BOUNDARY VALUE-FREE MAGNETIC RESONANCE ELECTRICAL PROPERTIES TOMOGRAPHY BASED ON THE GENERALIZED CAUCHY FORMULA WITH THE COMPLEX-DERIVATIVE BOUNDARY CONDITION
نویسندگان
چکیده
منابع مشابه
Nvestigation of a Boundary Layer Problem for Perturbed Cauchy-Riemann Equation with Non-local Boundary Condition
Boundary layer problems (Singular perturbation problems) more have been applied for ordinary differential equations. While this theory for partial differential equations have many applications in several fields of physics and engineering. Because of complexity of limit and boundary behavior of the solutions of partial differential equations these problems considered less than ordinary case. In ...
متن کاملOn the Cauchy Problem for the Derivative Nonlinear Schrödinger Equation with Periodic Boundary Condition
It is shown that the Cauchy problem associated to the derivative nonlinear Schrödinger equation ∂tu − i∂ xu = λ∂x(|u| u) is locally well-posed for initial data u(0) ∈ H(T), if s ≥ 1 2 and λ is real. The proof is based on an adaption of the gauge transformation to periodic functions and sharp multi-linear estimates for the gauge equivalent equation in Fourier restriction norm spaces. By the use ...
متن کاملA Parabolic Free Boundary Problem with Bernoulli Type Condition on the Free Boundary
Consider the parabolic free boundary problem ∆u− ∂tu = 0 in {u > 0} , |∇u| = 1 on ∂{u > 0} . For a realistic class of solutions, containing for example all limits of the singular perturbation problem ∆uε − ∂tuε = βε(uε) as ε → 0, we prove that one-sided flatness of the free boundary implies regularity. In particular, we show that the topological free boundary ∂{u > 0} can be decomposed into an ...
متن کاملTHE STEFAN PROBLEM WITH KINETIC FUNCTIONS AT THE FREE BOUNDARY
This paper considers a class of one-dimensional solidification problem in which kinetic undercooling is incorporated into the temperature condition at the interface. A model problem with nonlinear kinetic law is considered. The main result is an existence theorem. The mathematical effects of the kinetic term are discussed
متن کاملComplex Coordinate Stretching as a Generalized Absorbing Boundary Condition
By complex coordinate stretching and a change of ̈ariables, it is shown simply that PML is reflectionless for all frequencies and all angles. Also, Maxwell’s equations for PML media reduce to ordinary Maxwell’s equations with complex coordinate systems. Many closed-form solutions for Maxwell’s equations map to corresponding closed-form solutions in complex coordinate systems. Numerical simulati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Progress In Electromagnetics Research M
سال: 2020
ISSN: 1937-8726
DOI: 10.2528/pierm20062202