Semi-abelian forms

Conference talk
Z. Janelidze and A. Goswami
2nd Workshop on Mathematical Structures, Stellenbosch (South Africa) 2015
Publication year: 2015

On the theory of radical theories

Conference talkInvited talk
Z. Janelidze and L. Márki
3rd Workshop on Categorical Algebra, Gargnano (Italy) 2015
Publication year: 2015

On a symmetric proof of the non-abelian snake lemma

Conference talk
Z. Janelidze
Category Theory 2015, Aveiro (Portugal) 2015
Publication year: 2015

Modularity implies restricted permutability

Conference talk
Z. Janelidze and D. Rodelo
Congress of the South African Mathematical Society, Johannesburg (South Africa) 2015
Publication year: 2015

Groups and duality

Conference talk
Z. Janelidze
Congress of the Georgian Mathematical Society, Batumi (Georgia) 2015
Publication year: 2015

Formal radical theories

Conference talkInvited talk
Z. Janelidze and L. Márki
International Conference on Radicals, Rings, Near-rings and other algebraic structures, Abbey Vorau (Austria) 2015
Publication year: 2015

A self-dual axiomatic context for homomorphism theorems

Conference talk
Z. Janelidze
Topology, Analysis, Algebra and Geometry, North-West University (South Africa) 2015
Publication year: 2015

Subobject chasing revisited

Conference talk
Z. Janelidze
Category Theory 2014, University of Cambridge (UK) 2014
Publication year: 2014

Projective structured categories

Conference talk
Z. Janelidze
Congress of South African Mathematical Society, Johannesburg (South Africa) 2014
Publication year: 2014

Introduction to formal closure operators

Conference talk
Z. Janelidze
Seminar dedicated to the 60th birthday of C. Gilmour, Cape Town (South Africa) 2014
Publication year: 2014

Towards geometric universal algebra via topological functors

Conference talk
Z. Janelidze
South African Category Theory Day 2, University of Cape Town (South Africa), 2013
Publication year: 2013

Towards a systematic study of methods for generalizing results from the context of varieties of universal algebra to the context of abstract categories

Conference talkInvited talk
Z. Janelidze
1st Workshop on Categorical Methods in Non-Abelian Algebra, Coimbra (Portugal), 2013
Publication year: 2013

Homological Algebra via Bifibrations

Conference talk
Z. Janelidze (joint work with T. Van der Linden)
Séminaire Itinérant de Catégories, Louvain-la-Neuve (Belgium), 24 May 2013
Publication year: 2013

Cover relations on categories: old and new examples

Conference talk
Z. Janelidze
South African Category Theory Day 1, Stellenbosch University (South Africa), 2013
Publication year: 2013

Bifibrational duality for groups and in general categories

Conference talkInvited talk
Z. Janelidze
Category Theory 2013, Sydney (Australia), July 2013
Publication year: 2013

A new Mal'tsev condition which holds for rings, does not hold for groups, and implies permutability of congruences

Conference talk
Z. Janelidze
56th Congress of South African Mathematical Society, Pietermaritzburg (South Africa), 2013
Publication year: 2013

Subtraction and subtractivity

Conference talk
Z. Janelidze
55th Annual Congress of South African Mathematical Society (South Africa), 2012
Publication year: 2012

Formal duality in semi-abelian categories

Conference talk
Z. Janelidze
Workshop on Category Theory in honor of George Janelidze, on the occasion of his 60'th birthday, Coimbra (Portugal), 2012
Publication year: 2012

On the $3\times 3$ lemma

Conference talkInvited talk
Diana Rodelo (joint work with M. Gran and Z. Janelidze)
2nd Workshop on Categorical Algebra: Recent developments and future perspectives, Gargnano (Italy), 2011
Publication year: 2011

Fibred algebraic theories

Conference talkInvited talk
Z. Janelidze
2nd Workshop on Categorical Algebra: Recent developments and future perspectives, Gargnano (Italy), 2011
Publication year: 2011

Une bonne théorie des idéaux dans les catégories régulières

Conference talk
M. Gran (joint work with Z. Janelidze and A. Ursini)
Séminaire Itinérant de Catégories, Paris (France), 2010
Publication year: 2010

The derived closure-interior operator pair

Conference talk
Z. Janelidze
(Mini-) Conference in Universal Algebra and its connections with Category Theory, Logic, Lattice Theory and Topology, Stellenbosch University (South Africa), 9 March 2010
Publication year: 2010

The architecture of ideal determined categories

Conference talk
Z. Janelidze
Séminaire Itinérant de Catégories, Calais (France), 5 November 2010
Publication year: 2010

Subtractivity up to a class of morphisms

Conference talk
Z. Janelidze (joint work with D. Bourn)
Seminar in Category Theory, Stellenbosch University (South Africa), 4 February 2010
Publication year: 2010

Categorical terms for congruence-modularity

Conference talk
Z. Janelidze
Special session on Universal Algebra, American Mathematical Society Sectional Meeting, 10-11 April St Paul (USA), 2010
Publication year: 2010

Categorical algebra via difference terms

Conference talk
Z. Janelidze (joint work with D. Bourn)
(Mini-) Conference in Universal Algebra and its connections with Category Theory, Logic, Lattice Theory and Topology, Stellenbosch University (South Africa), 9 March 2010
Publication year: 2010

Algebraic importance of "modus ponens"

Conference talk
Z. Janelidze (joint work with D. Bourn)
Logic and Algebra Day, Stellenbosch University (South Africa), 2 October 2010
Publication year: 2010

Algebraic aspects of categories with finite colimits

Conference talk
Z. Janelidze (joint work with D. Bourn)
Séminaire Itinérant de Catégories, Amiens (France), 5 June 2010
Publication year: 2010

Une alternative à un théorème de plongement pour les catégories protomodulaires

Conference talk
D. Bourn (joint work with Z. Janelidze)
Séminaire Itinérant de Catégories, Paris (France), 2009
Publication year: 2009

The pointed subobject functor and subtractive spans

Conference talk
Z. Janelidze
International Workshop in Categorical Algebra, Stellenbosch University (South Africa), 2009
Publication year: 2009

D. Bourn’s homological lemmas in normal categories

Conference talk
Z. Janelidze
89th Peripatetic Seminar on Sheaves and Logic, Louvain-la-Neuve (Belgium), 2009
Publication year: 2009

The codiagonal extended category structure of a protomodular category with finite coproducts

Conference talkInvited talk
Z. Janelidze (joint work with D. Bourn)
Categories in Algebra, Geometry and Logic (A tribute to the work of Francis Borceux and Dominique Bourn on the occasion of their sixtieth birthday), Royal Flemish Academy of Belgium for Sciences and the Arts, Brussels (Belgium), 2008
Publication year: 2008

Subtractivity in Categorical Algebra

Conference talk
Z. Janelidze
Category Theory 2008, Calais (France), 2008
Publication year: 2008

Extended subtraction and protomodularity

Conference talk
D. Bourn (joint work with Z. Janelidze)
Max Kelly Conference in Category Theory, Cape Town (South Africa), 2008
Publication year: 2008

Closedness properties of internal relations and approximate operations

Conference talk
Z. Janelidze
Max Kelly Conference in Category Theory, Cape Town (South Africa), 2008
Publication year: 2008

Cover relations on categories

Conference talk
Z. Janelidze
Category Theory 2007, Algavre (Portugal), 2007
Publication year: 2007

Categorical term conditions

Conference talk
Z. Janelidze (joint work with D. Bourn)
Summer School on Contemporary Categorical Methods in Algebra and Topology, Haute-Bodeux (Belgium), 2007
Publication year: 2007

Categorical criteria for solvability of systems of linear equations in rings and more generally in algebraic theories

Conference talk
Z. Janelidze
International Conference on Homology Theories, K-Theory and Homotopy Theory, Tbilisi (Georgia), 2007
Publication year: 2007

Approximate operations in categorical algebra

Conference talk
Z. Janelidze (joint work with D. Bourn)
50th Annual Congress of South African Mathematical Society, Cape Town (South Africa), 2007
Publication year: 2007

Characterizations of additive categories via subtractivity

Conference talk
Z. Janelidze
49th Annual Congress of South African Mathematical Society, Bloemfontain (South Africa), 2006
Publication year: 2006

Elementary term conditions on varieties of universal algebras

Conference talk
Z. Janelidze
Congress of Georgian Mathematicians, Tbilisi (Georgia), 2005
Publication year: 2005

New Bourn localization theorems

Conference talk
Z. Janelidze
Algebraic Models of Topological Spaces and Fibrations (Dedicated to the 90th anniversary of George Chogoshvili), Tbilisi (Georgia), 2004
Publication year: 2004

Generalized difunctionality, Pixley categories, and a general Bourn localization theorem

Conference talk
Z. Janelidze
67th Workshop on General Algebra and 19th Conference for Young Algebraists, Potsdam (Germany), 2004
Publication year: 2004

Subtractivity and normal projections

Conference talk
Z. Janelidze
European Category Theory Meeting, Haute-Bodeux (Belgium), 2003
Publication year: 2003

Normal projections in Universal Algebra

Conference talk
Z. Janelidze
International Conference on Algebraic and Topological Methods in Non-Classical Logics, Tbilisi (Georgia), 2003
Publication year: 2003