| 27.2.1998 | D. Dimovski | (4,2)-grupe homologije |
| 13.3.1998 | M. Željko | Toge Cantorjeve množice v R^3 |
| 20.3.1998 | J. Malešič | Fraktalna dimenzija in Hausdorffova prostornina |
| 27.3.1998 | M. Cencelj | O virtualni dimenziji Coxeterjevih grup |
| 3.4.1998 | D. J. Garity | Curves with self-intersections on surfaces |
| 10.4.1998 | D. J. Garity | Thin cellular decompositions of R^n |
| 17.4.1998 | U. H. Karimov | On some acyclic and cell-like compacta |
| 24.4.1998 | D. J. Garity | Symmetric products |
| 8.5.1998 | E. V. Ščepin | On asphericity of compacta |
| 15.5.1998 | E. V. Ščepin | A new approach to Bockstein’s theory of cohomological dimension of compacta |
| 22.5.1998 | E. V. Ščepin | On Hausdorff measure and dimension |
| 29.5.1998 | Yu. V. Muranov | Surgery of closed manifolds with dihedral fundamental group |
| 5.6.1998 | M. Hušek | Productivity of properties of topological groups |
| 12.6.1998 | U. H. Karimov | A noncontractible cell-like compactum whose suspension is contractible |
| 19.6.1998 | Yu. V. Muranov | Splitting along a one-sided submanifold |
| 26.6.1998 | M. Željko | 1-ULC karakterizacija krotkosti Cantorjevih množic v dimenzijah ≥ 4 |
| 7.7.1998 | J. A. Hillman | Geometries and geometric decompositions of 4-dimensional manifolds |
| 22.7.1998 | A. B. Skopenkov | A generalization of the Haefliger-Weber theorems on embeddings and immersions |
| 18.9.1998 | L. Gorniewicz | Present state of the Brouwer fixed point theorem for multivalued maps |
| 2.10.1998 | J. Jaworowski | The index of some free actions in lens spaces |
| 16.10.1998 | Z. Karno | Essential maps – A survey |
| 23.10.1998 | S. M. Ageev | On the role of countable dimensionality in extension theory |
| 30.10.1998 | S. M. Ageev | On partitions of Polish spaces |
| 6.11.1998 | S. M. Ageev | On a problem of Nöbeling |
| 13.11.1998 | A. B. Skopenkov | On cell-like resolutions of 2-dimensional polyhedra by special ones |
| 20.11.1998 | A. B. Skopenkov | Borromean rings and embedding invariants |
| 27.11.1998 | P. V. Semenov | A new method of construction of selections as uniform limits of δ-continuous ε-selections |
| 4.12.1998 | P. V. Semenov | Relations between nonconvexity of a set and its neighborhoods |
| 11.12.1998 | P. V. Semenov | Singlevalued approximations of usc mappings with infinite-dimensional domain |
| 18.12.1998 | D. Dikranjan | Completeness in topological groups |
