Current quark mass and g-2 of muon and ee-->\pi\pi

Based on an effective chiral theory of mesons the dependences of $\rho-\omega$ mixing and the vertex $\omega\pi\pi$ on $m_d-m_u$ are found. The form factor of pion agrees with data in both space- and time-like regions. CVC is satisfied. The values of g-2 of muon from $\pi\pi$ channel are calculated in the range of $q^2<1.3^2 GeV^2$.Comment: 14 pages anf three figures 14 pages and three figure

A short note on small deviations of sequences of i.i.d. random variables with exponentially decreasing weights

We obtain some new results concerning the small deviation problem for $S=\sum_n q^n X_n$ and $M=\sup_n q^n X_n$, where $0<q<1$ and $(X_n)$ are i.i.d. non-negative random variables. In particular, the asymptotics is shown to be the same for $S$ and $M$ in some cases.Comment: Revision, 13p, to appear in: Statist. Probab. Let