CHARACTERISTIC WAVE PERIOD

Characteristic Strichartz Estimates for the Wave Equation

Wave Reflection and Characteristic Impedance in the

2001The combined measurement of aortic root pressure, flow and diameter permits determination of e.g. arterial compliance (C) and characteristic impedance (Zo). These systemic circulatory properties reflect the dynamic load to the left ventricle. Obviously, it is of clinical interest to study possible effects of cardiopharmacologic intervention on C and Zo. Therefore, the specific aims of this ...

Wave Period Ratios and the Calculation of Wave Power

An informed, and accurate, characterization of the wave energy resource is an essential aspect selection of suitable sites for the first commercial installations of wave energy converters. This paper describes a detailed study on the variability of wave climate and measured spectral shapes and how they differ from the standard formulations prescribed by theory. In particular dissonance between ...

Automata and Transcendence of the Tate Period in Finite Characteristic

Using the techniques of automata theory, we give another proof of the function field analogue of the Mahler-Manin conjecture and prove transcendence results for the power series associated to higher divisor functions σk(n) = ∑ d|n d k. Let p be a prime number, and let k be an algebraic closure of Fp. Let q be a variable and consider a4, a6 ∈ k[[q]] defined by

Period Spaces for Hodge Structures in Equal Characteristic

We develop the analogue in equal positive characteristic of Fontaine’s theory for crystalline Galois representations of a p-adic field. In particular we describe the analogue of Fontaine’s mysterious functor which assigns to a crystalline Galois representation a Hodge filtration. In equal characteristic the role of the Hodge filtrations is played by Hodge-Pink structures. The later were invente...