3 papers
math.FA2026
Extreme and exposed points of shift-invariant spaces generated by Gaussian kernel and hyperbolic secant
Markus Valås Hagen, Alexander Ulanovskii, Denis Zelent +1
We characterize the extreme and exposed points of the unit ball (with respect to the -norm) in the shift-invariant space generated by the Gaussian function, as well as in the…
math.NT2025
On Goldbach numbers in short intervals
Andrés Chirre, Markus Valås Hagen
Assuming the Riemann Hypothesis, we prove that for all , there exists at least one even integer within the interval , that can be expressed as the sum o…
math.NT2024
Sharp conditional moment bounds for products of -functions
Markus Valås Hagen
Assuming the Generalized Riemann Hypothesis and the Generalized Ramanujan Conjecture, we determine the order of the th moment of a product of distinct irreducible…