Tauberian Theorem for Mellin Transform of Hyperfunctions Having Bounded Exponential Growth

A. N. Deepthi *

KKTM Government College, Pullut Thrissur, Kerala, India.

*Author to whom correspondence should be addressed.


Abstract

Hyperfunctions provide a complex analytic framework for representing singular objects that cannot always be treated adequately by ordinary functions or distributions. The Mellin transform is a central tool for analysing scaling behaviour and asymptotic properties, while Tauberian theorems give conditions under which information about a transform determines corresponding properties of the original object. This paper establishes a Tauberian theorem for the Mellin transform of measurable hyperfunctions having bounded exponential growth and support contained in [1,∞). After recalling the necessary notions concerning hyperfunctions, support, singular support, bounded exponential growth, Mellin transforms, and Dirichlet integrals, the study relates the Mellin transform of a hyperfunction on the positive real axis to the Laplace transform under the substitution y = e−s. The main result assumes a measurable hyperfunction g(y) with |g(y)| ≤ \(\frac{N}{y}\) for y > 0 and a Mellin transform that extends holomorphically to an open set containing the half-plane Re t < 1. Under these hypotheses, the integral \(\int ^∞_0\) g(y)dy is shown to converge, and its value is identified with the holomorphic continuation at t = 1, namely ˆg(1). The result adapts a Tauberian theorem for Dirichlet integrals to the setting of hyperfunctions and clarifies the link between Mellin-transform behaviour and convergence of the original hyperfunction integral.

Keywords: Tauberian theorem, Mellin transform, hyperfunctions, bounded exponential growth, Sato hyperfunctions, right-sided originals, Dirichlet integrals, Laplace transform, integral transforms, asymptotic analysis


How to Cite

Deepthi, A. N. 2026. “Tauberian Theorem for Mellin Transform of Hyperfunctions Having Bounded Exponential Growth”. Asian Research Journal of Mathematics 22 (7):65-73. https://doi.org/10.9734/arjom/2026/v22i71117.

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