Anthony G. O'Farrell : Publications</b>

Anthony G. O'Farrell: Publications

Books:
1. A. O Fearghail. Notai an Bhrathar Mac Craith. Institiud Oideachais Marino. 2003. iv+170pp. ISBN 1-8991-6223-2
2. G. McGuire, A.G. O'Farrell, D. Redmond, R.O. Watson and D. Wraith. Maynooth Mathematical Olympiad Manual. Kilcock. Logic Press. 2002. viii+143pp. ISBN 0-9544269-0-8.
3. A.G. O'Farrell. Introduction to Maple Programming. Kilcock. Logic Press. 2005. viii+235pp. ISBN 0-9544269-4-0.
4. J. Cruickshank, G. McGuire, A.G. O'Farrell, D. Redmond, R.O. Watson and D. Wraith. Irish Mathematical Olympiad Manual. Kilcock. Logic Press. 2008. viii+165pp. ISBN 0-9544269-7-5.

Research Papers in Mathematics:
1. Thesis: Capacities in Uniform Approximation, Brown University, 1973.
2. An isolated bounded point derivation, Proceedings AMS 39 (1973) 559-562.
3. Removable sets for classes of functions, Proceedings AMS 41 (1973) 282-286.
4. Equiconvergence of derivations, Pacific J. Math. 53 (1974) 539-554.
5. Density of parts of algebras on the plane , Transactions AMS 196 (1974) 403-414.
6. Analytic capacity, Holder conditions, and $\tau$-spikes, Transactions AMS 196 (1974) 415-424.
7. A generalized Walsh-Lebesgue theorem, Proc. Roy. Soc. Edinburgh 73A(1974/75) 231-234.
8. Lipschitz functions and bad metrics, Michigan Math. J. 21 (1974) 277-287.
9. Lip 1 rational approximation, Journal LMS (2) 11 (1975) 159-164.
10. Hausdorff content and rational approximation in fractional Lipschitz norms, Transactions AMS 228 (1977) 187-206.
11. Annihilators of rational modules, J. Functional Analysis 19 (1975) 373-389.
12. Localness of certain Banach modules, Indiana Univ. Math. J. 24 (1975) 1135-1141.
13. Metaharmonic approximation in Lipschitz norms, Proc. Roy. Irish Acad. 75A (1975) 317-330.
14. Continuity properties of Hausdorff content, Journal LMS (2) 13 (1976) 403-410.
15. (with J.B. Garnett) Sobolev approximation by a sum of subalgebras on the circle, Pacific J. Math. 65 (1976) 55-63.
16. (with D.E. Marshall) Uniform approximation by real functions, Fund. Math., 54 (1979) 203-211.
17. Functions with smooth extensions, Proceedings RIA 74A (1974) 317-320.
18. Rational approximation in Lipschitz norms I, Proceedings RIA 77A (1977) 113-115.
19. Rational approximation in Lipschitz norms II, Proceedings RIA 79A (1979) 103-114.
20. A Characterisation of harmonic functions, Proceedings RIA 78A (1978) 33-36.
21. Point derivations on an algebra of Lipschitz functions, Proceedings RIA 80A (1980) 23-39.
22. Analytic capacity and equicontinuity, Bulletin LMS, 10 (1978) 276-279.
23. A regular uniform algebrea with a continuous point derivation of infinite order, Bulletin LMS, 11 (1979) 41-44.
24. Estimates for capacities and approximation in Lipschitz norms, J.f.d. Reine u. Angew. Math. 311/312 (1979) 101-115.
25. Real parts of analytic functions, Proceedings RIA 79A (1979) 173-178.
26. (with K.J. Preskenis) Approximation by polynomials in two complex variables, Math. Ann. 246 (1980) 225-232.
27. Restriction algebras, Proceedings RIA 82A (1982) 105-108. MR 84b:46058 (The reviewer is wrong: cf. MR Annual Index 1984, Errata and Addenda, page (i).)
28. (with D. Marshall) Approximation by a sum of two algebras. The lightning bolt principle. Journal of Functional Analysis, 52 (1983) 353-368.
29. The Legendre expansion of a smooth function, in Mathematical Structures-Computational Mathematics-Mathematical Modelling, Sofia 1984, pp.165-169.
30. (with K.J. Preskenis and D. Walsh) Polynomial approximation on graphs, Math. Ann. 226 (1983) 73-81.
31. Polynomial approximation of smooth functions, Journal LMS, (2) 28 (1983) 496-506.
32. (with K.J. Preskenis and D. Walsh) Holomorphic approximation in Lipschitz norms, Contemporary Mathematics 32 (1984) 187-194.
33. (with K.J. Preskenis) Approximation by polynomials in two diffeomorphisms, Bulletin AMS, 10 (1984) 105-107.
34. Instability pairs, Proceedings RIA 86A (1986) 67-80. MR88a:28006
35. Rational approximation and weak analyticity I, Math. Ann. 273 (1986) 375-381. MR87d:30041
36. Rational approximation and weak analyticity II, Math. Ann. 281 (1988) 169-176. MR 89k: 30036
37. A simplified proof of Vitushkin's squares theorem, Proceedings RIA 87A (1987) 91-94. MR 89e: 30067.
38. (with G.R. Allen and T.J. Ransford) A Tauberian theorem arising in operator theory, Bulletin L.M.S. 19 (1987) 537-545. MR 89c: 47003
39. $C^\infty$ maps may increase $C^\infty$ dimension, Inventiones Math. 89 (1987) 663-668. MR 89d: 58022
40. The order of a symmetric concrete space, Proceedings RIA 88A (1988) 39-48. MR 90b: 46081.
41. (with K.J. Preskenis) Uniform approximation by polynomials in two functions, Math. Ann. 284 (1989) 529-35. Announced in AMS Abstracts 9 (1988) 86 (no. 839-46-90). MR 90k: 30077.
42. The 1-reduction for removable singularities, and the negative H\"older spaces, Proceedings RIA. 88A (1988) 133-151. MR 90g: 35003.
43. (with D. O'Regan) Existence results for some initial and boundary value problems, Proceedings AMS, 110 (1990) 661-73.
44. (with R.O. Watson) The tangent stars of a set, and extensions of smooth functions, J. f\"ur die Reine und Angew. Math., 430 (1992) 109-137. Announced in: Bulletin IMS 26 (1991) 10-1. MR 93h:58015.
45. (with F. Perez-Gonzalez) Pointwise bounded approximation by polynomials, Math. Proc. Camb. Phil. Soc. 112 (1992) 147-155. MR 93d:30048.
46. (with D. Lord) Removable singularities for analytic functions of Zygmund class, Proceedings R.I.A., 91A (1991) 195-204. MR 93h:30036.
47. T-invariance, Proceedings R.I.A. 92A (1992) 185-203.
48. (with P. de Paepe) Approximation on a disk II, Math. Zeit. 212 (1993) 153-6.
49. (with D.J. Lord) Boundary smoothness properties of Lip$\alpha$ analytic functions , J. Analyse Math. (Jerusalem), 63 (1994) 103-19.
50. (with S. Dineen, J. Feinstein, and R.M. Timoney) A fixed point theorem for holomorphic maps, Proceedings R.I.A., 94A (1994) 77-84.
51. (with R.O. Watson) Constructing C$^1$ extensions, Proceedings RIA 93A (1993) 61-72.
52. (with J. Feinstein and H. Lande) Approximation and extension in normed spaces of infinitely-differentiable functions, J.L.M.S. (2) 54 (1996) 541-56.
53. (with T. Dowling) Affine transformations and analytic capacities, Transactions A.M.S., 347 (1995) 2643-55.
54. (with F. O'Cairbre and A. O'Reilly) Bistability, bifurcation and chaos in a laser system, Int. J. Bifurcation and Chaos, 5 (1995) 1021-31.
55. (with T. Dowling) Sobolev space analytic capacities , Proceedings R.I.A., 97A (1997) 87-99.
56. An example on Sobolev space approximation, Bulletin L.M.S., 29 (1997) 470-4.
57. (with G. Allan, G. Kakiko and R. Watson) Finitely-generated algebras of smooth functions in one dimension , J. Functional Analysis, 158 (1998) 458-74.
58. (with G. Allan, G. Kakiko and R. Watson) Algebras of smooth functions , in E. Albrecht and M. Mathieu (eds), Banach Algebras '97. W. de Gruyter. Berlin. 1998. pp. 43-53.
59. (with G. Allan, G. Kakiko and R. Watson) Localness of A(\Psi) algebras , Math. Proc. Roy. Ir. Acad., 101A (1) (2001) 61-70.
60. (with I. Netuka and A. Sanabria) Pervasive algebras of analytic functions. J. Approx. Theory, 106 (2000) 262--75.
61. (with A. Sanabria) Pervasive algebras of analytic functions on Riemann surfaces. Math. Proc. Roy. Ir. Acad., 101A (1) (2001) 87-94.
62. (with D. Graham and S. Keane) Sim\'eadracht amch\'ulaithe ch\'orais dinimici\'uil, (Time--reversal symmetries of dynamical systems) Proc. Irish Systems and Signals Conference, Maynooth, 2001, pp. 27-31. (An English--language version is available.)
63. (with A. Sanabria) De Paepe's disc has nontrivial polynomial hull , Bull. LMS, 34 (2002) 490-4.
64. Compositions of involutive power series and reversible series. Comput. Methods Funct. Theory 8 (2008) 173-93.
65. When uniformly-continuous implies bounded. Bulletin Ir. Math. Soc. 53 (2004) 53-6.
66. Conjugacy, involutions, and reversibility for real homeomorphisms, Bulletin Ir. Math. Soc. 54 (2004) 41-52. Corrigendum: 55 (2005) 61. Corrigendum secundum: 56 (2005) 15.
67. (with M. Roginskaya) Conjugacy of real diffeomorphisms. A Survey. , Algebra i Analiz, 22 (2010) 3-56. arXiv:0911.0804
68. (with R. Lavicka and Ian Short) Reversible maps in the group of quaternionic M\"obius transformations . Math. Proc. Camb. Phil. Soc., 143 (2007) 57-69.
69. (with Ian Short) Reversibility in the diffeomorphism group of the real line. Publicacions Matematiques, 53 (2009) 401-15. arXiv:0811.3597
70. (with Nick Gill and Ian Short) Reversibility in the group of homeomorphisms of the circle. Bulletin LMS 41 (2009) 885-97; doi: 10.1112/blms/bdp065 permanent free online access at blms.oxfordjournals.org and arXiv:0710.3997
71. (with M. Roginskaya) Reducing conjugacy in the full diffeomorphism group of R to conjugacy in the subgroup of orientation-preserving maps. Zapiski Nauchnykh Seminar POMI RAN (Russian)/ J. Math. Sci. (English), 360 (2008) 231-7. arXiv:0811.3370
72. (with P. Ahern) Reversible biholomorphic germs. Comput. Methods Funct. Theory 9 (2009), No. 2, 473--84. arXiv:0811.1575
73. (with Jesus San Martin) A controllability criterion for switched linear systems. Preprint 2009. arXiv:0811.1575
74. (with Frederic Le Roux, Maria Roginskaya and Ian Short) Flowability of plane homeomorphisms. Preprint. 2009. ArXiv:0912.2012
75. (with Stephen M. Buckley) Wiring switches to light bulbs. Preprint. 2010.
76. (with Pamela Gorkin) Pervasive algebras and maximal subalgebras. Preprint. 2010. href="http://arxiv.org/abs/1005.0719"> ArXiv:1005.0719

Expository Papers in Mathematics:
1. (with W.J. Kirk) Roots of real polynomials, IMS Newsletter 4 (1981) 24-27.
2. (with A. O'Cairbre) News for complex variables teachers, IMS Newsletter 5 (1982) 28-30.
3. Theorems of Walsh-Lebesgue type, in Aspects of Contemporary Complex Analysis, ed. Brannan and Clunie, Academic Press 1980, pp.461467.
4. Five generalisations of the Weierstrass approximation theorem, Proceedings RIA, 81A (1981) 65-69.
5. Complex powers, IMTA Newsletter 49 (1982) 18-32.
6. Qualitative rational approximation on plane compacta, in Lectures in Banach Spaces, Harmonic Analysis, and Probability, LNM995 Springer 1983, pp.103-122.
7. Restrictions of uniform algebras, in Complex Analysis and Applications 1981, Sofia 1984, pp.161-166. MR 88e:46042
8. Capacities, analytic and other, IMS Newsletter 13 (1985) 48-56. +Erratum, IMS Bulletin 16 (1986) 35, MR88a:30054ab
9. Rabbit Mathematics, IMTA Newsletter 58 (1985) 30-40.
10. A series of surprises , IMTA Newsletter 73 (1990) 28-33.
11. Capacities in function theory, in Potential Theory, ed. M. Kishi, Walther de Gruyter, Berlin, New York. 1991. pp. 93-105. MR 93j:30001.
12. Notes on the Symmetric Concrete Spaces. Maynooth Lecture Notes. 1990. (102+iii pp.)
13. Research in progress , March 2000. Maynooth University Record (2000) 89--92.
14. The Western Front. IMS Bulletin 57 (2006) 81-91.
15. A Quaternionic Gem. IMTA Newsletter 105 (2006) 16-25.
16. Greenberg's betweenness axioms. To appear.
17. A little help from my friends. IMS Bulletin 64 (2009) 31-42.
18. Integral binomial coefficients. Preprint, 2010.

Book review:
David R. Adams and Lars Inge Hedberg. Function Spaces and Potential Theory. Bull. LMS (1996)

Problems: 1. AMM problems solved: Problem E1822, 84(1977)569-570, Problem 6051, 84(1977) 492. I also posed a few in the 1970's.
2. (With Maria Roginskaya) Inequality for number of sums. To appear.
3. (With Vassily Bernik) Some problems about area and perimeter. IMTA Newsletter, to appear.

Math. Reviews: large number (prior to about 1990).

Non-Mathematical Work:

1. The interpretation of Megalithic art.

Principles for the interpretation of megalithic art, to appear.

2. The causes of Multiple Sclerosis.
(with E. Keelan, D. Lord, and H. Staunton) Application of oligogenetic calculus to MS, presented at Irish Neurological Association, May 1988.
(with D.Lord, H.Staunton, and E.Keelan) MS susceptibility is determined by an autosomal locus and an X-locus, presented at the World Congress of Neurology, New Delhi, October 1989.
(with D.Lord, H.Staunton, and E.Keelan) The inheritance of MS susceptibility, Ir. J. Med. Sci. 159, Supplement 8 (1990) 1-20.
(with D.Lord, H.Staunton, and E.Keelan) The inheritance of MS susceptibility, IFMSS Update 4 (1991) 16.
The inheritance of MS susceptibility, IFMSS Annual Conference Abstracts 1990, p. 10.

3. Humour.
A Sociological Question, IMS Bulletin 19 (1987) 49-51.
Letter to the Editor. IMS Bulletin 53 (2004) 11.
4. Various.
Tribute to Brother Fabian McGrath. Drimnagh Castle CBS 50th Anniversary volume. 2004.
Tribute to Philip Gormley. In Jennifer Gormley's memorial book on Paddy Gormley. 2004.
Tribute to William Curtis (Fr. Emmanuel) OCSO, in Liam Maher's History of the Cistercian College, Roscrea. 2004.
Welcome address to First Science Mathematics. In Thomas A.F. Kelly (ed), What Price the University?, NUI Maynooth. 2006. pp 182-8.
School Geometry. IMTA Newsletter 109 (2009) 21-8.
Appendix 1 to the Schools Syllabus Document: Geometry Course for Post-primary School Mathematics. NCCA. 2008. (draft) 45pp. Download latest from NCCA website.

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Updated 12.3.2008.