A new type of Distributed Inverse Solution (DIS) is proposed: Variable Resolution Electric and Magnetic Tomography (VARETA). This method is a weighted minimum norm Solution in which a regularization… Expand

This paper shows how the sampling theorem relates with the variations along time of the second order statistics of L2(ℝ) nonstationary processes.Expand

We show that positive definite kernel functions k(x, y), if continuous and integrable along the main diagonal, coincide with kernels of positive integral operators in L2(R). Such an operator is shown… Expand

This paper shows how the sampling theorem relates with the variations along time of the second order statistics of L 2 (R) non stationary processes. As a consequeRl; �, and minly ?�e toe positive… Expand