Number Theory in Memory of Eduard Wirsing

Life and Work of Eduard Wirsing.- Remembering Eduard Wirsing.- Personal Memories.- On the Infimum of the Absolute Value of Successive Derivatives of a Real Function Defined on a Bounded Interval.- Friable Averages of Oscillating Arithmetic Functions.- Ein quaternäres Waring-Goldbach-Problem.- Coprimality of Consecutive Elements in a Piatetski-Shapiro Sequence.- Wirsing's Elementary Proofs of the Prime Number Theorem with Remainder Terms.- Diophantine Analysis Around .[1, 2, 3, . . . ].- On a Smoothed Average of the Number of Goldbach Representations.- Estimates for k-Dimensional Spherical Summations of Arithmetic Functions of the GCD and LCM.- The Rational Points Close to a Space Curve.- Twists by Dirichlet Characters and Polynomial Euler Products of L-Functions, II.- Solving the Iterative Differential Equation .-?gt = g-1.- Irrationality of Zeros of the Digamma Function.- Generalizations of Menon's Arithmetic Identity.- On a Conjecture ofDescartes.- On the Greatest Common Divisor of a Number and Its Sum of Divisors, II.- Permutations with Arithmetic Constraints.- Large Subsums of the Möbius Function.- The a-Points of the Riemann Zeta-Function and the Functional Equation.- Braided Gibonacci Sequences on Residue Classes.