elliptic-parabolic operators of second order and their associated diffusions. , 25(6):651–713, 1972.

[^1]: The research of the first author was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) grant funded by the Korea government(2017R1C1B1002830)

[^2]: The research of the second author was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) grant funded by the Korea government (2017R1D1A1B03033255)
Story highlights

Syria mission marks first time OPCW inspectors will be sent into a live war zone

OPCW has been on the ground in Syria since October 1 and won this year's Nobel Peace Prize

A team of international investigators is exploring a site for chemical weapons when a sudden explosion rips through the air, scattering the workers and terrified civilians, who make a frantic run for cover in the ensuing chaos.

In a split second, this group of inspectors from the Organisation for the Prohibition of Chemical Weapons have become de facto field medics, scouring the scene for survivors and administering first aid to those injured in the blast.

It is only after the inspectors have dressed the wounds of all the victims that an instructor appears and tells the men he