Class information for:
Level 1: SEMI ABELIAN CATEGORY//CROSSED MODULE//BAER INVARIANT

Basic class information
ID Publications Average number
of references		 Avg. shr. active
ref. in WoS
10324 1007 18.8 32%


Bar chart of Publication_year

Last years might be incomplete

Classes in level above (level 2)


ID, lev.
above		 Publications Label for level above
651 12786 HOMOLOGY HOMOTOPY AND APPLICATIONS//DEFORMATION QUANTIZATION//JOURNAL OF HOMOTOPY AND RELATED STRUCTURES

Terms with highest relevance score


Rank Term Type of term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 SEMI ABELIAN CATEGORY Author keyword 72 93% 3% 27
2 CROSSED MODULE Author keyword 55 70% 5% 46
3 BAER INVARIANT Author keyword 48 100% 2% 17
4 SCHUR MULTIPLIER Author keyword 28 48% 4% 43
5 PAIR OF GROUPS Author keyword 23 100% 1% 10
6 COMMUTATIVITY DEGREE Author keyword 20 67% 2% 18
7 NON ABELIAN TENSOR SQUARE Author keyword 20 100% 1% 9
8 PROTOMODULAR CATEGORY Author keyword 20 100% 1% 9
9 SUBTRACTIVE CATEGORY Author keyword 20 100% 1% 9
10 INTERNAL GROUPOID Author keyword 18 89% 1% 8

Web of Science journal categories

Author Key Words


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class		 LCSH search Wikipedia search
1 SEMI ABELIAN CATEGORY 72 93% 3% 27 Search SEMI+ABELIAN+CATEGORY Search SEMI+ABELIAN+CATEGORY
2 CROSSED MODULE 55 70% 5% 46 Search CROSSED+MODULE Search CROSSED+MODULE
3 BAER INVARIANT 48 100% 2% 17 Search BAER+INVARIANT Search BAER+INVARIANT
4 SCHUR MULTIPLIER 28 48% 4% 43 Search SCHUR+MULTIPLIER Search SCHUR+MULTIPLIER
5 PAIR OF GROUPS 23 100% 1% 10 Search PAIR+OF+GROUPS Search PAIR+OF+GROUPS
6 COMMUTATIVITY DEGREE 20 67% 2% 18 Search COMMUTATIVITY+DEGREE Search COMMUTATIVITY+DEGREE
7 NON ABELIAN TENSOR SQUARE 20 100% 1% 9 Search NON+ABELIAN+TENSOR+SQUARE Search NON+ABELIAN+TENSOR+SQUARE
8 PROTOMODULAR CATEGORY 20 100% 1% 9 Search PROTOMODULAR+CATEGORY Search PROTOMODULAR+CATEGORY
9 SUBTRACTIVE CATEGORY 20 100% 1% 9 Search SUBTRACTIVE+CATEGORY Search SUBTRACTIVE+CATEGORY
10 INTERNAL GROUPOID 18 89% 1% 8 Search INTERNAL+GROUPOID Search INTERNAL+GROUPOID

Key Words Plus


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 MALCEV CATEGORIES 106 95% 4% 36
2 SEMI ABELIAN CATEGORIES 79 94% 3% 29
3 CROSSED MODULES 52 74% 4% 39
4 3X3 LEMMA 31 92% 1% 12
5 COMMUTATOR THEORY 29 88% 1% 14
6 BAER INVARIANTS 23 100% 1% 10
7 HOPF FORMULAS 20 100% 1% 9
8 ISOCLINISM CLASSES 18 89% 1% 8
9 SCHUR MULTIPLIER 13 80% 1% 8
10 FUNDAMENTAL CATEGORY 12 86% 1% 6

Journals


Rank Web of Science journal category Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 APPLIED CATEGORICAL STRUCTURES 11 12% 8% 81
2 JOURNAL OF HOMOTOPY AND RELATED STRUCTURES 7 20% 3% 32
3 THEORY AND APPLICATIONS OF CATEGORIES 5 14% 3% 33

Reviews


Title Publ. year Cit. Active
references		 % act. ref.
to same field
On the nonabelian tensor square and capability of groups of order 8q 2013 3 7 100%
SOME PROBLEMS IN NON-ABELIAN HOMOTOPICAL AND HOMOLOGICAL ALGEBRA 1990 0 41 85%
Algebraic Topology Foundations of Supersymmetry and Symmetry Breaking in Quantum Field Theory and Quantum Gravity: A Review 2009 0 82 11%
GROUP EXTENSIONS, REPRESENTATIONS AND THE SCHUR MULTIPLICATOR 1982 0 6 33%

Address terms


Rank Address term Relevance score
(tfidf)		 Class's shr.
of term's tot.
occurrences		 Shr. of publ.
in class containing
term		 Num. of
publ. in
class
1 DESENVOLVIMENTO R IDO SUSTENTADO PROD 13 80% 0.8% 8
2 RECH MATH PHYS 12 32% 3.2% 32
3 EXCELLENCE ANAL ALGEBRA STRUCT 12 37% 2.7% 27
4 VAKGROEP WISKUNDE 7 67% 0.6% 6
5 MATH PU PL 6 20% 2.5% 25
6 ANAL GEOMETRIE ALGEBRE 3 100% 0.3% 3
7 VAKGRP WISKUNDE 3 29% 0.9% 9
8 A RAZMADZE MATH 2 10% 2.2% 22
9 MATH PU PLIQUEES 2 43% 0.3% 3
10 EUIT FO TAL 1 15% 0.9% 9

Related classes at same level (level 1)


Rank Relatedness score Related classes
1 0.0000215656 AUGMENTATION IDEAL//AUGMENTATION QUOTIENT//INTEGRAL GROUP RING
2 0.0000148730 APPLIED CATEGORICAL STRUCTURES//THEORY AND APPLICATIONS OF CATEGORIES//APPROACH SPACE
3 0.0000117138 DG CATEGORIES//MODEL CATEGORY//TOPOLOGICAL HOCHSCHILD HOMOLOGY
4 0.0000095982 TWISTED K THEORY//DIFFERENTIAL CHARACTERS//DIFFERENTIAL K THEORY
5 0.0000075948 CYCLICALLY PRESENTED GROUP//EQUATIONS OVER GROUPS//FREIHEITSSATZ
6 0.0000059466 CENTRAL AUTOMORPHISM//CENTRAL AUTOMORPHISMS//COCLASS THEORY
7 0.0000051791 METACYCLIC P GROUPS//MINIMAL NON ABELIAN P GROUPS//AT GROUPS
8 0.0000045351 HOPF CYCLIC COHOMOLOGY//CYCLIC HOMOLOGY//CYCLIC COHOMOLOGY
9 0.0000040686 STRING TOPOLOGY//BATALIN VILKOVISKY ALGEBRA//CALCULUS OF FUNCTORS
10 0.0000035847 CHARACTER DEGREES//CONJUGACY CLASS SIZES//CHARACTER DEGREE