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Sylvester domain information


In mathematics, a Sylvester domain, named after James Joseph Sylvester by Dicks & Sontag (1978), is a ring in which Sylvester's law of nullity holds. This means that if A is an m by n matrix, and B is an n by s matrix over R, then

ρ(AB) ≥ ρ(A) + ρ(B) – n

where ρ is the inner rank of a matrix. The inner rank of an m by n matrix is the smallest integer r such that the matrix is a product of an m by r matrix and an r by n matrix.

Sylvester (1884) showed that fields satisfy Sylvester's law of nullity and are, therefore, Sylvester domains.

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Sylvester domain

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In mathematics, a Sylvester domain, named after James Joseph Sylvester by Dicks & Sontag (1978), is a ring in which Sylvester's law of nullity holds....

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List of things named after James Joseph Sylvester

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positive-definite Hermitian matrices. Sylvester domain. The Sylvester matrix for two polynomials. Sylvester's sequence, where each term is the product...

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James Joseph Sylvester

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divisor (in case of coefficients in an integral domain). Sylvester matrices are named after James Joseph Sylvester. Formally, let p and q be two nonzero polynomials...

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constructed by taking grading into account. Sylvester domain A Sylvester domain is a ring in which Sylvester's law of nullity holds. tensor The tensor product...

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Henry Sylvester Cornwell

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incorporates public domain material from the 1886 Yale Obituary Record. Works by or about Henry Sylvester Cornwell at Internet Archive Henry Sylvester Cornwell at...

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2024 in American public domain

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public domain in 2024. Sound recordings that were published in 1923 enter the public domain. The most famous work to enter the public domain in the United...

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Josuah Sylvester

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Free ideal ring

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§5.4). Semifirs have invariant basis number and every semifir is a Sylvester domain. Cohn, P. M. (1971), "Free ideal rings and free products of rings"...

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Order of the Golden Spur

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Looney Tunes

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Principality of Catalonia

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Paul Cohn

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its Applications vol 57 Cohn, P. M. (2000). "From Hermite rings to Sylvester domains". Proc. Amer. Math. Soc. 128 (7): 1899–1904. doi:10.1090/s0002-9939-99-05189-8...

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Silvester Jenks

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this source, which is in the public domain.  This article incorporates text from a publication now in the public domain: Edwin Burton (1913). "Silvester...

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