Found 52 Documents (Results 1–52)
Descent cohomology and factorizations of groups. (English) Zbl 1525.18008
Reviewer: Hirokazu Nishimura (Tsukuba)
Normality for monoid monomorphisms. (English) Zbl 1531.18003
Reviewer: Peeter Normak (Tallinn)
Aspects of the category SKB of skew braces. (English) Zbl 1521.16020
Reviewer: Marzia Mazzotta (Lecce)
Algebraic logoi. (English) Zbl 1514.18010
Reviewer: Panagis Karazeris (Pátra)
Pointed semibiproducts of monoids. (English) Zbl 1514.18014
Reviewer: Tim Van der Linden (Louvain-la-Neuve)
Some notes on crossed semimodules. (English) Zbl 1500.20007
Reviewer: Osman Mucuk (Kayseri)
On the structure of cancellative conjugation semigroups. (English) Zbl 1520.20125
Reviewer: Raúl M. Falcón (Sevilla)
MSC:
20M50
A survey of Schreier-type extensions of monoids. (English) Zbl 1514.20225
MSC:
20M50
Abstractly constructed prime spectra. (English) Zbl 1485.18007
Reviewer: Robert Dawson (Halifax)
Inverse semigroup cohomology and crossed module extensions of semilattices of groups by inverse semigroups. (English) Zbl 1511.20221
Reviewer: Mykola Khrypchenko (Florianópolis)
Complete objects in categories. (English) Zbl 1490.18012
Reviewer: Tim Van der Linden (Louvain-la-Neuve)
Intrinsic Schreier special objects. (English) Zbl 1482.18005
Reviewer: Ioan Pop (Iaşi)
Crossed squares of cocommutative Hopf algebras. (English) Zbl 1490.16079
Reviewer: Kenny De Commer (Bruxelles)
Baer sums for a natural class of monoid extensions. (English) Zbl 1483.20119
Reviewer: Ulrich Knauer (Oldenburg)
\(\lambda\)-semidirect products of inverse monoids are weakly Schreier extensions. (English) Zbl 1537.20137
Quotients of monoid extensions and their interplay with Baer sums. (English) Zbl 1466.18010
Reviewer: Peeter Normak (Tallinn)
On stability of exactness properties under the pro-completion. (English) Zbl 1452.18005
Reviewer: Hirokazu Nishimura (Tsukuba)
A characterization of weakly Schreier extensions of monoids. (English) Zbl 1456.18010
Reviewer: Peeter Normak (Tallinn)
Universal central extensions of internal crossed modules via the non-abelian tensor product. (English) Zbl 1511.18008
Reviewer: George Janelidze (Cape Town)
An intrinsic approach to the non-abelian tensor product via internal crossed squares. (English) Zbl 1467.18012
Reviewer: Marino Gran (Louvain-la-Neuve)
Cancellative conjugation semigroups and monoids. (English) Zbl 1453.20085
Reviewer: Peeter Normak (Tallinn)
On the classification of Schreier extensions of monoids with non-abelian kernel. (English) Zbl 1481.20216
On the “three subobjects lemma” and its higher-order generalisations. (English) Zbl 1471.18011
Reviewer: Timothy Porter (Llandegfan)
Extracting a \(\Sigma \)-Mal’tsev \((\Sigma \)-protomodular) structure from a Mal’tsev (protomodular) subcategory. (English) Zbl 1452.18002
A comonadic interpretation of Baues-Ellis homology of crossed modules. (English) Zbl 1475.18015
Reviewer: James Gray (Cape Town)
Mobi algebra as an abstraction to the unit interval and its comparison to rings. (English) Zbl 1439.08004
Reviewer: Alexander Ivanovich Budkin (Barnaul)
The Nine Lemma and the push forward construction for special Schreier extensions of monoids with operations. (English) Zbl 1467.20097
Two characterisations of groups amongst monoids. (English) Zbl 1386.18033
Reviewer: Nadia Mazza (Lancaster)
Normalized bicategories internal to groups and more general Mal’tsev categories. (English) Zbl 1425.18001
A new characterisation of groups amongst monoids. (English) Zbl 1386.18032
Reviewer: Nadia Mazza (Lancaster)
On the “Smith is Huq” condition in \(S\)-protomodular categories. (English) Zbl 1360.18013
Reviewer: Nadia Mazza (Lancaster)
Crossed modules and Whitehead sequences. (English) Zbl 1360.18002
Reviewer: Nadia Mazza (Lancaster)
Extension theory and the calculus of butterflies. (English) Zbl 1342.18027
Reviewer: Nadia Mazza (Lancaster)
A structural aspect of the category of quandles. (English) Zbl 1331.18004
Reviewer: David Stanovsky (Praha)
Further remarks on the “Smith is Huq” condition. (English) Zbl 1327.18016
Reviewer: Antonio R. Garzón (Granada)
A push forward construction and the comprehensive factorization for internal crossed modules. (English) Zbl 1305.18066
Schreier split epimorphisms between monoids. (English) Zbl 1306.20067
Reviewer: Jaak Henno (Tallinn)
Semidirect products and crossed modules in monoids with operations. (English) Zbl 1277.18016
Reviewer: Timothy Porter (Bangor)
A note on the “Smith is Huq” condition. (English) Zbl 1255.18008
Reviewer: Antonio R. Garzón (Granada)
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