Theorie der Körper von Matrizen.
Théorie des indices par rapport à une courbe et une surface du second degré
Théorie des indices par rapport à une courbe et une surface du second degré
Time delay in chemical exchange during an NMR pulse
Spin exchange with a time delay in NMR (nuclear magnetic resonance) was treated in a previous work. In the present work the idea is applied to a case where all magnetization components are relevant. The resulting DDE (delay differential equations) are formally solved by the Laplace transform. Then the stability of the system is studied using the real and imaginary parts of the determinant in the characteristic equation. Using typical parameter values for the DDE system, stability is shown for all...
Transformations preserving the Hankel transform.
Two divisors of summing up to
In this short note, we give an affirmative answer to a question of Ayad from [1].