Alexandros Margaritis
Alexandros( Alex, Alexander) Margaritis;( born 20 September 1984) is a racing driver who is best known for competing in the German- based Deutsche Tourenwagen Masters touring car championship.
Prior to that, his career had focused on formula single seater racing in Europe.
Margaritis has dual nationality as a result of his place of birth and Greek parentage.
Alice Silverberg
Alice Silverberg( born 1958) is professor of Mathematics and Computer Science at the University of California, Irvine.
Her research concerns number theory and cryptography.
With Karl Rubin, she introduced the CEILIDH system for torus- based cryptography in 2003.
Silverberg graduated from Harvard University in 1979, and received her Ph.D. from Princeton University in 1984 under the supervision of Goro Shimura.
She joined the Ohio State University faculty in the same year, and moved to Irvine in 2004.
In 2012, Silverberg became a fellow of the American Mathematical Society.
She is part of the 2019 class of fellows of the Association for Women in Mathematics.
In 2017, Silverberg began a blog entitled" Alice's Adventures in Numberland", which humorously discusses issues surrounding sexism in academia.
This is a topic which she has previously discussed in interviews, and has been quoted on.
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.
Juan Virgen
Juan Ramón Virgen Pulido( born 9 April 1987) is a Mexican male volleyball and beach volleyball player.
With his club Tigres UANL he competed at the 2012 FIVB Volleyball Men's Club World Championship.
As a beach volleyball player he competed at the 2013 Beach Volleyball World Championships and 2011 Pan American Games and 2015 Pan American Games.
He qualified to compete at the 2016 Summer Olympics in Rio de Janeiro, in the men's tournament with Lombardo Ontiveros, but they lost in the Round of 16 against Reinder Nummerdor and Christiaan Varenhorst, from the Netherlands.
CEILIDH
CEILIDH is a public key cryptosystem based on the discrete logarithm problem in algebraic torus.
This idea was first introduced by Alice Silverberg and Karl Rubin in 2003; Silverberg named CEILIDH after her cat.
The main advantage of the system is the reduced size of the keys for the same security over basic schemes.
History of Japanese nationality
The history of Japanese nationality as a chronology of evolving concepts and practices begins in the mid-nineteenth century, as Japan opened diplomatic relations with the west and a modern nation state was established through the Meiji Restoration.
Mary Proctor
Mary Proctor (1862 – September 11, 1957) was an American popularizer of astronomy.
While not a professional astronomer, Proctor became well known for her books and articles written for the public – particularly her children's fiction.
Despite various claims as being an American, there is a passenger list of about 1924 where she gives nationality as British.
Fourth umpire
The fourth umpire( sometimes referred to as the reserve umpire), is a cricket umpire.
For all international matches a fourth umpire is required to perform duties like bringing on the new ball, carrying drinks on to the field for the umpires, checking the batteries in the light meter, observing the pitch during the lunch and tea intervals to make sure there is no interference, or bringing on new bails.
The Fourth umpire will take over the Third umpire duties if something happens to one of the on- field umpires, as the rules state the third umpire will take over on- field duties.
For Test matches, the fourth umpire is appointed by the home side's Governing body from their nominees to the International Panel of ICC Umpires, so is the same nationality as the home side.
Lombardo Ontiveros
Rodolfo Lombardo Ontiveros Gómez( born 9 November 1983) is a Mexican male volleyball and beach volleyball player.
Karl Rubin
Karl Cooper Rubin( born January 27, 1956) is an American mathematician at University of California, Irvine as Thorp Professor of Mathematics.
Between 1997 and 2006, he was a professor at Stanford, and before that worked at Ohio State University between 1987 and 1999.
His research interest is in elliptic curves.
He was the first mathematician( 1986) to show that some elliptic curves over the rationals have finite Tate- Shafarevich groups.
It is widely believed that these groups are always finite.

Question: Does Karl Rubin have the same nationality as Lombardo Ontiveros?
Answer: no