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following conditions: (C0) B is the core of A and strongly connected; (C1) B is the core of A and strongly trap-connected, or B is a trap-extension of the core of A and the core is strongly connected; ... A trap-extension of an algebra is obtained by adjoining to it a trap, that is to say, A is a trap-extension of B if it is an extension of B by a two-element discrete algebra. ...doi:10.1007/s10587-007-0098-9 fatcat:vdzvpior7vehzouudah4et7rvy
(FIN-TURK; Turku) Traps, cores, extensions and subdirect decompositions of unary algebras. (English summary) Fund. Inform. 38 (1999), no. 1-2, 51-60. ... Summary: “Subdirect decompositions of unary algebras are stud- ied in connection with one-element subalgebras, cores, Rees exten- sions of congruences of subalgebras, dense extensions and disjunc- tive ...
., (2000)j:68007) Slapal, Josef see Bednarik, Frantisek, 2000f:08008 08A60 Unary algebras Bogdanovié, Stojan (with Cirié, Miroslav; Petkovié, Tatjana; Imreh, Balazs; Steinby, Magnus) Traps, cores, extensions ... and subdirect decompositions of unary algebras. _ (English summary) 2000g:08008 Cirié, Miroslav see Bogdanovic¢, Stojan et al., 2000g:08008 HaluSkova, Emilia Direct limits of monounary algebras. 2000m ...
real functions, 607 semigroup automata, 832 the class of recursively-enumerable languages, 428 URE, 695 subcomputation, 2130 subdirect decomposition, 1847 irreducibility, 1847 product of subdirectly ... 3368 shift-equivalence of polynomials, 3400 simpleness of algebras, 7 12 strong isomorphism, 1771 subdirect irreducibility, 1847 testing the necklace condition, 1250 optimality of alphabetic trees ...doi:10.1016/s0304-3975(98)00319-3 fatcat:s22ud3iiqjht7lfbtc3zctk7zm
Erdös and Sós, 4925 Erdös and Szekeres, 4879 Erdös et al., 5529, 5888 Erdös Rubin Taylor, 3815 Erdös Sós Turán, 506 Everett, 2901 Faigle and Sands, 2122 Faudree et al., 4399 Faudree Gould Jacobson ... Slater, 5299 Hertz and de Werra, 3748 Hibi, 4839 Hoàng, 3748, 4811 Holton, 1660 Holyer and Cockayne, 1118 Howorka, 2636 ... a digraph, 1677 subdirecly irreducible, 3146 subdirect decomposition theorem, 1797 irreducibility, 659 subdirect product, 2134 construction, 2134 subdirect representation theory, 1170 subdirectly irreducible ...doi:10.1016/s0012-365x(00)00471-4 fatcat:znxg54q6ifgutnhzj3urcw455y
(Summary) 2000i:68133 68Q70 (03D05) — (with Bogdanovié, Stojan; Cirié, Miroslav; Imreh, Balazs; Steinby, Magnus) Traps, cores, extensions and subdirect decompositions of unary algebras. ... An extension of the character ring of sI(3) and its quantisation. (English summary) Comm. Math. Phys. 202 (1999), no. 3, 701-733. (Mark A. ...
08B15 Lattices of varieties 08B20 Free algebras 08B25 Products, amalgamated products, and other kinds of limits and colimits [See also 18A30] 08B26 Subdirect products and subdirect irreducibility 08B30 ... , 68R15] 08A55 Partial algebras 08A60 Unary algebras 08A62 Finitary algebras 08A65 Infinitary algebras 08A68 Heterogeneous algebras 08A70 Applications of universal algebra in computer science 08A72 Fuzzy ... equations (general structure, canonical formalism, Cauchy problems) 83C10 Equations of motion 83C15 Exact solutions 83C20 Classes of solutions; algebraically special solutions, metrics with symmetries ...doi:10.2307/2322281 fatcat:yvhgyh2epbcwdoqdhuaopkcrue
We acknowledge support from the Strategic Basic Research (SBO) Programme of the Flemish Agency for Innovation through Science and Technology (IWT) in the context of the SPION project 6 under grant agreement ... A sheaf representation of a universal algebra A over a topological space Y can be viewed as a special subdirect product decomposition of A indexed by Y . ... approach via canonical extensions of LG-algebras provides the possibility of a modular treatment of various extensions of the Lambek-Grishin calculus. ...fatcat:yg5vvzymuvcibirco4nawxes4m