Almost maximal lepton mixing with largeTviolation in neutrino oscillations and neutrinoless double beta decay

We point out two simple but instructive possibilities to construct the charged lepton and neutrino mass matrices, from which the nearly bimaximal neutrino mixing with large T violation can naturally emerge. The two lepton mixing scenarios are very compatible with current experimental data on solar and atmospheric neutrino oscillations, and one of them may lead to an observable T-violating asymmetry between ${\nu }_{\mu }\to {\nu }_e$ and ${\nu }_e\to {\nu }_{\mu }$ transitions in the long-baseline neutrino oscillation experiments. Their implications for the neutrinoless double beta decay are also discussed.