ACTA MATHEMATICA HUNGARICA

Weighted mixed-norm inequality on Doob’s maximal operator and John–Nirenberg inequalities in Banach function spaces

Homotopy investigation of classifying spaces of cobordisms of singular maps

Weak compactness and metrizability of Mackey*-bounded sets in Fréchet spaces

A range matrix-type criterion for the self-adjointness of symmetric linear relations

Spherical and moment functions on the affine group of SU(n)

Recurrence relation and multi-indexed polynomials of the second kind

Combinatorial characterization of pseudometrics

On weakly semiconformally symmetric manifolds

On the intersections of the Besicovitch sets and exceptional sets in the Erdős–Rényi limit theorem

Commutativity in the lattice of topologizing filters of a ring – localization and congruences

A class of nowhere differentiable functions satisfying some concavity-type estimate

On stability and hyperstability of additive equations on a commutative semigroup

On the values of representation functions

An isomorphic property in spaces of compact operators and some classes of operators on C(K,X)

Classifying spaces for projections of immersions with controlled singularities

Completely distributive completions of posets

Strong limit theorems for arrays of rowwise independent random variables under sublinear expectation

On the behavior of roots of trinomial equations

Roberts orthogonality for $${2 \\times 2}$$2×2 complex matrices

Forcing and Construction Schemes

On the extensibility of \\(D(-1)\\)-pairs containing Fermat primes

Representable extensions of positive functionals and hermitian Banach *-algebras

A note on the arithmetic nature of some infinite series

Local properties of topological spaces and remainders in compactifications

Zero-dimensional CDH spaces with a dense completely metrizable subset

Necessary and sufficient conditions for complete convergence of double weighted sums of pairwise independent identically distributed random elements in Banach spaces

On the p-adic properties of Stirling numbers of the first kind

$$\\mathcal{J}_H$$-Regular Borel measures on locally compact abelian groups

On the Diophantine equation $${y^{p} = \\frac{f(x)}{g(x)}}$$yp=f(x)g(x)

A note on resolvability

An elementary proof that the Borel class of the reals has cardinality continuum

Inverse images of open sets under gradient mapping

Spectral synthesis for the space of tempered solutions of a convolution system on discrete Abelian groups

On the convergence of permutations of multiple orthogonal series

On the existence of periodic solutions to constrained Lagrangian systems

Characterization of reflexive closure of some operator algebras acting on Hilbert $${C^{\\star}}$$C⋆-modules

Digit frequencies of beta-expansions

The general linear equation on open connected sets

The Fitting length of a product of mutually permutable finite groups

Explicit bounds of complex exponential frames on a complex field

Non-Oscillation of half-linear difference equations with asymptotically periodic coefficients

An additive equation involving fractional powers

On the complete convergence of sequences of random elements in Banach spaces

Functions of bounded p-variation and weighted integrability of Fourier transforms

On Problem 57 of the Scottish Book

Maximal and generalized fractional integral operators in grand Morrey martingale spaces

The regular topology on C(X, Y)