Every such module is either an irreducible highest or an irreducible lowest weight module, or an irreducible module of the intermediate series. Furthermore, we use a twisted version of Feigin–Fuchs ...

The mechanism of current-collection failure resulting from corrosion of front electrodes is investigated by AC impedance measurement of PV cells and modules degraded by acetic acid. In addition to our ...

There is a lot more to math than just equations on a chalkboard. It is a very useful set of tools for tackling problems in many different fields. Math tactics […] ...

The math gap between boys and girls appears just four months after starting school A sweeping study in ‘Nature’ shows that boys start pulling ahead of girls despite no initial differences, and points ...