Future extensions of audit services, Meeting investors\u27 future needs

https://egrove.olemiss.edu/dl_proceedings/1022/thumbnail.jp

How it feels to be a gored ox: Eight years with the Accounting Principles Board

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Interactions of Cosmic Superstrings

We develop methods by which cosmic superstring interactions can be studied in detail. These include the reconnection probability and emission of radiation such as gravitons or small string loops. Loop corrections to these are discussed, as well as relationships to $(p,q)$-strings. These tools should allow a phenomenological study of string models in anticipation of upcoming experiments sensitive to cosmic string radiation.Comment: 22 pages, 6 figures; v2: updated reference

Integer generalized inverses of incidence matrices

AbstractGraphical procedures are used to characterize the integral {1}- and {1, 2}-inverses of the incidence matrix A of a digraph, and to obtain a basis for the space of matrices X such that AXA = 0. These graphical procedures also produce the Smith canonical form of A and a full rank factorization of A using matrices with entries from {-1, 0, 1}. It is also shown how the results on incidence matrices of oriented graphs can be used to find generalized inverses of matrices of unoriented bipartite graphs

Conpseudosimilarity and consemisimilarity over a division ring

AbstractIt is shown that for n × n matrices over a division ring which is finite dimensional over its center, the notions of consimilarity, conpseudosimilarity and consemisimilarity are all equivalent, provided the conjugation is strong

Pseudo-consimilarity and semi-consimilarity of complex matrices

AbstractIt is shown that the notion of consimilarity of n-by-n complex matrices is equivalent to each of the new concepts of pseudo-consimilarity and semi-consimilarity. This equivalence is unlike similarity in that pseudo-similarity and similarity are equivalent, while semi-similarity is a weaker relation than (pseudo-) similarity