
richard lyons (ganitshastri)

richard neel leones (janm 22 janwari, 1945 koo newyork shahar, newyork mein) ack americi ganitshastri hain, joe seemit samooh siddhant mein visheshagyata rakhate hain.
leones ney 1970 mein shikago vishvavidyalaya mein johnn griggs thompson key tahat "chhote 2-rank vaale kuchh seemit saral samoohon key lakshan varnan" sheershak seey ack shodh prabandh key saath apani phd praapt kii. 1972 seey 2017 taka way rutgers vishvavidyalaya mein professor rahey.
daniel gorenstein aur ronald soloman key saath unhone likhaa, aur likhana jaari rakhaa haye, abb inna capdebosk key saath, seemit saral samoohon key liye vargeekaran karyakram kii doosari peedhi key pramaan parr ack shrinkhala. iss shrinkhala key abb taka nau khand prakaashit hoe chuke hain. unhone ack chhitput samooh kii khoj kii jiska nirmaan charles sims ney kiya aur usey lyon samooh "lii" kahaa.
2012 mein, unhone lyroy pee. ganitiya pradarshani key liye steel puraskar, americi ganitiya samaaj dwara michael ashbacker, stephen dee key saath pradaan kiya gayaa. smith aur ronald soloman.
2013 mein, vaha 26 chhitput seemit saral samoohon mein seey ack kii khoj sahit seemit saral samoohon key vargeekaran mein yogdan key liye americi ganitiya samaaj key sadasya bunn gaye.".

