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- Marino Gran
Marino Gran
Professeur ordinaire
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´¡²Ô²Ôé±ð Label Institution 1996 Diplômé d'é³Ù³Ü»å±ð²õ approfondies en mathématiques Сư³æ´«Ã½ 1999 Docteur en sciences Сư³æ´«Ã½
Category theory, homological algebra and universal algebra.Â
Gran, Marino ; Michel, Aline. Central extensions of preordered groups. In: Bulletin de la Société mathématique de France, Vol. 151, no.4, p. 659-686 (2023). doi:10.24033/bsmf.2881.
Gran, Marino ; Scherer, Jérôme. Conditional flatness, fiberwise localizations, and admissible reflections. In: Journal of the Australian Mathematical Society, Vol. ., no. ., p. . (2023). doi:10.1017/S1446788723000046 (Accepté/Sous presse).
Borceux, Francis ; Campanini, Federico ; Gran, Marino ; Tholen, Walter Paul. Groupoids and skeletal categories form a pretorsion theory in Cat. In: Advances in Mathematics, Vol. 426, p. 109110 (2023).
Borceux, Francis ; Campanini, Federico ; Gran, Marino. Pretorsion theories in lextensive categories. In: Israel Journal of Mathematics, Vol. ., no.., p. . (2022) (Accepté/Sous presse).
Borceux, Francis ; Campanini, Federico ; Gran, Marino. The stable category of internal preorders in a pretopos I: general theory. In: Journal of Pure and Applied Algebra, Vol. 226, no. 9, p. 106997 (2022). doi:10.1016/j.jpaa.2021.106997.
Borceux, Francis ; Campanini, Federico ; Gran, Marino. The stable category of preorders in a pretopos II: the universal property. In: Annali di Matematica Pura ed Applicata, Vol. https://doi.org/10.1007/s10231-022-01222-w (2022). doi:10.1007/s10231-022-01222-w.
Gran, Marino ; Gray, James Richard Andrew. Action representability of the category of internal groupoids. In: Theory and Applications of Categories, Vol. 37, no. 37, p. 1-13 (2021).
Facchini, Alberto ; Finocchiaro, Carmelo ; Gran, Marino. Pretorsion theories in general categories. In: Journal of Pure and Applied Algebra, Vol. 25, no.2, p. 106503 (2021). doi:10.1016/j.jpaa.2020.106503. doi:10.1016/j.jpaa.2020.106503.
Gran, Marino ; Michel, Aline. Torsion theories and coverings of preordered groups. In: Algebra Universalis, Vol. 82, no. 22, p. https://doi.org/10.1007/s00012-021-00709-6 (19 February 2021). doi:10.1007/s00012-021-00709-6.
Facchini, Alberto ; Finocchiaro, Carmelo Antonio ; Gran, Marino. A new Galois structure in the category of internal preorders. In: Theory and Applications of Categories, Vol. 35, no.11, p. 326–349 (2020).
Gran, Marino ; Rodelo, Diana ; Tchoffo Nguefeu, Idriss. Facets of congruence distributivity in Goursat categories. In: Journal of Pure and Applied Algebra, Vol. 224, no.10, p. 106380 (2020). doi:10.1016/j.jpaa.2020.106380.
Cigoli, Alan Stefano ; Duvieusart, Arnaud ; Gran, Marino ; Mantovani, Sandra. Galois theory and categorical Peiffer commmutator. In: Homology, Homotopy and Applications, Vol. 22, no. 2, p. 323-346 (2020). doi:10.4310/HHA.2020.v22.n2.a20.
Gran, Marino ; Heunen, Chris ; Tull, Sean. Monoidal characterisation of groupoids and connectors. In: Topology and Its Applications, Vol. 273, no. 15, p. 106966 (2020). doi:10.1016/j.topol.2019.106966.
Maria José Arroyo Paniagua ; Alberto Facchini ; Gran, Marino ; Janelidze, George. Unusual spectral categories. In: Universita di Padova. Seminario Matematico. Rendiconti, Vol. 144, no.., p. 13-25 (2020). doi:10.4171/RSMUP/53.
Gran, Marino ; Sterck, Florence ; Vercruysse, Joost. A semi-abelian extension of a theorem by Takeuchi. In: Journal of Pure and Applied Algebra, Vol. 223, no. 10, p. 4171-4190 (2019). doi:10.1016/j.jpaa.2019.01.004.
Gran, Marino ; Janelidze, George ; Sobral, Manuela. Split extensions and semidirect products of unitary magmas. In: Comment. Math. Univ. Carolin., Vol. 60, no.4, p. 509-527 (2019). doi:10.14712/1213-7243.2020.001.
Gran, Marino ; Rodelo, Diana ; Tchoffo Nguefeu, Idriss. Variations of the Shifting Lemma and Goursat categories. In: Algebra Universalis, Vol. 80, no.2, p. 1-12 (2019). doi:10.1007/s00012-018-0575-z.
Gran, Marino ; Cigoli, Alan Stefano ; Everaert, Tomas. A relative monotone-light factorization system for internal groupoids. In: Applied Categorical Structures, Vol. 26, no. 5, p. 931-942 (2018). doi:10.1007/s10485-018-9515-5.
Arnaud Duvieusart ; Gran, Marino. Higher commutator conditions for extensions in Mal'tsev categories. In: Journal of Algebra, Vol. 515, p. 298-327 (2018). doi:10.1016/j.jalgebra.2018.09.002.
Gran, Marino ; Clementino, Maria Manuel ; Janelidze, George. Some remarks on protolocalizations and protoadditive reflections. In: Journal of Algebra and its Applications, Vol. 17, no. 11, p. 1850207 (2018). doi:10.1142/S0219498818502079.
Gran, Marino ; Kadjo, Gabriel ; Vercruysse, Joost. Split extension classifiers in the category of cocommutative Hopf algebras. In: Bulletin of the Belgian Mathematical Society - Simon Stevin., Vol. 25, no. 3, p. 355-382 (2018).
Rodelo, Diana ; Gran, Marino. Beck-Chevalley condition and Goursat categories. In: Journal of Pure and Applied Algebra, Vol. 221, no. 10, p. 2245-2457 (October 2017).
Duckerts-Antoine, Mathieu ; Gran, Marino ; Janelidze, Zurab. Epireflective subcategories and formal closure operators. In: Theory and Applications of Categories, Vol. 32, no.15, p. 526-546 (2017).
Gran, Marino ; Rodelo, Diana ; Tchoffo Nguefeu, Idriss. Some remarks on connectors and groupoids in Goursat categories. In: Logical Methods in Computer Science, Vol. 13, no. 3, p. 1-12 (August 23, 2017).
Even, Valérian ; Gran, Marino ; Montoli, Andrea. A characterization of central extensions in the variety of quandles. In: Theory and Applications of Categories, Vol. 31, no.8, p. 201-216 (2 avril 2016).
Kadjo, Gabriel ; Vercruysse, Joost ; Gran, Marino. A torsion theory in the category of cocommutative Hopf algebras. In: Applied Categorical Structures, Vol. 24, p. 206-232 (2016). doi:10.1007/s10485-015-9396-9.
Gran, Marino ; Even, Valérian. Closure operators in the category of quandles. In: Topology and Its Applications, Vol. 200, no. 1, p. 237-250 (1.03.2016). doi:10.1016/j.topol.2015.12.021.
Gran, Marino ; Lack, Stephen. Semi-localizations of semi-abelian categories. In: Journal of Algebra, Vol. 454, p. 206-232 (May 2016). doi:10.1016/j.jalgebra.2016.01.024.
Janelidze, George ; Clementino, Maria Manuel ; Porter, Timothy ; Gran, Marino. Special volume dedicated to Ronald Brown for his 80th birthday. In: Journal of Homotopy and Related Structures, Vol. ., no.., p. 1-14 (.). doi:10.1007/s40062-016-0151-1.
Gran, Marino ; Everaert, Tomas. Protoadditive functors, derived torsion theories and homology. In: Journal of Pure and Applied Algebra, Vol. 219, no. 8, p. 3629-3676 (2015). doi:10.1016/j.jpaa.2014.12.015.
Gran, Marino ; Everaert, Tomas. Some aspects of semi-abelian homology and protoadditive functors. In: Journal of Generalized Lie Theory and Applications, Vol. 9, no. 238, p. 1000238 (2015).
Gran, Marino ; Rodelo, Diana. On 2-star-permutability in regular multi-pointed categories. In: Journal of Algebra and its Applications, Vol. 13, no. 8 (Décembre 2014). doi:10.1142/S0219498814500686.
Even, Valérian ; Gran, Marino. On factorization systems for surjective quandle homomorphisms. In: Journal of Knot Theory and Its Ramifications, Vol. 23, no. 11 (2014). doi:10.1142/S0218216514500606.
Gran, Marino ; Janelidze, Zurab. Star-regularity and regular completions. In: Journal of Pure and Applied Algebra, Vol. 218, no.10, p. 1771-1782 (October 2014). doi:10.1016/j.jpaa.2014.02.003.
Gran, Marino ; Rodelo, Diana. The Cuboid Lemma and Mal'tsev categories. In: Applied Categorical Structures : a journal devoted to applications of categorical methods in algebra, analysis, order, topology and computer science, Vol. 22, no. 5-6, p. 805-816 (2014). doi:10.1007/s10485-013-9352-5.
Gran, Marino ; Janelidze, George ; Ursini, Aldo. Weighted commutators in semi-abelian categories. In: Journal of Algebra, Vol. 397, p. 643-665 (2014). doi:10.1016/j.jalgebra.2013.07.037.
Gran, Marino ; Ngaha Ngaha, Mathilde Olivette. Effective descent morphisms in star-regular categories. In: Homology, Homotopy and Applications, Vol. 15, no. 2, p. 127-144 (2013). doi:10.4310/HHA.2013.v15.n2.a7.
Gran, Marino ; Everaert, Tomas. Monotone-light factorisation systems and torsion theories. In: Bulletin des Sciences Mathématiques, Vol. 137, p. 996-1006 (2013). doi:10.1016/j.bulsci.2013.02.004.
Gran, Marino ; Janelidze, Zurab ; Rodelo, Diana. 3 × 3 lemma for star-exact sequences. In: Homology, Homotopy and Applications, Vol. 14, no.2, p. 1-22 (2012). doi:10.4310/HHA.2012.v14.n2.a1.
Duckerts-Antoine, Mathieu ; Everaert, Tomas ; Gran, Marino. A description of the fundamental group in terms of commutators and closure operators. In: Journal of Pure and Applied Algebra, Vol. 216, no. 8-9, p. 1837-1851 (August 2012). doi:10.1016/j.jpaa.2012.02.022.
Gran, Marino ; Janelidze, Zurab ; Ursini, Aldo. A good theory of ideals in multi-pointed regular categories. In: Journal of Pure and Applied Algebra, Vol. 216, p. 1905-1919 (August 2012). doi:10.1016/j.jpaa.2012.02.028.
Gran, Marino ; Rodelo, Diana. A new characterisation of Goursat categories. In: Applied Categorical Structures : a journal devoted to applications of categorical methods in algebra, analysis, order, topology and computer science, Vol. 20, no. 3, p. 229-238 (2012). doi:10.1007/s10485-010-9236-x.
Gran, Marino ; Rodelo, Diana. On the characterisation of Jonsson-Tarski and of subtractive varieties. In: Diagrammes, Vol. 67-68 (supp.), p. 101-115 (supp.).
Gran, Marino ; Janelidze, Zurab ; Rodelo, Diana ; Ursini, Aldo. Symmetry of regular diamonds, the Goursat property, and subtractivity. In: Theory and Applications of Categories, Vol. 27, no.6, p. 80-96 (2012).
Everaert, Tomas ; Gran, Marino. Homology of N-fold groupoids. In: Theory and Applications of Categories, Vol. 23, no. 2, p. 22-41 (2010).
Gran, Marino ; Janelidze, George. Covering morphisms and normal extensions in Galois structures associated with torsion theories. In: Cah. Topol. Géom. Différ. Catég., Vol. 50, no. 3, p. 171-188 (2009).
Adamek, Jiri ; Gran, Marino ; Ehresmann, Andrée C. ; Janelidze, George ; Kieboom, Rudger W.. Foreword [1st Volume dedicated to F. Borceux]. In: Cah. Topol. Géom. Différ. Catég., Vol. 50, no. 3, p. 163-170 (2009).
Gran, Marino ; Rodelo, Diana. A universal construction in Goursat categories. In: Cah. Topol. Géom. Différ. Catég., Vol. 49, no. 3, p. 196-208 (2008).
Everaert, Tomas ; Gran, Marino ; Van der Linden, Tim. Higher Hopf formulae for homology via Galois Theory. In: Advances in mathematics, Vol. 217, no. 5, p. 2231-2267 (2008). doi:10.1016/j.aim.2007.11.001.
Gran, Marino ; Van der Linden, Tim. On the second cohomology group in semi-abelian categories. In: Journal of Pure and Applied Algebra, Vol. 212, no. 3, p. 636-651 (2008). doi:10.1016/j.jpaa.2007.06.009.
Borceux, Francis ; Gran, Marino ; Mantovani, S.. Protolocalisations of exact Mal'cev categories. In: Theory and Applications of Categories, Vol. 21, no. 3, p. 37-60 (2008).
Borceux, Francis ; Clementino, Maria Manuel ; Gran, Marino ; Sousa, Lurdes. Protolocalisations of homological categories. In: Journal of Pure and Applied Algebra, Vol. 212, no. 8, p. 1898-1927 (2008). doi:10.1016/j.jpaa.2007.11.005.
Borceux, Francis ; Gran, Marino ; Mantovani, S.. On closure operators and reflections in Goursat categories. In: Universita degli Studi di Trieste. Istituto di Matematica. Rendiconti, Vol. 39, p. 87-104 (2007).
Everaert, Tomas ; Gran, Marino. On low-dimensional homology in categories. In: Homology homotopy and applications, Vol. 9, no. 1, p. 275-293 (2007). doi:10.4310/HHA.2007.v9.n1.a12.
Gran, Marino ; Rossi, Valentina. Torsion theories and Galois coverings of topological groups. In: Journal of Pure and Applied Algebra, Vol. 208, no. 1, p. 135-151 (2007). doi:10.1016/j.jpaa.2005.12.001.
Everaert, T ; Gran, Marino. Precrossed modules and Galois theory. In: Journal of Algebra, Vol. 297, no. 1, p. 292-309 (2006). doi:10.1016/j.jalgebra.2005.06.034.
Gran, Marino ; Everaert, Tomas. Relative commutator associated with varieties of $n$-nilpotent and of $n$-solvable groups. In: Arch. Math. (Brno), Vol. 42, no. 4, p. 387=396 (2006).
Bourn, Dominique ; Gran, Marino. Torsion theories in homological categories . In: Journal of algebra, Vol. 305, no. 1, p. 18-47 (2006). doi:10.1016/j.jalgebra.2006.07.011.
Gran, Marino ; Rossi, Valentina. Galois Theory and Double Central Extensions. In: Homology, Homotopy and Applications, Vol. 6, no.1, p. 283-298 (2004). doi:10.4310/HHA.2004.v6.n1.a16.
Bourn, D ; Gran, Marino. Normal sections and direct product decompositions. In: Communications in Algebra, Vol. 32, no. 10, p. 3825-3842 (2004). doi:10.1081/AGB-200027750.
Gran, Marino ; Rosicky, Jiri. Semi-abelian monadic categories. In: Theory and Applications of Categories, Vol. 13, no.6, p. 106-113 (2004).
Gran, Marino ; Rosicky, J. Special reflexive graphs in modular varieties. In: Algebra universalis, Vol. 52, no. 1, p. 89-102 (2004). doi:10.1007/s00012-004-1876-y.
Bourn, D ; Gran, Marino. Central extensions in semi-abelian categories. In: Journal of pure and applied algebra, Vol. 175, no. 1-3, p. 31-44 (2002). doi:10.1016/S0022-4049(02)00127-5.
Bourn, D ; Gran, Marino. Centrality and connectors in Maltsev categories. In: Centrality and connectors in Maltsev categories, Vol. 48, no. 3, p. 309-331 (2002). doi:10.1007/s000120200003.
Bourn, Dominique ; Gran, Marino. Centrality and normality in protomodular categories. In: Theory and Applications of Categories, Vol. 9, no.8, p. 151-165 (2002).
Gran, Marino. Commutators and central extensions in universal algebra. In: Journal of pure and applied algebra, Vol. 174, no. 3, p. 249-261 (2002). doi:10.1016/S0022-4049(02)00170-6.
Gran, Marino. Semi-abelian exact completions. In: Homology, Homotopy and Applications, Vol. 4, no.1, p. 175-189 (2002). doi:10.4310/HHA.2002.v4.n1.a10.
Gran, Marino. Central extensions and internal groupoids in Maltsev categories. In: Journal of Pure and Applied Algebra, Vol. 155, no. 2-3, p. 139-166 (2001). doi:10.1016/S0022-4049(99)00092-4.
Gran, Marino ; Pedicchio, Maria Cristina. n-Permutable locally finitely presentable categories. In: Theory and Applications of Categories, Vol. 8, no.1, p. 1-15 (2001).
Gran, Marino. Internal categories in Mal'cev categories. In: Journal of Pure and Applied Algebra, Vol. 143, no. 1-3, p. 221-229 (1999). doi:10.1016/S0022-4049(98)00112-1.
Gran, Marino ; Vitale, Enrico. Localizations of Maltsev varieties. In: Theory and Applications of Categories, Vol. 5, no. 12, p. 281-291 (1999).
Gran, Marino ; Vitale, Enrico. On the exact completion of the homotopy category. In: Cahiers de Topologie et Geometrie Differentielle Categoriques, Vol. 39, no. 4, p. 287-297 (1998).
Clementino, Maria Manuel ; Alberto Facchini ; Gran, Marino. New Perspectives in Algebra, Topology and Categories (Coimbra Texts in Mathematics; 1), Springer: Coimbra, 2021. 9783030843182 ; 9783030843199. 258 p. doi:10.1007/978-3-030-84319-9.
New trends in Hopf algebras and tensor categories, éd. Gran, Marino ; Caenepeel, Stefaan ; Vercruysse, Joost ; Zhang, Yinhuo, Bulletin of the Belgian Mathematical Society - Simon Stevin, 2016. 1370-1444. 641-800 p.
Gran, Marino. An introduction to regular categories. In: M.M. Clementino, A. Facchini and M. Gran, New Perspectives in Algebra, Topology and Categories, Springer (Coimbra Mathematical Texts; 1), Springer: Coimbra, 2021, 113-145. 978-3-030-84319-9.
Bourn, Dominique ; Gran, Marino ; Jacqmin, Pierre-Alain. On the naturalness of Mal'tsev categories. In: Casadio C. and Scott P., Joachim Lambek: the interplay of mathematics, logic and linguistics, (Outstanding contributions to Logic; 20), Springer, 2021, 59-104. 978-3-030-66545-6.
Gran, Marino. Applications of Categorical Galois Theory in Universal Algebra. In: Galois Theory, Hopf Algebras and Semiabelian Categories vol. 43 (Fields Institute Communications; 43), American Mathematical Society: Providence, Rhode Island, 2004, p. 243-280.
Gran, Marino ; Bourn, Dominique. Categorical aspects of modularity. In: Janelidze, George (ed.) ; Pareigis, Bodo (ed.) ; Tholen, Walter (ed.), Galois Theory, Hopf Algebras and Semiabelian Categories (Fields Institute Communications; vol. 43), American Mathematical Society: Providence, Rhode Island, 2004, p. 77-100. 978-0-8218-3290-5.
Gran, Marino ; Bourn, Dominique. Regular, Protomodular and Abelian Categories. In: M.C. Pedicchio and W. Tholen, Categorical Foundations - Special Topics in Order, Topology, Algebra and Sheaf Theory (Encyclopedia of Mathematics and its Applications vol. 97), Cambridge University Press: Cambridge, 2004, p. 165-211.
Gran, Marino. Pretorsion theories. Category Theory 2020-21 (Università di Genova , du 30/08/2021 au 04/09/2021).
Gran, Marino. Semi-abelian categoriess, Hopf algebras and internal groupoids. ItaCa 2021 (Università degli Studi di Genova, du 20/12/2021 au 21/12/2021).
Arroyo Paniagua, MarÃa José ; Facchini, Alberto ; Gran, Marino ; Janelidze, George. What is the Spectral Category?. International conference on Rings and Factorizations (Graz, du 19/02/2018 au 23/02/2018). In: Springer Proceedings in Mathematics and Statistics, 2020. 978-303043415-1, p. 135-152. doi:10.1007/978-3-030-43416-8_7.
Gran, Marino. Categories for universal algebra. Summer School in Algebra and Topology 2019 (Сư³æ´«Ã½, du 11/09/2019 au 14/12/2019).
Gran, Marino. Semi-abelian categories and non-additive torsion theories.. A CATEGORICAL DAY IN TURIN (University of Turin, 25/02/2019).
Gran, Marino. Split extension classifiers in the category of cocommutative Hopf algebras. Category Theory International Conference (University of Edinburgh, du 08/07/2019 au 13/07/2019).
Gran, Marino. New interactions between categorical algebra and Hopf algebra theory. CatAlg2018 (Gargnano, organized by the Università degli Studi di Milano, du 29/05/2018 au 01/06/2018).
Gran, Marino. A characterization of central extensions in the variety of quandles. International Category Theory Conference 2017 (University of British Columbia, Vancouver, Canada, du 16/07/2017 au 22/07/2017).
Gran, Marino. Beck-Chevalley condition and Goursat categories. 99th Peripatetic Seminar on Sheaves and Logic (Institute of Theoretical Computer Science, TU Braunschweig , 12/03/2016).
Gran, Marino. Star-regularity and regular completions. AMS-EMS-SMP International Meeting 2015 (University of Porto , du 10/06/2015 au 13/06/2015).
Gran, Marino. On the factorisation systems associated with non-abelian torsion theories . South African Mathematical Society Conference (SAMS 2014) (University of South African (Johannesburg), du 29/10/2014 au 31/10/2014).
Gran, Marino ; Lack, Stephen. Semi-localizations of semi-abelian categories. International Category Theory Conference 2014 (University of Cambridge, du 30/06/2014 au 05/07/2014).
Gran, Marino. Monotone-light factorisation systems and torsion theories. Colloque international "In Memory of Aurelio Carboni" (Università degli Studi di Milano, du 24/06/2013 au 26/06/2013).
Gran, Marino. Some remarks on 2-star-permutability and descent in regular categories. "1st Workshop on Categorical Methods in Non-Abelian Algebra" (Universitade de Coimbra, du 07/02/2013 au 09/02/2013).
Gran, Marino. Commutateurs pondérés dans les catégories semi-abéliennes. Colloque International "Journée en l'honneur de René Guitart" (Université Paris Diderot, du 09/11/2012 au 10/11/2012).
Gran, Marino. Weighted commutators in semi-abelian categories. 93rd Peripatetic Seminar on Sheaves and Logic (University of Cambridge, du 14/04/2012 au 15/04/2012).
Gran, Marino. A good theory of ideals in regular categories. 92nd Peripatetic Seminar on Sheaves and Logic (University of Oxford, du 23/04/2011 au 24/04/2011).
Gran, Marino. The new calculus of star-relations. "Categorical methods in non-abelian algebra" (Universidade de Coimbra, 25/10/2011).
Gran, Marino. Une bonne théorie des idéaux dans les catégories régulières. Séminaire Itinérant des Catégories (Université Paris Diderot, 12/03/2011).
Gran, Marino. A description of the fundamental group in terms of commutators and closure operators. 91st Peripatetic Seminar on Sheaves and Logic (University of Amsterdam, du 27/11/2010 au 28/11/2010).
Gran, Marino. Facettes de la modularité : catégories de Goursat et idéal-déterminées. Séminaire Itinérant de Catégories (Université Paris Diderot, 13/03/2010).
Gran, Marino. Protoadditive functors and abstract fundamental groups. "Max Kelly Seminar" (University of Cape Town, 30/12/2010).
Gran, Marino. Higher central extensions of topological semi-abelian algebras. "Category Theory International Conference 2009" (University of Cape Town, du 29/06/2009 au 04/07/2009).
Gran, Marino. On some open problems in the theory of semi-abelian categories. Workshop on Categorical Algebra (University of Stellenbosch, 07/07/2009).
Gran, Marino. Théories de torsion dérivées et foncteurs protoadditifs. Séminaire Itinérant de Catégories (Université Paris Diderot, 24/10/2009).
Gran, Marino. On closure operators, reflections and protolocalisations in Goursat categories. "Max Kelly Conference in Category Theory" (University of Cape Town, du 20/01/2008 au 27/01/2008).
Gran, Marino. On Galois structures in algebraic categories. "Category Theory International Conference 2007" (Universidade de Coimbra, du 17/06/2007 au 13/06/2007).
Gran, Marino. Central extensions for internal groupoids in Maltsev categories, prom. : Vitale, Enrico Maria ; Borceux, Francis, 1999.
Gran, Marino. Le fibré tangent unitaire à une sphère est un espace de configurations, prom. : Vitale, Enrico Maria ; Borceux, Francis, 1999.