On a problem of V. Pták
On a proof of the Erdős-Monk theorem.
On a property of convex functions.
On a property of Gram's determinant.
On a question of Milman and Alesker concerning the monotonicity of a domain functional.
On a residual set of continuous functions
On a reverse of a Hardy-Hilbert type inequality.
On a reverse of Jessen's inequality for isotonic linear functionals.
On a semigroup of modular functions with involution.
On a set in under coordinate transformations
On a Singular Value Problem for the Fractional Laplacian on the Exterior of the Unit Ball
2000 Mathematics Subject Classification: Primary 26A33; Secondary 47G20, 31B05We study a singular value problem and the boundary Harnack principle for the fractional Laplacian on the exterior of the unit ball.
On a strengthened Hardy-Hilbert inequality.
On a subclass of the family of Darboux functions
We investigate functions f: I → ℝ (where I is an open interval) such that for all u,v ∈ I with u < v and f(u) ≠ f(v) and each c ∈ (min(f(u),f(v)),max(f(u),f(v))) there is a point w ∈ (u,v) such that f(w) = c and f is approximately continuous at w.
On a superadditivity property of Gram's determinant.
On a symmetric divergence measure and information inequalities.
On a system of functional equations.
On a theorem of B. Barna.
On a theorem of Holický and Zelený concerning Borel maps without -compact fibers
The paper is concerned with a recent very interesting theorem obtained by Holický and Zelený. We provide an alternative proof avoiding games used by Holický and Zelený and give some generalizations to the case of set-valued mappings.
On a Theorem of M. Vuilleumier
On a theorem of Popa and Noiri on multifunctions