Publications
Papers:
- Epireflections in the category of topological groups,
Rendiconti di Matematica (4) 1981, Vol. 1, serie VII, 609-617
- On systems of cogenerators for epireflective subcategories,
with A. Tozzi, Riv. Mat. Univ. Parma (4) 9 (1983) 373-377
- Epireflections versus bireflections for topological functors,
Quaest. Math., 8 (1) 1985, 47-61
- Closure operators, monomorphisms and epimorphisms in categories of groups,
Cahiers Topologie Geom. Differentielle Categoriques, Vol. XXVII-2 (1986)
151-167
- Closure operators and functorial topologies,
J. Pure Appl. Algebra 55 (1988) 251-259
- Compact objects, surjectivity of epimorphisms and compactifications,
Cahiers Topologie Geom. Differentielle Categoriques, Vol XXXI-1 (1990) 53-65
- Global closure operators versus subcategories,
with G. E. Strecker, Quaest. Math. 13 (3&4) (1990) 417-424
- A factorization of the Pumplün-Röhrl connection,
with J. Koslowski and G. E. Strecker, Topology and its Appl. 44 (1992) 69-76
- Regular closure operators and compactness,
Cahiers Topologie Geom. Differentielle Categoriques Vol. XXXIII-1 (1992)
21-31
- Hereditarity of closure operators and injectivity,
with E.Giuli, Comment. Math. Univ. Carol. 33, 1 (1992)
149-157
- Hereditary and modal closure operators,
with J. Koslowski and G. E. Strecker, Category Theory 1991, Proceedings of
the Summer International Meeting in Montreal (Montreal, Canada,
June 1991 ), C.M.S Conference Proceedings, AMS (1992) 111-132
- Categorical closure operators via Galois connections,
with J. Koslowski and G. E. Strecker, Recent Developments of General
Topology and its Applications, International Conference in Memory of
Felix Hausdorff (1868-1942), Mathematical Research 67, Akademie Verlag,
Berlin (1992) 72-79
- Epimorphisms in categories of separated fuzzy topological spaces,
with I. Alderton, Fuzzy Sets and Systems 56 (1993) 323-330
- Closure operators and polarities,
with J. Koslowski and G. E. Strecker, Proceedings of the 1991 Summer
Conference on General Topology and its Applications (Madison,
Wisconsin, June 1991 ) Annals of the New York Academy of Sciences,
Vol. 704 (1993) 38-52
- Closure operators and connectedness,
with D. Hajek, Topology and its Appl. 55 (1994) 29-45
- Regular closure operators,
with J. Koslowski and G. E. Strecker, Journal of Applied Categorical
Structures 2 (1994) 219-244
- An approach to a dual of regular closure operators,
with J. Koslowski and G. E. Strecker, Cahiers Topologie Geom.
Differentielle Categoriques Vol. XXXV-2 (1994) 109-128
- Connectedness, disconnectedness and closure operators, a more general approach,
Proceedings of the Workshop on Categorical Topology (L'Aquila 1994),
Kluwer Academic Publishers (1996) 129-138
- Connectedness, disconnectedness and closure operators: Further results,
Quaest. Math. 20 (4) (1997) 611-638
- Connectedness and disconnectedness: a different perspective, Quaest. Math. 21 (1\&2) (1998) 117-133
- Closure operators and fuzzy connectedness, with I. W. Alderton, Fuzzy Sets and Systems 104 (3) (1999) 397-405
- Connectedness classes, Quaest. Math. 23 (3) (2000) 313-334.
- Disconnectedness classes, Quaest. Math. 24 (1) (2001)
75-92.
- Categorical closure operators, Categorical Perspectives,
Trends in Mathematics Series, Birkhäuser Boston (2001) 109-150.
- Connectedness with respect to a closure
operator, Journal of Applied Categorical Structures 9 (2001) 285-301
- Closure operators with respect to a functor,
with E. Giuli, Journal of Applied Categorical Structures 9 (2001) 525-537
- A link between two connectedness notions,
with D. Holgate, Journal of Applied Categorical Structures 11 (2003) 473-486
- Closure operator constructions depending on one parameter,
with D. Holgate, Quaest. Math. 26(3) (2003) 289-305
- U-Closure Operators and Compactness,
with E. Giuli, Journal of Applied Categorical Structures 13 (2005) 453-467
- T1 Separation in a category,
Quaestiones Mathematicae 29 (2006) 151-170
- Discrete objects, splitting closure and connectedness,
Quaestiones Mathematicae 31 (2008) 1-20
- A categorical approach to absolute closure,
with D. Holgate, Acta Mathematica Hungarica 126(4) (2010) 295-314
- Interior Operators and Topological Connectedness,
with J. Ramos, Quaest. Math. 33 (2010) 290-304
- Interior operators in a category: idempotency and heredity,
Topology Appl., 158 (2011) 2332-2339
- Interior operators and topological separation,
with E. Murcia, Topology Appl., 160 (2013) 1476-1485
- Interior operators, open morphisms and the preservation property,
Journal of Applied Categorical structures (to appear)
- A diagram of Galois connections of functorial topologies,
with S. Dziobiak (submitted)
Books: