Question: Between what years did the author of Solip:System write under the name Jon Williams?

Context paragraphs:
This Side Up (Jon album): This Side Up is the first studio album by Danish singer Jon Nørgaard under the name Jon.  The album was released in 2002 and reissued in an international edition in 2003.  It entered the Norwegian Albums Chart at number 1.  The album sold 135,000 copies and resulted in two successful singles "Right Here Next to You" and "This Side Up".

Jon Cutler (wrestler): Jon Skrypnyk (born July 17, 1981) is a Canadian professional wrestler, best known by his ring name Jon Cutler.  He had been signed to a developmental contract with World Wrestling Entertainment and worked in their developmental territory, Florida Championship Wrestling in 2008 and 2009.

Knight Moves (novel): Knight Moves is science fiction space opera novel by American author Walter Jon Williams, published in 1985.

Walter Jon Williams: Walter Jon Williams (born 1953) is an American writer, primarily of science fiction.  Previously he wrote nautical adventure fiction under the name Jon Williams, a series of historical novels set during the age of sail, Privateers and Gentlemen (1981–1984).

Ben Williams (referee): Benjamin Jon Williams (born 14 April 1977), better known as Ben Williams, is an Australian soccer referee.  He was also a physical education teacher at Belconnen High School in Hawker, Canberra, now he teaches at Lyneham High School.

Implied Spaces: Implied Spaces is a 2008 space opera novel by American author Walter Jon Williams.  It explores themes of transhumanism, artificial intelligence and ontology.

Jon Connor: Jon Kevin Freeman, Jr. (born April 13, 1985), better known by his stage name Jon Connor, is an American rapper and producer.  Connor has released various mixtapes and an album effort during his career including the Jay-Z inspired "The Blue Album", and the Eminem inspired "The People's Rapper LP".  He has released one studio album, "Unconscious State", and is currently signed to Dr. Dre's Aftermath Entertainment.  In 2015 he was featured on Dr. Dre's album Compton as well as The Game's album The Documentary 2.

Solip:System: Solip:System is a 1989 cyberpunk science fiction novelette by Walter Jon Williams.

Dread Empire's Fall: Dread Empire's Fall is a space opera novel series, written since 2002 by the American author Walter Jon Williams.

Epsilon Eridani in fiction: The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction.  Epsilon Eridani is the fifth-brightest star (by apparent magnitude) in the riverine southern constellation of Eridanus.  An orange star slightly smaller and less massive than the Sun, and relatively close to the Solar System, it is frequently featured in works of science fiction.  It is classified as a type K2 star, with the corresponding suggestion that it has a stable habitable zone and is well suited for life.  However, one factor which weakens the case for habitability is its youth—as little as 200 million years old—and consequent high levels of ultraviolet emission (see "Implied Spaces" by Walter Jon Williams, below).

Supporting paragraphs: Solip:System Walter Jon Williams
Answer: 1981–1984