#### Filter Results:

#### Publication Year

1995

2017

#### Publication Type

#### Co-author

#### Publication Venue

#### Key Phrases

Learn More

- D. L. Flannery
- 1995

It is conjectured that binary cocyclic matrices are a uniform source of Hadamard matrices. In testing this conjecture, it is useful to have a general method of calculating cocyclic matrices. We present such a method in this paper. The method draws on standard cohomology theory of finite groups. In particular we employ the Universal Coefficient Theorem,… (More)

- A. S. Detinko, D. L. Flannery
- J. Symb. Comput.
- 2008

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: Abstract We develop methods for computing with matrix groups defined over a range of… (More)

- A. S. Detinko, D. L. Flannery, E. A. O'Brien
- J. Symb. Comput.
- 2013

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a r t i c l e i n f o a b s t r a c t We present a uniform methodology for computing… (More)

We survey currently available algorithms for computing with matrix groups over infinite domains. We discuss open problems in the area, and avenues for further development.

- A. S. DETINKO, Martin L. Newell, D. L. Flannery
- 2006

This article examines aspects of the theory of locally nilpotent linear groups. We also present a new classification result for locally nilpotent linear groups over an arbitrary field F. Linear (matrix) groups are a commonly used concrete representation of groups. The first investigations of linear groups were undertaken in the second half of the 19th… (More)

- A. S. Detinko, D. L. Flannery
- J. Symb. Comput.
- 2009

In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t We provide a new, practical algorithm for deciding finiteness of… (More)

- A. S. Detinko, D. L. Flannery, W. A. de Graaf
- J. Symb. Comput.
- 2015

a r t i c l e i n f o a b s t r a c t We develop a practical algorithm to decide whether a finitely generated subgroup of a solvable algebraic group G is arithmetic. This incorporates a procedure to compute a generating set of an arithmetic subgroup of G. We also provide a simple new algorithm for integrality testing of finitely generated solvable-by-finite… (More)

- D. L. Flannery, R. Egan
- 2014

a r t i c l e i n f o a b s t r a c t We introduce and develop the concept of (linear) shift representation. This derives from a certain action on 2-cocycle groups that preserves both cohomological equivalence and orthogonality for cocyclic designs, discovered by K.J. Horadam. Detailed information about fixed point spaces and reducibility is given. We also… (More)

- R. Egan, D. L. Flannery
- Discrete Mathematics
- 2017

- DARRAGH FLANNERY, CATHAL O’DONOGHUE
- 2009

In this paper we present a theoretical model of higher education participation in Ireland. Utilising the Living in Ireland Survey data we model the impact of costs (direct and indirect), the estimated life cycle returns, environmental and parental influences and also household credit constraints on the higher education participation decision. We find that… (More)

- ‹
- 1
- ›