<prompt> Fingqa isihloko: Umdlali osebenza eBaltimore Ravens kusobala ukuthi uyazi ukuthi yini okufanele ayenze ngoba wafika eNFL - kodwa kusobala ukuthi lo mdlali naye ujwayelene nomugqa wezinombolo. Umgadli ohlaselayo uJohn Urschel muva nje ube nephepha locwaningo lwezibalo elishicilelwe kuyi-Journal of Computational Mathematics. Lo mdlali oneminyaka engu-23 ubudala, owaziwa nge-MathMeetsFball ku-Twitter ngemuva kokuphothula iziqu zakhe ePennsylvania State University nge-4.0 GPA kanye ne-masters degree in mathematics, naye waqhudelana emqhudelwaneni we-chess okokuqala ngqa ekuqaleni kwale nyanga. Skrolela phansi ukuze ubone ividiyo. Umgadli ohlaselayo uJohn Urschel ushicilele iphepha lezibalo futhi waqhudelana emqhudelwaneni we-chess kule sizini. U-Ursche utheube nesikhathi esimnandi ekhuluma ekilasini lezibalo eziphambili esikoleni esiphakeme ekuqaleni kwale nyanga. Iphepha lika-Urschel le-Computational Mathematics labhalwa ngokubambisana noLudmil Zikatanov, uJinchao Xu kanye noXiaozhe Hu. Leli phepha lalinesihloko esithi, A Cascadic Multigrid Algorithm for Computing the Fiedler Vector of Graph Laplacians, futhi labhalwa nguLudmil Zikatanov, Jinchao Xu noXiaozhe Hu. Ingxenye ye-abstract ifundeka kanje: Kuleli phepha, sakha i-algorithm ye-cascadic multigrid yokubala okusheshayo kwe-Fiedler vector yegrafu yeLaplacian, okungukuthi, i-eigenvector ehambelana ne-equivalent yesibili encane kunazo zonke. Leli vector liye latholakala ukuthi linokusetshenziswa emikhakheni enjengokuhlukanisa amagrafu nokudweba amagrafu. Leli phepha lanyatheliswa ngo - March 17, ngemva kwezinsuku ezintathu nje kuphela kwePi Day. U-Urschel, ozibiza ngokuthi uyisazi sezibalo esinyathelisiwe kanye nomsubathi wezobuciko, wagubha zombili lezi zenzakalo ku-Twitter. Lo mdlali oneminyaka engu-23 ubudala uthumela izinto eziningi ezihlobene nezibalo ngenkathi esebenzisa igama elithi MathMeetsFball kuTwitter. Ngo-March 14, wabhala: Ujabule Usuku LukaPi!!! Zinike isikhathi sokuhlola zonke izimfanelo zayo nezinto ezimangalisayo ezihilelekile. Engikuthanda kakhulu yi-Eulers identity. Ngasekuqaleni kwenyanga, wabhala ngokuncintisana ePittsburgh Open Chess Grand Prix. U-Urschel wabhala: Ngisanda kuqeda umqhudelwano wami wokuqala we-chess. Ushaye kathathu...  <response>: Umgadli ohlaselayo uJohn Urschel uneziqu ze-master ezifundweni zezibalo. Lo mfana oneminyaka engu-23 ubudala wayenesilinganiso esingu-4.0 ngesikhathi ephothula ePennsylvania State University. Usize ekufundiseni izifundo zezibalo ePenn State kanti igama lakhe kuTwitter lithi MathMeetsFball. Wancintisana esigabeni sabangu - 1700 ePittsburgh Open Chess Grand Prix. Iphepha ayesebenza kulo lanyatheliswa kuyi - Journal of Computational Mathematics. 