▁theories ▁( see , ▁e . g . ▁) ▁and ▁did ▁everything ▁possible ▁for ▁the ▁development ▁of ▁Armen ian ▁Mathemat ical ▁School ▁to ▁the ▁high ▁international ▁standards ▁in ▁many ▁branches ▁of ▁mathematics . ▁ ▁Family ▁ ▁Dj rb ash ian ▁was ▁born ▁to ▁an ▁old ▁Van ▁family , ▁established ▁before ▁ 1 4 th ▁century , ▁long ▁before ▁Ott oman ▁Empire ▁arose , ▁by ▁a ▁successful ▁merchant ▁who ▁returned ▁to ▁his ▁father land ▁from ▁Iran ▁and ▁bought ▁a ▁piece ▁of ▁land ▁in ▁A yg est an ▁( Ar men ian : ▁ Ա յ գ ե ս տ ա ն , ▁i . e . ▁gard ens ) ▁district ▁of ▁the ▁town ▁Van . ▁The ▁community ▁water ▁source ▁was ▁in ▁his ▁land , ▁and ▁his ▁family ▁got ▁the ▁oblig ation ▁to ▁just ly ▁dist ribute ▁the ▁scar ce ▁water ▁among ▁the ▁channels ▁to ▁A yg est an ▁gard ens ▁for ▁many ▁centuries , ▁according ▁to ▁quot as ▁established ▁by ▁the ▁community . ▁This ▁gave ▁rise ▁to ▁the ▁family ▁name ▁Jer bash kh ian ▁( Ar men ian : ▁ <0xD5> <0x8B> ր բ ա շ <0xD5> <0xAD> յ ա ն , ▁i . e . ▁water ▁distrib utor ). ▁M kh itar ▁Dj rb ash ian ' s ▁father ▁M k rt ich ▁was ▁one ▁of ▁the ▁ 7 ▁found ers ▁of ▁Van ▁Gu ild ▁of ▁Mer ch ants ▁which ▁for es aw ▁the ▁possibility ▁of ▁Turkish ▁military ▁actions ▁against ▁the ▁civil ian ▁population ▁of ▁their ▁town ▁and ▁started ▁to ▁reserve ▁weapons ▁for