When we use Modified Configuration Interaction method(MCI) to calculate the correlation energy of double electron systems, for obtaining the higher precision, we always need huge calculations. In order to handle this...When we use Modified Configuration Interaction method(MCI) to calculate the correlation energy of double electron systems, for obtaining the higher precision, we always need huge calculations. In order to handle this problem, which will cost much CPU time and memory room if only using a single computer to do it, we now adopt the parallel multisection recurrence algorithm. Thus we can use several CPUs to get the ground state energy of a Helium atom at the same time.展开更多
This paper is concerned with the solvability of a second-order integro-differential equation with Dirichlet boundary conditions on the real line. Under some conditions on the real parameters and coefficients, some exi...This paper is concerned with the solvability of a second-order integro-differential equation with Dirichlet boundary conditions on the real line. Under some conditions on the real parameters and coefficients, some existence results are presented. We mainly use fixed point arguments.展开更多
文摘When we use Modified Configuration Interaction method(MCI) to calculate the correlation energy of double electron systems, for obtaining the higher precision, we always need huge calculations. In order to handle this problem, which will cost much CPU time and memory room if only using a single computer to do it, we now adopt the parallel multisection recurrence algorithm. Thus we can use several CPUs to get the ground state energy of a Helium atom at the same time.
文摘This paper is concerned with the solvability of a second-order integro-differential equation with Dirichlet boundary conditions on the real line. Under some conditions on the real parameters and coefficients, some existence results are presented. We mainly use fixed point arguments.
