Common hierarchical lepton mass textures for atmospheric and solar neutrino oscillations

We propose and study a common hierarchical mass texture for both charged lepton and neutrino sectors. The texture gives rise to large (Formula presented) mixing. Also it leads to the small angle MSW effect solution for solar neutrino data. It naturally gives a small (Formula presented) oscillation relevant to the CHOOZ result in certain mass limits. A special case of only four input parameters leads to a consistent solution to neutrino oscillation and lepton masses.