A Theorem on the Geometric Mean of an Entire Function
On Absolute a-summability factors
On │Ñ Pn ׀k | Summability Factors of Infinite Series
Comparison and Oscillation Theorems for singular Ultrahyperbolic Equations
Radii of Valence of Certain Analytic Functions with Negative Coefficients
Helmholtz Equation and WKB Approximation in the Tidal wawe Propagation
The Interior and Exterior Problems For The Generalized Poly-Axially Symmetric Helmholtz Equation