2021/99/1-2
A class of strongly nonlinear integral equations on the space of vector measures and their optimal control
Nasir Uddin Ahmed
Arithmetics in number systems with cubic base
Magdaléna Tinková
Cohomogeneity one conformal actions on the $3$-sphere and the three-dimensional Euclidean space
Parviz Ahmadi and Masoud Hassani
Constrained triangulations, volumes of polytopes, and unit equations
Michael Kerber, Robert Tichy and Mario Weitzer
Extension of the best polynomial approximation operator in Musielak—Orlicz spaces
Tengiz Kopaliani, Nino Samashvili and Shalva Zviadadze
Flat manifolds with homogeneous holonomy representation
Rafał Lutowski
On cyclic quadrilaterals in Euclidean and hyperbolic geometries
Gendi Wang, Matti Vuorinen and Xiaohui Zhang
Wintgen inequality for surfaces in Hessian manifolds
Leila Samereh and Ion Mihai
Almost-additive and almost-multiplicative functions with regularity properties
Jean-Marie De Koninck, Imre Kátai and Bui Minh Phong
Computing singularities of the spectra of representation rings of finite groups
André Gimenez Bueno, Renato Vidal Martins, Edney Oliveira and Csaba Schneider
Surgeries of the Gieseking hyperbolic ideal simplex manifold
Emil Molnár, István Prok and Jenő Szirmai
On additive functions with additional derivation properties
Richárd Grünwald and Zsolt Páles
Approximation by matrix transform of Vilenkin—Fourier series
István Blahota and Károly Nagy
The reciprocal character of the conjugation action
Benjamin Sambale