Pages: 259 - 269
Characterizing linear mappings through zero products or zero Jordan products Guangyu AnJun HeJiankui Li OriginalPaper 22 January 2022 Pages: 270 - 286
A purely exponential Diophantine equation in three unknowns Takafumi MiyazakiMasaki SudoNobuhiro Terai OriginalPaper 10 July 2021 Pages: 287 - 298
Remark on the spectral synthesis on infinite joins of finite hypergroups Kedumetse Vati OriginalPaper 06 July 2021 Pages: 299 - 302
Normal forms for rank two linear irregular differential equations and moduli spaces Karamoko DiarraFrank Loray OriginalPaper 07 August 2021 Pages: 303 - 320
Topological type of discriminants of some special families Evelia R. García BarrosoM. Fernando Hernández Iglesias OriginalPaper Open access 08 September 2021 Pages: 321 - 345
The Schwarzian derivative on Finsler manifolds of constant curvature B. BidabadF. Sedighi OriginalPaper 06 August 2021 Pages: 346 - 357
Isometries between completely regular vector-valued function spaces Mojtaba MojahediFereshteh Sady OriginalPaper 28 January 2022 Pages: 361 - 370