1 |
Maclane, S., Categories for the Working Mathematician, Graduate Text in Mathematics, Volume 5. Springer-Verlag, New York (1971).
|
2 |
Mucuk, O., Sahan, T. and Alemdar, N., Normality and quotients in crossed modules and group-groupoids, Applied Categorical Structures 23 (3) (2015), 415-428.
DOI
|
3 |
Mucuk, O., Kilicarslan, B., Sahan T. and Alemdar N., Group-groupoids and monodromy groupoids, Topology Appl. 158 (15) (2011), 2034-2042.
DOI
|
4 |
Mucuk, O. and Sahan, T., Coverings and crossed modules of topological groups with operations, Turkish Journal of Mathematics 38 (5), 833-845.
DOI
|
5 |
Mucuk, O. and Sahan, T., Group-groupoid actions and liftings of crossed modules, Georgian Mathematical Journal, Doi: 10.1515/gmj-2018-0001.
DOI
|
6 |
Mucuk, O. and Akiz, H. F., Monodromy groupoids of an internal groupoid in topological groups with operations, Filomat 29:10 (2015), 2355-2366.
DOI
|
7 |
N. Martins-Ferreira, A. Montoli and M. Sobral., Semidirect products and crossed modules in monoids with operations, J. Pure Appl. Algebra 217 (2013), 334-347.
DOI
|
8 |
Orzech, G., Obstruction theory in algebraic categories I, II., J. Pure Appl. Algebra 2 (1972), 287-314, 315-340.
DOI
|
9 |
Patchkoria, A., Crossed Semimodules and Schreier Internal Categories In The Category of Monoids, Georgian Mathematical Journal 5 (6) (1998), 575-581.
DOI
|
10 |
Porter, T., Extensions, crossed modules and internal categories in categories of groups with operations, Proc. Edinb. Math. Soc. 30 (1987) , 373-381.
DOI
|
11 |
Porter, T., Crossed Modules in Cat and a Brown-Spencer Theorem for 2-Categories, Cahiers de Topologie et Geometrie Differentielle Categoriques, Vol. XXVI-4 (1985).
|
12 |
Akiz, H.F., Alemdar, N., Mucuk, O. and Sahan, T., Coverings of internal groupoids and crossed modules in the category of groups with operations, Georgian Mathematical Journal 20 (2) (2013), 223-238.
|
13 |
Baez, J.C. and Lauda, A.D., Higher Dimensional Algebra V: 2-Groups, Theory and Applications of Categories 12 (14) (2004), 423-491.
|
14 |
Baez J.C. and Stevenson D. The classifying space of a topological 2-group, Algebraic Topology Abel Symposia; 4: pp 1-31 (2009).
|
15 |
Baez, J.C., Baratin, A., Freidel, L. and Wise, D.K., Infinite-Dimensional Representations of 2-Groups, Memoirs of the American Mathematical Society, Volume 219, Number 1032, (2012).
DOI
|
16 |
Whitehead, J.H.C., Combinatorial homotopy II, Bull. Amer. Math. Soc. 55 (1949), 453-496.
DOI
|
17 |
Sahan, T., Further remarks on liftings of crossed modules, Hacettepe J. Math. Stat. 48 (3) (2019), 743-752. Doi: 10.15672/HJMS.2018.554.
|
18 |
Temel, S., Topological Crossed Semimodules and Schreier Internal Categories in the Category of Topological Monoids, Gazi University Journal of Science 29 (4) (2016), 915-921 .
|
19 |
Temel, S., Crossed semimodules of categories and Schreier 2-categories, Tbilisi Math. J. 11 (2) (2018), 47-57.
DOI
|
20 |
Whitehead, J.H.C., Note on a previous paper entitled "On adding relations to homotopy group", Ann. Math. 47 (1946), 806-810.
DOI
|
21 |
Brown, R. and Mucuk, O., Covering groups of non-connected topological groups revisited, Math. Proc. Camb. Phil. Soc. 115 (1994), 97-110.
DOI
|
22 |
Brown, R., Groupoids and crossed objects in algebraic topology, Homology Homotopy Appl. 1 (1999), 1-78.
DOI
|
23 |
Brown, R., Higher dimensional group theory. In: Low Dimensional Topology, London Math. Soc. Lect. Notes, 48, pp. 215238. Cambridge Univ. Press, (1982)
|
24 |
Brown, R. and Huebschmann, J., Identities among relations. In: Low Dimentional Topology, London Math. Soc. Lect. Notes, 48, pp. 153-202. Cambridge Univ. Press (1982).
|
25 |
Brown, R. and Spencer, C.B., G-groupoids, crossed modules and the fundamental groupoid of a topological group, Proc. Konn. Ned. Akad. 79 (1976), 296-302.
|
26 |
Brown, R., Higgins, P. J. and Sivera, R., Nonabelian Algebraic Topology: Filtered spaces, crossed complexes, cubical homotopy groupoids, European Mathematical Society Tracts in Mathematics 15 (2011).
|
27 |
Brown, R and Huebschmann, J., Identities among relations, pages 153-202. London Mathematical Society Lecture Note Series. Cambridge University Press, (1982).
|
28 |
Huebschmann, J., Crossed n-fold extensions of groups and cohomology, Comment. Math. Helvetici 55 (1980), 302-314.
DOI
|
29 |
Loday, J.-L., Cohomologie et groupes de Steinberg relatifs, J. Algebra 54 (1978), 178-202.
DOI
|
30 |
Loday, J.-L., Spaces with finitely many non-trivial homotopy groups, J.Pure Appl. Algebra 24 (2) (1982), 179-202 .
DOI
|
31 |
Lue, A.S.T., Cohomology of groups relative to a variety, J. Algebra 69 (1981), 155-174.
DOI
|