PAPERS
1. On the S. N. Bernstein polynomials. The operator spectrum. (Romanian) Gaz. Mat., seria A, vol.71, nr.12, 448-451, 1966.
2. Remarks on triples in enriched categories. (in collaboration with H. Wiesler) Bull. Australl. Math. Soc., vol.13, nr.3, 375-383, 1970.
3. A variety of associative structures with one-sided zero elements in autonomous categories. Rev. Roum. Math. Pures et Appl., tome 17, 1317-1322, 1972.
4. Conjugation relations in gamma-categories. Studia Univ. Babeş-Bolyai, Series Math.-Mech., fasc.2, 5-10, 1974.
5. Categories whose objects are determined by their rings of endomorphisms. Bull. Australl. Math. Soc., vol.15, nr.1, 65-72, 1976.
6. On an enriched theory of modules I. Studia Univ. Babeş-Bolyai, Math., fasc.3, nr.2, 25-38, 1979.
7. On an enriched theory of modules II. Studia Univ. Babeş-Bolyai, Math., fasc.3, nr.2, 3-17, 1980.
8. Some remarks about mutual pseudocomplements in lattices. Mathematica, vol.22(45), nr.2, 237-239, 1980.
9. Note on B-high subgroups of abelian groups. Mathematica, vol.23(46), nr.1, 9-10, 1981.
10. Torsion in lattices. Mathematica, vol.25(48), nr.2, 127-129, 1983.
11. Restricted socle conditions in lattices. Mathematica, vol.28(51), nr.1, 27-30, 1986.
12. Abelian groups with pseudocomplemented lattice of subgroups. Studia Univ. Babeş-Bolyai, Math., vol.31, fasc.3, 39-41, 1986.
13. Abelian groups with continuous lattice of subgroups. (in collaboration with K. Benabdallah) Studia Univ. Babeş-Bolyai, Math., vol.32, fasc.1, 31-32, 1987.
14. Cocompact elements in algebraic lattices.
Seminar of Algebra, 41-46, Univ. ''Babeş-Bolyai'',
15. Cocompact elements in algebraic lattices.
Proceedings of the
16. Torsion-free components in non-splitting
mixed abelian groups. Preprint nr.2, Univ. Babeş-Bolyai,
17. Socle and radical as pure subgroups of an abelian group. Mathematica, vol.33(56), nr.1-2, 17-20, 1991.
18. Torsion-free components and topology.
Proceedings on the Conference on Algebra (
19. La T-topologie d'un groupe abelien. Studia Universitatis Babeş Bolyai, Mathematica, XL, 4, 3-12, 1995.
20. Note on a module-theoretic exercise. Mathematica 37(60), nr.1-2, 57-59, 1995.
21. Correction: La T-topologie d'un groupe abelien. 1996, Studia Universitatis Babeş-Bolyai, Mathematica, XLI, 3, 107-108.
22. Cocompact lattices. Mathematica Panonica, vol.7, nr.2, 185-190, 1996.
23. Distributively
generated lattices. Analele Ştiinţifice ale
Universităţii ''Al. I. Cuza'' din
24. Pure subgroups of mixed abelian groups including the torsion part. Mathematica vol.39(62), nr.1, 29-35, 1997.
25. Essential-pure subgroups of abelian groups. Mathematica, vol.39(62), nr.2, 195-200, 1997.
26. Coatomic lattices and abelian group topics. Libertas Mathematica, XVII, 125-131, 1997.
27. On a problem of Prof. A. Orsatti. Abelian groups, Module Theory, and Topology (Proceedings in honor of Adalberto Orsatti 60-th birthday, Padova june 1997). Lecture Notes in Pure and Applied Math., vol.201, 105-112, Marcel Dekker, 1998.
28. Purity in Gamma - lattices. Mathematica, vol. 40(63), nr.2, 155-158, 1998.
29. Torsion in Gamma - lattices. Studia Universitatis Babeş-Bolyai, Mathematica, XLIII, 1, 1-5, 1998.
30. Purity in ideal lattices. Analele Ştiinţifice ale Universităţii ''Al. I. Cuza'' din Iaşi, XLV, s.I.a., fasc. 1, 39-44, 1999.
31. A useful category for
mixed abelian groups, Theory and Applications of Categories, vol. 5, no. 4,
81-90, 1999.
32. Hypergroups associated to lattices. (in collaboration with V. Leoreanu) Italian Journal of Pure and Applied Mathematics, No.9, 165-173, 2001.
33. The
fully-invariant-extension property for abelian groups. (in collaboration
with G. Birkenmeier, L. Fuchs and P. Goeters) Communications in Algebra, 29,
673-685, 2001.
34. Abelian groups with
semi-local rings of endomorphisms. Communications in Algebra, 30 (9),
4105-4111, 2002.
35. Abelian groups
have/are near Frattini subgroups. (in collaboration with
36. Fully-invariant elements
in lattices. Mathematica, Tome 45(68), No. 1, 19 - 24, 2003.
37. Breaking points in subgroup
lattices. (in collaboration with M. Deaconescu) Proceedings, Groups St
Andrews 2001 in
38. Distributivity and
IM-lattices. (in collaboration with R. Khazal) Italian Journal of Pure and
Applied Mathematics, vol.15, 175-184, 2004.
39. The total number of
subgroups of a finite Abelian group. Scientiae Mathematicae Japonicae, 60,
No. 1, 157 – 167, 2004.
40. Abelian groups whose
subgroup lattice is the union of two intervals. (in collaboration with
41. On torsion-free periodic
rings. (in collaboration with
42. Abelian groups determined
by subgroup lattices of direct powers, Archiv der Math., vol. 86, no. 2
(2006), 97 - 100.
43. Self-c-injective Abelian
groups. (in collaboration with
44. Every Abelian group
is determined by a subgroup lattice, (in collaboration with
45. A solution to a
problem on lattice isomorphic Abelian groups, (in collaboration with
46. Endomorphisms
and automorphisms of squares of abelian groups, (in collaboration with
47. Split-extensions
of Exchange Rings: a direct proof, Journal of Algebra and Applications,
vol. 8, No. 5 (2009), 629 - 632.
48. Rings with lattices
of idempotents, Communications in Algebra, vol. 38 (2010), p. 1050 - 1056.
49. Morphic Abelian
Groups, Journal of Algebra and Applications, vol. 9, no. 1 (2010).
50. Realization theorems for triangular
rings, to appear in Scientific Annals of "Al.I. Cuza" University
of Iasi, 2010.
51. One-sided clean
rings, submitted to Studia Universitatis Babes-Bolyai.
52. Modules with Abelian endomorphism
rings, (in collaboration with
53. Modules with Dedekind finite endomorphism
rings, (in collaboration with