Loop characters
Commentationes Mathematicae Universitatis Carolinae (2000)
- Volume: 41, Issue: 2, page 271-281
- ISSN: 0010-2628
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topJohnson, Kenneth Walter. "Loop characters." Commentationes Mathematicae Universitatis Carolinae 41.2 (2000): 271-281. <http://eudml.org/doc/248642>.
@article{Johnson2000,
abstract = {A survey of the basic results of loop characters is given on the lines of the treatment of the author and J.D.H. Smith for characters of quasigroups, including some recent deveploments. One of the successes of the theory has been its suggestive influence on the theory of association schemes, group representations and the theory of the group determinant, and selected results arising are described. A section is devoted to an explanation of how the tool of loop characters has not yet been as startlingly successful as that of the early theory of group characters. This may be because in the loop case more is needed than characters and some suggestions are put forward in this direction.},
author = {Johnson, Kenneth Walter},
journal = {Commentationes Mathematicae Universitatis Carolinae},
keywords = {loop; character; association scheme; loop characters; character tables; association schemes; finite quasigroups; survey},
language = {eng},
number = {2},
pages = {271-281},
publisher = {Charles University in Prague, Faculty of Mathematics and Physics},
title = {Loop characters},
url = {http://eudml.org/doc/248642},
volume = {41},
year = {2000},
}
TY - JOUR
AU - Johnson, Kenneth Walter
TI - Loop characters
JO - Commentationes Mathematicae Universitatis Carolinae
PY - 2000
PB - Charles University in Prague, Faculty of Mathematics and Physics
VL - 41
IS - 2
SP - 271
EP - 281
AB - A survey of the basic results of loop characters is given on the lines of the treatment of the author and J.D.H. Smith for characters of quasigroups, including some recent deveploments. One of the successes of the theory has been its suggestive influence on the theory of association schemes, group representations and the theory of the group determinant, and selected results arising are described. A section is devoted to an explanation of how the tool of loop characters has not yet been as startlingly successful as that of the early theory of group characters. This may be because in the loop case more is needed than characters and some suggestions are put forward in this direction.
LA - eng
KW - loop; character; association scheme; loop characters; character tables; association schemes; finite quasigroups; survey
UR - http://eudml.org/doc/248642
ER -
References
top- Bannai E., Ito T., Algebraic Combinatorics I., Benjamin-Cummings Lecture Notes Series No. 58, Menlo Park, California, 1994. Zbl0685.05030MR0882540
- Bannai E., Song S., The character tables of Paige’s simple Moufang loops and their relationship to the character tables of PSL, Proc. London Math. Soc. (3) 58 (1989), 209-236. (1989) Zbl0682.20050MR0977475
- Bannai E., Kawanaka N., Song S., The character table of the Hecke algebra , J. Algebra 129 (1990), 320-366. (1990) MR1040942
- Bannai E., Hao S., Song S., Character tables of the association schemes of finite orthogonal groups acting on the nonisotropic points, J. Combin. Theory Ser. A 54 (1990), 164-200. (1990) Zbl0762.20005MR1059994
- Brauer R., Representations of finite groups, in Lectures in Modern Mathematics, Vol. 1, T.L. Saaty (ed.), Wiley, 1963, pp.133-175. Zbl0333.20008MR0178056
- Cameron P.J., Kiyota M., Sharp characters of finite groups, J. Algebra 115 (1988), 125-143. (1988) Zbl0651.20010MR0937604
- Godsil C.D., Algebraic Combinatorics, Chapman & Hall, New York, 1993. Zbl0814.05075MR1220704
- Formanek E., Sibley D., The group determinant determines the group, Proc. Amer. Math. Soc 112 (1991), 649-656. (1991) Zbl0742.20008MR1062831
- Frobenius G., Über Gruppencharaktere, Sitzungsber. Preuss. Akad. Wiss. Berlin (1896), 985-1021. (Gesammelte Abhandlungen, (Springer-Verlag 1968), pp.1-37).
- Johnson K.W., Latin square determinants, in Algebraic, Extremal and Metric Combinatorics 1986, London Math. Soc. Lecture Notes 131, 1988, pp.146-154. Zbl0761.05019MR1052664
- Johnson K.W., Some historical aspects of the development of group representation theory and its extension to quasigroups, Universal Algebra and Quasigroup Theory, A. Romanowska, J.D.H. Smith (eds.) Heldermann Verlag, Berlin, 1992, pp.101-117. MR1191229
- Johnson K.W., Latin square determinants II., Discrete Math. 105 (1992), 111-130. (1992) Zbl0761.05019MR1180197
- Johnson K.W., Sharp characters of quasigroups, European J. Combin. 14 (1993), 103-112. (1993) Zbl0773.20030MR1206615
- Johnson K.W., The Dedekind-Frobenius group determinant, new life in an old method, Proceedings of the Groups 97 Conference, Bath, England 1997; London Math. Soc. Lecture Notes 261, 1999, pp.417-428. MR1676638
- Johnson K.W., Ford D., Determinants of latin squares of order , Experimental Math. 5 (1996), 317-325. (1996) Zbl0876.05017MR1437221
- Johnson K.W., Mattarei S., Sehgal S.K., Weak Cayley tables, to appear in J. London Math. Soc. Zbl0962.20003
- Johnson K.W., Poimenidou E., Generalised classes in groups and association schemes, duals of results on characters and sharpness, European J. Combin. 20 (1999), 1-6. (1999) Zbl0916.05075MR1669612
- Johnson K.W., Smith J.D.H., Characters of finite quasigroups, European J. Combin. 5 (1984), 43-50. (1984) Zbl0537.20042MR0746044
- Johnson K.W., Smith J.D.H., Characters of finite quasigroups II: induced characters, European J. Combin. 7 (1986), 131-138. (1986) Zbl0599.20110MR0856325
- Johnson K.W., Smith J.D.H., Characters of finite quasigroups III, Quotients and fusion, European J. Combin. 10 (1989), 47-56. (1989) Zbl0667.20053MR0977179
- Johnson K.W., Smith J.D.H., Characters of finite quasigroups IV: products and superschemes, European J. Combin. 10 (1989), 257-263. (1989) Zbl0669.20053MR1029172
- Johnson K.W., Smith J.D.H., Characters of finite quasigroups V: linear characters, European J. Combin. 10 (1989), 449-456. (1989) Zbl0679.20059MR1014553
- Johnson K.W., Smith J.D.H., A note on the induction of characters in association schemes, European J. Combin. 7 (1986), 139-140. (1986) MR0856326
- Johnson K.W., Song S-Y., Smith J.D.H., Characters of finite quasigroups VI: critical examples, European J. Combin. 11 (1990), 267-275. (1990) Zbl0704.20056MR1059557
- Mackey G.W., Harmonic analysis as an exploitation of symmetry - a historical survey, Bull. Amer. Math. Soc. 3 (1980), 543-698. (1980) MR0571370
- Smith J.D.H., Combinatorial characters of quasigroups, in Coding Theory and Design Theory, Part I: Coding Theory, (D. Ray-Chaudhuri, ed.) Springer, New York, 1990. Zbl0708.20021MR1047879
- Smith J.D.H., Quasigroup actions: Markov chains, pseudoinverses, and linear transformations, to appear in South-East Asian Bulletin of Mathematics.
- Smith J.D.H., Quasigroup representation theory. Universal Algebra and Quasigroup Theory, A. Romanowska, J.D.H. Smith (eds.), Heldermann, Berlin, 1992, pp.195-207. MR1191234
- Song S-Y., Fusion relations in products of association schemes, preprint. MR1939083
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