Alexander Weinstein
Alexander Weinstein( 21 January 1897 – 6 November 1979) was a mathematician who worked on boundary value problems in fluid dynamics.
A selection of Alexander Weinstein's scientific contributions was edited by J. B. Díaz and published as:
Lucy Troisi
Lucy Troisi is a Canadian politician, who was appointed to Toronto City Council.
She represented former Ward 28 in the City of Toronto, which had been vacant since the death of Pam McConnell in July 2017, during the period November 2017 to November 2018.
Troisi grew up in Regent Park and lives in Cabbagetown.
At the time of her appointment to council, Troisi was executive director of the Cabbagetown Youth Centre.
She previously served as a manager in the city's parks, forestry and recreation division from 1996 to 2005.
She won the appointment on the second ballot, in a council vote that split along ideological lines between conservative( primarily suburban) councillors who favoured Troisi, and progressive( primarily' downtown') councillors who favoured activist and McConnell staffer Michael Creek.
When appointed, Troisi said she would not run in the 2018 Toronto municipal election.
She later changed her mind and ran in Toronto Centre Ward 13 against Kristyn Wong- Tam, another incumbent as a result of the decision by the provincial government to reduce the number of wards.
Troisi placed third behind Wong- Tam and former MPP George Smitherman.
Carlos Díaz (actor)
Carlos Patricio Díaz( born July 21, 1970) is a Chilean- born Canadian film and television actor who appears in" Rent- a- Goalie The Dead Zone" and" The Line".
Díaz and the cast of" Rent- a- Goalie" were nominated for a Gemini Award in 2007, 2008 and 2009 in Seasons 1 through 3 for" Best Ensemble Performance in a Comedy Program or Series".
Antonio Díaz (boxer)
José Antonio Díaz( born June 13, 1976 in Jiquilpan, Michoacán, Mexico) is a Mexican professional boxer in the Light Middleweight division.
He's the former International Boxing Association Light Welterweight and WBO Latino Light Middleweight Champion.
Antonio is the brother of boxing trainer Joel Díaz and former IBF Lightweight Champion Julio Díaz.
Juan N. Méndez
Juan Nepomuceno Méndez (2 July 1820 – 29 November 1894) was a Mexican general, a Liberal politician and confidante of Porfirio Díaz, and interim president of the Republic for a few months during the Porfiriato.
He served from 6 December 1876 until 17 February 1877.
Manuela Escamilla
Manuela Escamilla( 1648–1721) was a Spanish playwright, stage actress and theatre manager.
She belonged to the playwrights of the Spanish Golden Age.
She was the daughter of Francisca Díaz and Antonio Escamilla, a successful actress in 1654 – 1677 and the manager of her father's theater company in 1683 – 1690.
Joel Díaz
Joel Díaz( born February 18, 1973 in Jiquilpan, Michoacán, Mexico) is a retired Mexican- American professional boxer, who fought in the Lightweight division.
He is currently considered one of the best trainers in boxing.
He is also the brother of Antonio Díaz and former- World Champion Julio Díaz.
David Ji
David Longfen Ji is an American businessman who co-founded Apex Digital, an electronics manufacturer.
In 2004, he was arrested in China following a dispute with Sichuan Changhong Electric, a supplier owned by the city of Mianyang and the province of Sichuan.
Changhong accused him of defrauding them through bad checks.
Ji was taken, according to an account by his lawyer, to the senior management and told, "I decide whether you live or die."
He has been held in China without charges.
Ji's case highlighted an "implicit racism" in dealings with American businessmen.
As a U.S. citizen he was not granted the same treatment by authorities as non-ethnically Chinese businessmen sharing the same nationality.
Julio Díaz (boxer)
Julio Díaz( born December 24, 1979) is a Mexican former professional boxer who is a Former IBF Lightweight World Champion the brother of boxing trainer Joel Díaz and former world champion Antonio Díaz.
Román Díaz
Román Díaz( born July 31, 1980 in Moreno, Argentina) is an Argentine footballer currently playing for Club Almirante Brown.

Question: Were Román Díaz and Lucy Troisi of the same nationality?
Answer: no