Craige Schensted (), who formally changed his name to Ea Ea, was an American physicist and mathematician who first formulated the insertion algorithm that defines the

Robinson–Schensted correspondence In mathematics, the Robinson–Schensted correspondence is a bijective correspondence between permutations and pairs of standard Young tableaux of the same shape. It has various descriptions, all of which are of algorithmic nature, it has many rema ...

. Under a different form, that correspondence had earlier been described by

Gilbert de Beauregard Robinson Gilbert de Beauregard Robinson, MBE (3 June 1906 – 8 April 1992) was a Canadian mathematician most famous for his work on combinatorics and representation theory of the symmetric groups, including the Robinson-Schensted algorithm. Biograph ...

in 1938, but it is due to the Schensted insertion algorithm that the correspondence has become widely known in

combinatorics Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures. It is closely related to many other areas of mathematics and has many a ...

. Schensted also designed several board games including *Star,

Star A star is an astronomical object comprising a luminous spheroid of plasma held together by its gravity. The nearest star to Earth is the Sun. Many other stars are visible to the naked eye at night, but their immense distances from Earth make ...

, and Y. In 1995, he changed his name to Ea, the Babylonian name for the Sumerian god

Enki , image = Enki(Ea).jpg , caption = Detail of Enki from the Adda Seal, an ancient Akkadian cylinder seal dating to circa 2300 BC , deity_of = God of creation, intelligence, crafts, water, seawater, lakewater, fertility, semen, magic, mischief ...

, and in 1999 changed it to Ea Ea. He lived on

Peaks Island Peaks Island is the most populous island in Casco Bay, Maine. It is part of the city of Portland and is approximately from downtown. The island is served by Casco Bay Lines and is home to its own elementary school, library, and police station. ...

Portland, Maine Portland is the largest city in the U.S. state of Maine and the seat of Cumberland County. Portland's population was 68,408 in April 2020. The Greater Portland metropolitan area is home to over half a million people, the 104th-largest metro ...

References

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External links

Home page
of Ea Ea, formerly Craige Schensted

of Ea Ea

of Ea Ea Board game designers Year of birth missing (living people) 20th-century American mathematicians 21st-century American mathematicians People from Portland, Maine Living people {{Mathematician-stub