paragraph_text: Von Neumann introduced the study of rings of operators, through the von Neumann algebras. A von Neumann algebra is a *-algebra of bounded operators on a Hilbert space that is closed in the weak operator topology and contains the identity operator. The von Neumann bicommutant theorem shows that the analytic definition is equivalent to a purely algebraic definition as an algebra of symmetries. The direct integral was introduced in 1949 by John von Neumann. One of von Neumann's analyses was to reduce the classification of von Neumann algebras on separable Hilbert spaces to the classification of factors.

paragraph_text: Dr. Helena von Lahnstein is a fictional character of the German soap opera "Verbotene Liebe (Forbidden Love)". The character has been played by Renée Weibel since October 5, 2009.

paragraph_text: Jana von Lahnstein ("née" Brandner) is a fictional character in the German soap opera "Verbotene Liebe" ("Forbidden Love"). The character was played by the actress Friederike Sipp from 1 October 2002 to 21 March 2005. The character was recast with Vanessa Jung, who played the role from 23 March 2005 to 20 February 2008.

paragraph_text: Tanja von Lahnstein (née Wittkamp, formerly von Anstetten, Rai and von Lahnstein) is a fictional character from the German soap opera "Verbotene Liebe (Forbidden Love)", played by actress Miriam Lahnstein. She made her first appearance on-screen on 21 June 1995 and left after three years in May 1998. Lahnstein returned to the role in 2001, where she was seen from 24 April to 5 October. She came back another three years later and reappeared on 16 April 2004. Lahnstein left the show for a short time, while being on contract, from June 2005 to March 2006 and from March to December 2007 during the pregnancy of her two children. She left again in December 2009 and returned in April 2010.

paragraph_text: Clarissa von Anstetten (née Prozeski and formerly Kaufmann) is a fictional character on German soap opera "Verbotene Liebe (Forbidden Love)". The character is played by actress Isa Jank from the show's debut on 2 January 1995 to 5 September 2001 and again since 21 June 2011. She left the show again on 20 March 2013.

paragraph_text: Tanja Andrejeva () (born 17 June 1978 in Skopje, Republic of Macedonia) is a Macedonian handball goalkeeper who plays for ŽRK Metalurg and for the Macedonia women's national handball team.

paragraph_text: Maria di Balbi is a fictional character on the German soap opera "Verbotene Liebe (Forbidden Love)" portrayed by actress Simone Ritscher since 21 January 2009. The character was also known by the alias Maria Galdi and the identity of her late sister Francesca von Lahnstein. She left the series on 7 January 2011. Two months later, on 17 March 2011, the character was killed off off-screen, to the anger of many fans.

paragraph_text: Sarah von Lahnstein (née Käppler, formerly Hofmann) is a fictional character on German soap opera "Verbotene Liebe (Forbidden Love)". The character was portrayed by actress Sina-Valeska Jung from 11 July 2006 to 5 May 2009.

paragraph_text: The Lahnstein family is a very wealthy and aristocratic prestigious fictional family on the German soap opera "Verbotene Liebe (Forbidden Love)". The Lahnsteins have been a staple on "Verbotene Liebe" since their introduction in September 2003.

paragraph_text: Sebastian von Lahnstein is a fictional character from the German soap opera "Verbotene Liebe (Forbidden Love)". The character was portrayed by actor Joscha Kiefer from November 26, 2007 to October 13, 2009. The part was recast with Sebastian Schlemmer who took over the role on October 19, 2009.

paragraph_text: Jelenin svet ("Jelena's World") is a 2008 independent documentary film written and directed by Tanja Brzaković, about former World No. 1 female tennis player, Jelena Janković.

paragraph_text: Tanja Roswitha Dickenscheid (born 17 June 1969 in Mainz, Rheinland-Pfalz) is a former field hockey player from Germany, who was a member of the national squad that won the silver medal at the 1992 Summer Olympics in Barcelona. She competed in three consecutive Summer Olympics for her native country, starting in 1992.

paragraph_text: The Farewell of Telemachus and Eucharis is an 1818 painting by Jacques-Louis David, now in the J. Paul Getty Museum. It was a commission by count Franz Erwein von Schonborn-Wiesentheid during David's exile in Brussels. It shows Telemachus and Eucharis, two characters in Fénelon's novel "Les Aventures de Télémaque", inspired by Homer's "Odyssey". It was the artist's last painting to show a couple from mythology, it was a pendant painting to his "Love and Psyche".

paragraph_text: The original line-up formed at the 1997 Cramps/Guitar Wolf show by Jason Stollsteimer and Marcie Bolen. They went through a variety of member changes and band names, including The Baby Killers, before settling on The Von Bondies in 2000. Don Blum joined the band around 1999 after attending numerous Baby Killers shows, while Leann Banks was picked via an audition. The Von Bondies got their break by playing a New Year's Eve show in Detroit, Michigan, in 2000. In attendance at the show was Long Gone John, owner of the Sympathy for the Record Industry label. This led to Sympathy releasing the band's debut album "Lack of Communication" in 2001.

paragraph_text: Verbotene Liebe (, lit. "Forbidden Love") is a German television soap opera created by Reg Watson for Das Erste. The show is set primarily in the German city of Düsseldorf although, at times, the city of Cologne and the Spanish island of Majorca have figured prominently in the show's story lines. First broadcast on 2 January 1995, "Verbotene Liebe" was originally broadcast in 24-minute episodes, five times a week. It expanded to 45-minute episodes on 21 June 2011 and trimmed back to 40-minute episodes on 23 January 2012 to accommodate an adjusted time-slot. In 2006, Pay-TV network Passion began broadcasting episodes of the show from the beginning.

paragraph_text: Nathalie Brandner (née Käppler, formerly von Lahnstein) is a fictional character from the German soap opera "Verbotene Liebe (Forbidden Love)". The character is portrayed by actress Jenny Winkler. She first appeared on 12 November 2004 and had her final appearance on 14 December 2010.

paragraph_text: Place Men Women Team 1st Mathew Fraser Katrín Tanja Davíðsdóttir CrossFit Mayhem Freedom 2nd Ben Smith Tia - Clair Toomey 12 Labours CrossFit 3rd Patrick Vellner Ragnheiður Sara Sigmundsdottir CrossFit Yas

paragraph_text: Constantin von Lahnstein is a fictional character on German soap opera "Verbotene Liebe (Forbidden Love)" and was portrayed by actor Milan Marcus. He made his first appearance on 9 December 2004. The character was introduced as the last original member of the Lahnstein family as a troublesome teenager that grow up at his aunt's in Italy after his mother died. He has been featured in numerous storylines, including finding his biological father, his friendship to Paul Brandner, his relationships to Paul's sister Lisa and Judith Hagendorf and an affair with the former wife of his cousin, Nathalie Käppler. Marcus decided to focus on college in 2008 but stayed with the show until his last appearance on 5 January 2011.

paragraph_text: Hagen von Lahnstein is a fictional character on the German soap opera "Verbotene Liebe". The character has been played by Christoph Mory, after being introduced by Tom Viehöfer.

paragraph_text: Tanja La Croix (born as Tanja Wettach on April 8, 1982) is a House DJ and Producer from Switzerland. 

Question: Who created the show with Tanja von Lahnstein?
Answer: Reg Watson