机构地区: 兰州大学数学与统计学院
出 处: 《兰州大学学报(自然科学版)》 2007年第2期112-116,共5页
摘 要: 讨论了一类一维反向热传导问题,利用Fourier正则化方法给出了正则近似解,得到了H(?)lder型误差估计.同时通过提高先验光滑性假设,并利用Tikhonov正则化方法得到了对数型稳定性估计,解决了零点的收敛性问题. A class of one-dimensional backward heat conduction problems are discussed and a Fourier regularization approximating solution with HSlder type stability estimate is given. Moreover, by improving the a priori assumption, a Tikhonov regularization approximating solution with logarithmic type stability estimate is also given and the convergence of the solution at t =0 is proved.