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|Title:||On cosine families close to scalar cosine families|
|Citation:||Journal of the Australian Mathematical Society, 2015; 99(2):166-174|
|Publisher:||Cambridge University Press|
|Abstract:||We prove that if two normed-algebra-valued cosine families indexed by a single Abelian group, of which one is bounded and comprised solely of scalar elements of the underlying algebra, differ in norm by less than 1 uniformly in the parametrising index, then these families coincide.|
|Keywords:||cosine family; cosine sequence; normed algebra; scalar element|
|Description:||Published online: 26 February 2015|
|Rights:||© 2015 Australian Mathematical Publishing Association Inc.|
|Appears in Collections:||Computer Science publications|
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