King's College, Aberdeen

About: King's College, Aberdeen is a based out in . It is known for research contribution in the topics: Poison control & Sedimentary depositional environment. The organization has 712 authors who have published 918 publications receiving 25421 citations. The organization is also known as: King's College, Aberdeen & The University and King's College of Aberdeen.

Contact Problems for Interface Cracks under Harmonic Loading

Abstract: The linear crack located at the bimaterial interface between dissimilar homogeneous linearly elastic materials under normally incident harmonic tension-compression wave is considered in the study. The problem is solved by the method of boundary integral equations using an iterative algorithm. The dynamic stress intensity factors are computed as functions of the loading frequency taking the contact interaction of the opposite crack's faces into account. (© 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)

Operator norms determined by their numerical ranges

Abstract: This paper owes its origin to the following question posed by A. M. Sinclair, “If a linear algebra with identity has two equivalent unital algebra norms, |.| 1 and |.| 2 , whose corresponding numerical radii, v 1 and v 2 , are equal on the whole algebra, are |.| 1 and |.| 2 related? Are they, for example, necessarily equal?” We do not give a complete answer to this question but are able to give sufficient conditions on algebras of operators for v 1 = v 2 to imply |.| 1 = |.| 2 That this implication does not hold for an arbitrary algebra with identity is demonstrated by means of a counter-example. The result for operator algebras is used to deduce some essentially non numerical range results for equivalent operator norms.

The Authority of the Voice: A Theological Reading of 1 Cor 11.2–16

Abstract: The polarity between ‘hierarchical’ and ‘egalitarian’ perspectives on the relationship of male and female is not the best way to approach this passage (1 Cor 11.2–16), which interprets this relationship as one of interdependence. This interdependence is expressed in the shared practices of prophecy and prayer, in which the dialogue between God and the congregation is articulated. In Paul's proposed modification to these practices, female head-covering – probably a veil – serves as a symbol of women's freedom from an erotic basis for the relationship of male and female derived from creation.