António Alva Rosa Coutinho
António Alva Rosa Coutinho( 14 February 1926 – 2 June 2010) was a Portuguese admiral, political activist, and participant in the Carnation Revolution.
First aerial crossing of the South Atlantic
The first aerial crossing of the South Atlantic was made by the Portuguese naval aviators Gago Coutinho and Sacadura Cabral in 1922, to mark the centennial of Brazil's independence.
Coutinho and Cabral flew in stages from Lisbon, Portugal, to Rio de Janeiro, Brazil, using three different Fairey III biplanes, and covered a distance of between March 30 and June 17.
Although the North Atlantic had already been traversed in a non-stop flight by John Alcock and Arthur Brown in 1919, Coutinho and Cabral's flight remains notable as a milestone in transatlantic aviation, and for its use of new technologies such as the artificial horizon.
Siegfried Köhler (conductor)
Siegfried Köhler( 30 July 1923 – 12 September 2017) was a German conductor and composer of classical music.
He worked as general music director of opera houses such as Hessisches Staatstheater Wiesbaden and the Royal Swedish Opera.
Köhler conducted premieres of works by Hans Werner Henze and Volker David Kirchner, among others, and revived rarely performed operas.
He also composed music for the stage and taught at universities of music in Cologne and Saarbrücken.
Solovay–Strassen primality test
The Solovay – Strassen primality test, developed by Robert M. Solovay and Volker Strassen, is a probabilistic test to determine if a number is composite or probably prime.
It has been largely superseded by the Baillie- PSW primality test and the Miller – Rabin primality test, but has great historical importance in showing the practical feasibility of the RSA cryptosystem.
The Solovay – Strassen test is essentially an Euler – Jacobi pseudoprime test.
Carlos Viegas Gago Coutinho
Carlos Viegas Gago Coutinho, GCTE, GCC, generally known simply as Gago Coutinho( 17 February 1869 – 18 February 1959) was a Portuguese geographer, cartographer, naval officer, historian and aviator.
An aviation pioneer, Gago Coutinho and Sacadura Cabral were the first to cross the South Atlantic Ocean by air, from March to June 1922, from Lisbon, Portugal, to Rio de Janeiro, Brazil.
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.
The ABC of Love
The ABC of Love is a 1967 Brazilian and Argentine drama film directed by Eduardo Coutinho and Rodolfo Kuhn.
The picture stars Jorge Rivera López and Bárbara Mujica.
Volker Strassen
Volker Strassen( born April 29, 1936) is a German mathematician, a professor emeritus in the department of mathematics and statistics at the University of Konstanz.
For important contributions to the analysis of algorithms he has received many awards, including the Cantor medal, the Konrad Zuse Medal, the Paris Kanellakis Award for work on randomized primality testing, the Knuth Prize for" seminal and influential contributions to the design and analysis of efficient algorithms."
Klaus Thiele
Klaus Thiele( born 21 January 1958 in Potsdam) was an East German athlete who competed mainly in the 400 metres.
He competed for East Germany in the 1980 Summer Olympics held in Moscow, Soviet Union in the 4 × 400 metres relay where he won the silver medal with his teammates Andreas Knebel, Frank Schaffer and Volker Beck.
Andreas Knebel
Andreas Knebel( born 21 June 1960 in Sangerhausen) is a former East German athlete who competed mainly in the 400 metres.
He competed for East Germany in the 1980 Summer Olympics held in Moscow, Soviet Union in the 4 × 400 metres relay where he won the silver medal with his teammates Klaus Thiele, Frank Schaffer and Volker Beck.

Question: Do António Alva Rosa Coutinho and Volker Strassen share the same nationality?
Answer: no