Masaya Sato (1932–2010)

Sato 22_6

The silencing of tumor suppressor genes (TSGs) by aberrant hypermethylation occurs frequently in human cancer. Recently the RUNX3 gene was identified as a TSG inactivated by hypermethylation. We examined RUNX3 expression by reverse transcription-PCR and the methylation status of this gene by methylation specific-PCR in 43 lung cancer cell lines and 120 primary non-small cell lung cancer (NSCLC)...

Masaya Mukai and Keigo Shibayama

InterviewwithMikio Sato

Mikio Sato is a mathematician of great depth and originality. He was born in Japan in 1928 and received his Ph.D. from the University of Tokyo in 1963. He was a professor at Osaka University and the University of Tokyo before moving to the Research Institute for Mathematical Sciences (RIMS) at Kyoto University in 1970. He served as the director of RIMS from 1987 to 1991. He is now a professor e...

Sato-Tate distributions

be the trace of Frobenius. By a theorem of Hasse, each normalized trace xp := ap/ p p is a real number in the interval [−2, 2]. The xp vary with p in an apparently unpredictable way, and in the absence of any other information, one might suppose that they should be uniformly distributed over [−2, 2]. A few experiments quickly dispels this notion (here is a typical example), however, the distrib...

Ramanujan-Sato-Like Series

Using the theory of Calabi–Yau differential equations we obtain all the parameters of Ramanujan–Sato-like series for 1/π2 as q-functions valid in the complex plane. Then we use these q-functions together with a conjecture to find new examples of series of non-hypergeometric type. To motivate our theory we begin with the simpler case of Ramanujan–Sato series for 1/π .