José Morgado (1921-2003)
89 publicações recenseadas na revista "Zentralblatt"
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1. Morgado, José
Importance of observations in mathematics. (Portuguese)
Gaz. Mat., Lisb. 141, 24-28 (2001). MSC 2000: *00A35
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2. Morgado, José
Note on a problem posed by Fermat. (Portuguese)
Bol. Soc. Port. Mat. 36, 41-53 (1997). MSC 2000: *11D25 11-03
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3. Morgado, José
Professor Ruy Luis Gomes and the mathematical centre of Recife. (Portuguese)
Nobre, Sergio (ed.), 2nd Portuguese-Brazilian meeting on the history of
mathematics and 2nd national seminar on the history of mathematics.
Theme: Contributions of Portuguese mathematicians on the development of
mathematics in Brazil, Águas de Sao Pedro, Brazil, March 23--26, 1997.
Proceedings. Rio Claro: UNESP, Dept. de Matematica, 85-93 (1997). MSC 2000: *01A70
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4. Morgado, José
In honor of professor Ruy Luís Gomes. (Portuguese)
Bol. Soc. Port. Mat. 35, 1-24 (1996). MSC 2000: *01A70 01A60
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5. Morgado, José
A note on group endomorphisms of power type and commutativity. (Portuguese)
Bol. Soc. Port. Mat. 32, 73-80 (1995). MSC 2000: *20E36 20E34
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6. Morgado, José
Note on the Chebyshev polynomials and applications to the Fibonacci numbers. (English)
Port. Math. 52, No.3, 363-378 (1995). MSC 2000: *11B39, Recensor: Péter Kiss
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7. Morgado, José
A note on the endomorphisms of a group defined by commutators. (Portuguese)
Marques de Sá, Eduardo (ed.) et al., Mathematical studies. Homage to
Professor Doctor Luís de Albuquerque. Coimbra: Universidade de Coimbra,
Faculdade de Ciências e Tecnologia, Departamento de Matemática, 193-204 (1994). MSC 2000: *20E36
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8. Morgado, José
On the history of algebra in Portugal. I. (Portuguese)
Gaz. Mat., Lisb. 137, 3-21 (1990). MSC 2000: *01A40
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9. Morgado, José
Note on a Shannon's theorem concerning the Fibonacci numbers and diophantine quadruples. (English)
Port. Math. 48, No.4, 429-439 (1991). MSC 2000: *11B39
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10. Morgado, José
Certain diophantine equations. (English)
Bol. Soc. Port. Mat. 15, 24-35 (1990). MSC 2000: *11D09 11D25 11D41
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11. Morgado, José
Pythagorean triangles. (Portuguese)
Bol. Soc. Port. Mat. 14, 3-12 (1989). MSC 2000: *11D09 11-01
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12. Morgado, José
About a theorem of Fermat. (Portuguese)
Bol. Soc. Port. Mat. 13, 7-17 (1989). MSC 2000: *11-03
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13. Morgado, José
On a problem related to the Fibonacci numbers. (Portuguese)
Proc. 2nd Meet. Portuguese algebraists, Porto/Port. 1987, 77-88 (1987). MSC 2000: *11B37 11D04
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14. Morgado, José
Note on some results of A. F. Horadam and A. G. Shannon concerning a
Catalan's identity on Fibonacci numbers. (English)
Port. Math. 44, 243-252 (1987). MSC 2000: *11B37
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15. Morgado, José
Ruy Luis Gomes professor and companion. (Portuguese)
Bol. Soc. Port. Mat. 8, 5-30 (1985). MSC 2000: *01A70 01A60
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16. Morgado, José
Some remarks on an identity of Catalan concerning the Fibonacci numbers. (English)
Port. Math. 39 (1985), 341-348 (1980). MSC 2000: *11B37
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17. Morgado, José
Generalization of a result of Hoggatt and Bergum on Fibonacci numbers. (English)
Port. Math. 42, 441-445 (1983/84). MSC 2000: *11B37
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18. Morgado, José
A note on a property of arithmetic progressions of integers. (Portuguese)
Bol. Soc. Port. Mat. 6, 73-76 (1983). MSC 2000: *11D25 11B25
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19. Morgado, José
Note on Hilbert's axioms for the notion of "between". (Portuguese)
Bol. Soc. Port. Mat. 5, 30-36 (1982). MSC 2000: *51A05 51M05 51M10
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20. Morgado, Jose
Some remarks on two generalizations of Euler's theorem. (English)
Port. Math. 36, 153-158 (1977). MSC 2000: *11A07 11A25
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21. Morgado, Jose
A remark on groups without center. (English)
Gaz. Mat., Lisboa 36-37 (1975), 35-37 (1976). MSC 2000: *20F12 20E34 20E22
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22. Morgado, Jose
Another generalization of Euler's theorem. (English)
Port. Math. 35, 241-243 (1976). MSC 2000: *11A07
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23. Morgado, Jose
Quasi-regular normal endomorphisms of a group. (English)
Math. Stud. zu Ehren von A. Almeida Costa, 99-111 (1974). MSC 2000: *20F99
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24. Morgado, Jose
A remark on groups without center. (English)
Notas Comun. Mat., Recife 59, 7 p. (1974). MSC 2000: *20F12 20E22
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25. Morgado, Jose
A property of the Euler $\varphi$-function concerning the integers
which are regular modulo n. (English)
Port. Math. 33, 185-191 (1974). MSC 2000: *11A07 11A25
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26. Morgado, Jose
Quasi-regular normal endomorphisms of a group. (English)
Notas Comun. Mat., Recife 58, 17 p. (1974). MSC 2000: *20E36 20F99
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27. Morgado, Jose
A property of the Euler $\varhi$-function concerning the integers
which are regular modulo n. (English)
Notas Comun. Mat., Recife 54, 9 p. (1973). MSC 2000: *11A07 11A25
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28. Morgado, Jose
Note on quasi-orders, partial orders and orders. (English)
Port. Math. 32, 1-7 (1973). MSC 2000: *06A06 06A05
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29. Morgado, Jose
Regular integers modulo n. (Portuguese)
Gaz. Mat., Lisboa 33, 1-5 (1972). MSC 2000: *11A07 11A05
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30. Morgado, Jose
Eine andere notwendige und hinreichende Bedingung dafür, daß eine ganze
Zahl regulär modulo $n$ ist. (Portuguese)
Gaz. Mat., Lisboa 33, 71-72 (1972). MSC 2000: *11A07
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31. Morgado, Jose
Note on quasi-orders, partial orders and orders. (English)
Notas Comun. Mat., Recife 43, 10 p. (1972). MSC 2000: *06A05 06A06
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32. Zbl 0266.10003 Morgado, Jose
Über einen Satz von Lucas, der mit dem kleinen Fermatschen
Satz in Beziehung steht. (Portuguese)
Gaz. Mat., Lisboa 31, No.117-120, 59-61 (1970). MSC 2000: *11A07 13A15
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33. Zbl 0257.20001 Morgado, Jose
Some remarks on a definition of a group in terms of the inverse operations. (English)
Notas Comun. Mat., Recife 30, 11 p. (1970). MSC 2000: *20A10
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34. Zbl 0237.20033 Morgado, Jose
A note on the endomorphisms associated to semi-direct
decompositions of a group. (English)
Port. Math. 29, 43-48 (1970). MSC 2000: *20E36
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35. Zbl 0225.06005 Morgado, José
Some characterizations of Boolean rings. (English)
Anais Acad. Brasil. Ci. 42, 641-644 (1970). MSC 2000: *06E20
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36. Zbl 0222.20012 Morgado, José
Extension of some results of Herstein on semi-homomorphisms of groups. (English)
Math. Notae 21 (1968/69), 113-123 (1970). MSC 2000: *20E99
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37. Zbl 0215.36601 Morgado, J.
Two axiom systems for commutative rings with identity (English)
Notas Comun. Mat., Recife 25, 5 p. (1970). MSC 2000: *13A99
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38. Zbl 0324.04002 Morgado, Jose
A single axiom for equivalence relations. (English)
Gaz. Mat., Lisboa 30, No.113-116, 15-16 (1969). MSC 2000: *03E20 08A05
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39. Zbl 0267.20033 Morgado, Jose
Direkte Gruppenendomorphismen. (Portuguese)
Gaz. Mat., Lisboa 30, No.113-116, 9-14 (1969). MSC 2000: *20E36
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40. Zbl 0209.32902 Morgado, J.
Extension of some results of Herstein on semi-homomorphisms of groups (English)
Notas Comun. Mat., Recife 23, 11 p. (1969). MSC 2000: *20E99
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41. Zbl 0262.17001 Morgado, Jose
On the condition $(xy)^2=x^2y^2$ in nonassociative rings. (English)
Gaz. Mat., Lisboa 29, No.109-112, 1-2 (1968). MSC 2000: *17A30
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42. Zbl 0262.20042 Morgado, Jose
A note on the normal endomorphisms of a group. (English)
Gaz. Mat., Lisboa 29, No.109-112, 6-8 (1968). MSC 2000: *20E36
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43. Zbl 0262.20043 Morgado, Jose
A theorem on abelian quotient groups of a group. (English)
Gaz. Mat., Lisboa 29, No.109-112, 9-10 (1968). MSC 2000: *20E36
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44. Zbl 0213.29303 Morgado, J.
A theorem on extensions of commuting isotone mappings (English)
Notas Comun. Mat., Recife 15, 5 p. (1967). MSC 2000: *06B23
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45. Zbl 0208.29601 Morgado, J.
A theorem on entropic groupoids (English)
Port. Math. 26, 449-452 (1967). MSC 2000: *20N02
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46. Zbl 0206.04603 Morgado, J.
On the structure of generalized J-rings (English)
Notas Comun. Mat., Recife 17, 13 p. (1967). MSC 2000: *16R10
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47. Zbl 0286.20071 Morgado, Jose
On abelian groups with the unique square root property. (English)
Gaz. Mat., Lisboa 27, No.103-104, 5-7 (1966). MSC 2000: *20K99
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48. Zbl 0239.20071 Morgado, Jose
Entropic groupoids and abelian groups. (English)
Gaz. Mat., Lisboa 27, No.103-104, 8-10 (1966). MSC 2000: *20L05 20K99
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49. Zbl 0236.20001 Morgado, Jose
An absolutely independent axiom system for groups. (English)
Gaz. Mat., Lisboa 27, No.101-102, 8-10 (1966). MSC 2000: *20A05
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50. Zbl 0236.20002 Morgado, Jose
Another definition of a group by means of a single axiom. (English)
Gaz. Mat., Lisboa 27, No.103-104, 11-13 (1966). MSC 2000: *20A05
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51. Zbl 0235.20054 Morgado, José
Note on the definition of a group. (English)
Gaz. Mat., Lisboa 27, No.101-102, 11-12 (1966). MSC 2000: *20A05
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52. Zbl 0163.26205 Morgado, J.
Factorization of the lattice of closure operators of a complete lattice (English)
Port. Math. 25, 181-185 (1966).
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53. Zbl 0144.25404 Morgado, J.
On the lattices of residuated closure operators of complete lattices (English)
Notas Comun. Mat., Recife 12, 7 p. (1966).
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54. Zbl 0133.27103 Morgado, J.
Note on the factorization of the lattice of closure operators of
a complete lattice (English)
Nederl. Akad. Wet., Proc., Ser. A 69, 34-41 (1966).
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55. Zbl 0295.06003 Morgado, Jose
A single axiom for closure operators of partially ordered sets. (English)
Gaz. Mat., Lisboa 26, No.100, 57-58 (1965). MSC 2000: *06A15 06A06
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56. Zbl 0222.04001 Morgado, José
The mappings from ${\cal P}(A)$ into ${\cal P}(B)$. (Portuguese)
Gaz. Mat., Lisboa 26, No.98-99, 3-4 (1965). MSC 2000: *03E20
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57. Zbl 0163.01206 Morgado, J.
On the complete homomorphic images of the lattice of closure operators
of a complete lattice (English)
Notas Comun. Mat., Recife 8, 13 p. (1965).
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58. Zbl 0163.26003 Morgado, J.
Note on the system of closure operators of the ordinal product of partially
ordered sets (English)
Anais Fac. Ci. Porto 48, 13-20 (1965).
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59. Zbl 0163.26204 Morgado, J.
Ein Satz über a-vollständige Kongruenzen von a-vollständigen Verbänden (Portuguese)
Atas quarto Coloquio Brasil. Mat., Pocos de Caldas 1963, 77-80 (1965);
Notas Comun. Mat., Recife No.3, 8 p. (1965).
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60. Zbl 0158.27001 Morgado, J.
Note on the system of closure operators of the ordinal product
of partially ordered sets (English)
Port. Math. 24, 189-195 (1965); Notas Comun. Mat., Recife No.5, 8 p. (1965).
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61. Zbl 0148.25703 Morgado, J.
Erweiterung einiger Resultate von Ore über die Homomorphismen
vollständiger Verbände (Portuguese)
Notas Comun, Mat., Recife 1, 9 p. (1965).
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62. Zbl 0136.00905 Morgado, J.
A characterization of the central closure operators of complete lattices (English)
Nederl. Akad. Wet., Proc., Ser. A 68, 70-73 (1965).
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63. Zbl 0135.03103 Morgado, J.
Lattices in which $a<b\wedge c$ implies $a\le b$ or $a\le c$ (English)
Port. Math. 24, 13-19 (1965).
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64. Zbl 0135.03201 Morgado, J.
On the complete homomorphic images of the lattice of closure operators
of a complete lattice (English)
Anais Acad. Brasil. Ci. 37, 185-192 (1965).
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65. Zbl 0134.25904 Morgado, J.
A single axiom for groups (English)
Am. Math. Mon. 72, 981-982 (1965).
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66. Zbl 0146.05203 Morgado, J.
On the arithmetical function $\sigma\sp *\sb h$ (English)
Port. Math. 23, 35-40 (1964).
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67. Zbl 0136.00903 Morgado, J.
Note on the distributive closure operators of a complete lattice (English)
Port. Math. 23, 11-25 (1964).
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68. Zbl 0136.00904 Morgado, J.
Note on the central closure operators of complete lattices (English)
Nederl. Akad. Wet., Proc., Ser. A 67, 467-476 (1964).
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69. Zbl 0135.03104 Morgado, J.
Note on $\alpha$-complete congruences of $\alpha$-complete lattices (English)
Port. Math. 23, 131-138 (1964).
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70. Zbl 0166.01203 Morgado, J.
Bemerkung über subtraktive Quasigruppen (Portuguese)
Gaz. Mat., Lisboa 24, No.92/93, 11-17 (1963).
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71. Zbl 0166.01301 Morgado, J.
Definition der subtraktiven Quasigruppen durch ein einziges Axiom (Portuguese)
Gaz. Mat., Lisboa 24, No.92/93, 17-18 (1963).
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72. Zbl 0144.25405 Morgado, J.
On the lattices of residuated closure operators of complete lattices (English)
Bol. Soc. Mat. Sao Paulo 18, 31-37 (1963).
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73. Zbl 0122.05206 Morgado, J.
Some remarks on the unitary analogue of the Nagell totient function (English)
Port. Math. 22, 127-135 (1963).
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74. Zbl 0122.05301 Morgado, J.
Unitary analogue of a Schemmel's function (English)
Port. Math. 22, 215-233 (1963).
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75. Zbl 0115.01801 Morgado, J.
On the closure operators of the cardinal product of partially ordered sets (English)
Nederl. Akad. Wet., Proc., Ser. A 66, 65-75 (1963).
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76. Zbl 0111.25202 Morgado, J.
Unitary analogue of the Nagell totient function (English)
Port. Math. 21, 221-223 (1962); Correction. Ibid. 22, 119 (1963).
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77. Zbl 0113.02001 Morgado, J.
On the automorphisms of the lattice of closure operators of a complete lattice (English)
Rev. Unión Mat. Argent. 20, 188-193 (1962).
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78. Zbl 0111.02301 Morgado, J.
Einführung in die Theorie der Verbände. Band I, II (Portuguese)
(Textos de Matematica. No.10, 11.) Instituto de Fisica e Matematica,
Universidade do Recife, VIII, 1-244; 245-342 (1962).
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79. Zbl 0107.25203 Morgado, J.
A characterization of the closure operators by means of one axiom (English)
Port. Math. 21, 155-156 (1962).
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80. Zbl 0107.25301 Morgado, J.
On the closure operators of the ordinal product of partially ordered sets (English)
Port. Math. 21, 209-220 (1962).
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81. Zbl 0107.25302 Morgado, J.
Note on complemented closure operators of complete lattices (English)
Port. Math. 21, 138-142 (1962).
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82. Zbl 0107.25303 Morgado, J.
On complete congruences of complete lattices (English)
Port. Math. 21, 11-25 (1962).
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83. Zbl 0106.02201 Morgado, Jose
Sur le normalisateur d'une sous-groupe cyclique (French)
Gaz. Mat., Lisboa 23, 1-7 (1962).
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84. Zbl 0103.02002 Morgado, Jose
Note on the system of closure operators of the ordinal sum of partially ordered sets (English)
Anais Acad. Brasil. Ci. 34, 1-9 (1962).
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85. Zbl 0115.01802 Morgado, J.
On the closure operators of the ordinal sum of partially ordered sets (English)
Nederl. Akad. Wet., Proc., Ser. A 64, 546-550 (1961).
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86. Zbl 0105.25203 Morgado, Jose
Note on the automorphisms of the lattice of closure operators of a complete lattice (English)
Nederl. Akad. Wet., Proc., Ser. A 64, 211-218 (1961).
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87. Zbl 0103.02101 Morgado, Jose
Some remarks on quasi-isomorphisms between finite lattices (English)
Port. Math. 20, 137-145 (1961).
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88. Zbl 0099.02102 Morgado, José
Quasi-isomorphisms between complete lattices. (English)
Port. Math. 20, 17-31 (1961).
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89. Zbl 0103.26702 Morgado, Jose
Some results on closure operators of partially ordered sets (English)
Port. Math. 19, 101-139 (1960).
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