Anna Sergeyevna Kournikova is a Russian former professional tennis player and American television personality. Her appearance and celebrity status made her one of the best known tennis stars worldwide. At the peak of her fame, fans looking for images of Kournikova made her name one of the most common search strings on Google Search.
Martina Hingis is a Swiss former professional tennis player. Hingis was the first Swiss player, male or female, to have won a major title and attain the world No. 1 ranking. She spent a total of 209 weeks as the singles world No. 1 and 90 weeks as doubles world No. 1, holding both No. 1 rankings simultaneously for 29 weeks. She won five major singles titles, 13 major women's doubles titles, and seven major mixed doubles titles, for a combined total of 25 major titles. In addition, she won the season-ending WTA Finals two times in singles and three in doubles, an Olympic silver medal in doubles, and a record 17 Tier I singles titles.
Serena Jameka Williams is an American former professional tennis player. Widely regarded as one of the greatest tennis players of all time, she was ranked world No. 1 in singles by the Women's Tennis Association (WTA) for 319 weeks, including a joint-record 186 consecutive weeks, and finished as the year-end No. 1 five times. She won 23 Grand Slam women's singles titles, the most in the Open Era, and the second-most of all time. She is the only player to accomplish a career Golden Slam in both singles and doubles.
Venus Ebony Starr Williams is an American professional tennis player. A former world No. 1 in both singles and doubles, Williams has won seven Grand Slam singles titles, five at Wimbledon and two at the US Open. She is widely regarded as one of the greatest tennis players of all time.
Martina Navratilova is a Czech-American former professional tennis player. Widely considered among the greatest tennis players of all time, Navratilova won 18 major singles titles, 31 major women's doubles titles, and 10 major mixed doubles titles, for a combined total of 59 major titles, the most in the Open Era. Alongside Chris Evert, her greatest rival, Navratilova dominated women's tennis for much of the 1970s and 1980s.
Christine Marie Evert, known as Chris Evert Lloyd from 1979 to 1987, is an American former world No. 1 tennis player. Evert won 18 major singles titles, including a record seven French Open titles and a joint-record six US Open titles. Evert was ranked world No. 1 for 260 weeks, and was the year-end world No. 1 singles player seven times. Alongside Martina Navratilova, her greatest rival, Evert dominated women's tennis for much of the 1970s and 1980s.
Justine Henin is a Belgian former world No. 1 tennis player. She spent a total of 117 weeks as the world No. 1 and was the year-end No. 1 in 2003, 2006 and 2007. Henin, coming from a country with limited success in tennis, helped establish Belgium as a leading force in women's tennis alongside Kim Clijsters, and led the country to its first Fed Cup crown in 2001. She was known for her all-court style of play and for being one of the few female players to use a single-handed backhand.
Monica Seles is a former world No. 1 tennis player who represented Yugoslavia and the United States. She won nine major singles titles, eight of them as a teenager while representing Yugoslavia, and the final one while representing the United States. In 1990, Seles became the youngest-ever French Open champion at the age of 16. She went on to win eight major singles titles before her 20th birthday and was the year-end No. 1 in 1991 and 1992. However, on April 30, 1993, while playing a match, she was the victim of an on-court attack when an obsessed fan of Seles' rival Steffi Graf stabbed Seles in the back with a 9-inch (23 cm) knife as she was sitting down between games. Seles did not return to tennis for over two years after the stabbing. Though she enjoyed some success after returning in 1995, including victory at the 1996 Australian Open, she was unable to consistently produce her best tennis. She played her last professional match at the 2003 French Open but did not officially retire until February 2008. Regarded by many as one of the greatest tennis players of all time, Seles was named one of the "30 Legends of Women's Tennis: Past, Present and Future" by Time. Several players and historians have stated that Seles had the potential to become the most accomplished female player of all time had she not been stabbed. She was inducted into the International Tennis Hall of Fame in 2009.
Maria Yuryevna Sharapova is a Russian former tennis player. She competed on the WTA Tour from 2001 to 2020 and was ranked world number 1 in singles by the Women's Tennis Association (WTA) for 21 weeks. She is one of ten women, and the only Russian, to achieve the career Grand Slam. She is also an Olympic medalist, having won silver in women's singles at the 2012 London Olympics. She has been considered as one of the best tennis competitors of her generation.
Dorian Morris Goldfeld is an American mathematician working in analytic number theory and automorphic forms at Columbia University.
Ester Balassini is an Italian hammer thrower. Her personal best throw is 73.59 metres, achieved in June 2005 in Brixen.
The Journal of Number Theory (JNT) is a monthly peer-reviewed scientific journal covering all aspects of number theory. The journal was established in 1969 by R.P. Bambah, P. Roquette, A. Ross, A. Woods, and H. Zassenhaus. It is currently published monthly by Elsevier and the editor-in-chief is Dorian Goldfeld. According to the Journal Citation Reports, the journal has a 2022 impact factor of 0.7.
Laura Robson is a British former professional tennis player. She debuted on the ITF Junior Circuit in 2007, and a year later won the Junior Wimbledon championships at the age of 14. As a junior, she also twice reached the final of the girls' singles tournament at the Australian Open, in 2009 and 2010. She won her first tournament on the ITF Women's Circuit in November 2008.
In statistics, the Goldfeld–Quandt test checks for homoscedasticity in regression analyses. It does this by dividing a dataset into two parts or groups, and hence the test is sometimes called a two-group test. The Goldfeld–Quandt test is one of two tests proposed in a 1965 paper by Stephen Goldfeld and Richard Quandt. Both a parametric and nonparametric test are described in the paper, but the term "Goldfeld–Quandt test" is usually associated only with the former.
Esther Renay Dean, known professionally as Ester Dean, is an American R&B singer and songwriter. She has written songs for many artists, with numerous Top 10 hits, including No. 1 hits for Rihanna and Katy Perry, earning the name "The Song Factory". At the 54th Annual Grammy Awards, Dean was nominated for Album of the Year as a producer on Rihanna's album Loud. Outside of music, she voiced two of the characters in the fourth film in the Ice Age franchise, Ice Age: Continental Drift, and also wrote a song for the movie, titled "We Are (Family)". Dean made her acting debut in the film Pitch Perfect (2012) as Cynthia-Rose Adams, a role she reprised for the sequels, Pitch Perfect 2 (2015) and Pitch Perfect 3 (2017).
"Drop It Low" is the debut single by American singer and songwriter Ester Dean. The official version features vocals from R&B singer Chris Brown. This was also released as the second single from the soundtrack for the film More than a Game (2009). The original version of the song did not feature Chris Brown, and maintained the same lyrics on the second verse but coming from a man's perspective. The official remix features Lil Wayne, Trey Songz and Diddy.
Goldfeld is a Jewish East European surname, common among Ashkenazi Jews. Its meaning is 'gold field'.
The 2011 EmblemHealth Bronx Open was a professional tennis tournament played on hard courts. It was the 12th edition of the tournament which is part of the 2011 ITF Women's Circuit. It took place in The Bronx, United States between 8 and 14 August 2011.
Algebraic Eraser (AE) is an anonymous key agreement protocol that allows two parties, each having an AE public–private key pair, to establish a shared secret over an insecure channel. This shared secret may be directly used as a key, or to derive another key that can then be used to encrypt subsequent communications using a symmetric key cipher. Algebraic Eraser was developed by Iris Anshel, Michael Anshel, Dorian Goldfeld and Stephane Lemieux. SecureRF owns patents covering the protocol and unsuccessfully attempted to standardize the protocol as part of ISO/IEC 29167-20, a standard for securing radio-frequency identification devices and wireless sensor networks.
Ester Alexandra Crețu, known professionally as Ester Peony, is a Romanian singer and songwriter. She represented Romania in the Eurovision Song Contest 2019 with the song "On a Sunday" after winning the selection show Selecția Națională 2019. However, she failed to qualify for the Grand Final in Tel Aviv. Peony started to compose music for Romanian artists before gaining recognition for posting covers on YouTube in 2015. Later that year, she attained commercial success in Romania with her single "Sub aripa ta" featuring Vescan.
