The Cholesky decomposition of a Hermitian positive-definite matrix A is a decomposition of the form. where L is a lower triangular matrix with real and positive diagonal entries, and L * denotes the conjugate transpose of L.hen A has real entries, L has real entries as well and the factorization may be written A = LLT. The Cholesky decomposition is unique when A is positive definite; there is only one lower triangular matrix L with strictly positive diagonal entries such that A = LL *.
A chagoma is an inflammatory nodule at the bite site of the reduviid bug which transmits Chagas disease, not to be confused with Romana's sign which is periorbital soft tissue and lymphoid swelling which occurs when the T. cruzi protozoan that causes Chagas disease enters through the conjunctiva.
Chav is a pejorative epithet used in Britain to describe a particular stereotype of anti-social youth dressed in sportswear. The word was popularised in the first decade of the 21st century by the British mass media to refer to an anti-social youth subculture in the United Kingdom. The Oxford English Dictionary defines chav as an informal British derogatory, meaning a young lower-class person who displays brash and loutish behaviour and wears real or imitation designer clothes. The derivative