• [1] R. M. Dudley, Continuity of homomorphisms, Duke Math. J. 28 (1961), 587–594. MR 0136676 (25 #141)
• [2] M. I. Graev, Free topological groups, Izvestiya Akad. Nauk SSSR. Ser. Mat. 12 (1948), 279–324 (Russian). MR 0025474 (10,11d)
• [3] E. Hewitt and K. A. Ross, Abstract harmonic analysis, Academic Press, New York, 1963.
• [4] Karl Heinrich Hofmann, Zerfällung topologischer Gruppen, Math. Z. 84 (1964), 16–37 (German). MR 0165030 (29 #2321)
• [5] A. Markov, O svobodnyh topologičeskih gruppah, Izv. Akad. Nauk SSSR Ser. Mat. 9 (1945), 3-64; English transl., Translation No. 30, Amer. Math. Soc., Providence, R. I., 1950, 11-88; reprint, Amer. Math. Soc. Transl. (1) 8 (1962), 195-273.

Bibliography

[1]

R. Dudley, Continuity of homomorphisms, Duke Math. J. 28 (1961), 587-594. MR 0136676 (25:141)

[2]

M. Graev, Svobodnye topologičeskie gruppy, Izv. Akad. Nauk SSSR Ser. Mat. 12 (1948), 279-324; English transl., Translation No. 35, Amer. Math. Soc., Providence, R. I., 1951, 1-61; reprint, Amer. Math. Soc. Transl. (1) 8 (1962), 305-364. MR 0025474 (10:11d)

[3]

E. Hewitt and K. A. Ross, Abstract harmonic analysis, Academic Press, New York, 1963.

[4]

K. Hofmann, Zerfallung topologischer Gruppen, Math. Z. 84 (1964), 16-37. MR 0165030 (29:2321)

[5]

A. Markov, O svobodnyh topologičeskih gruppah, Izv. Akad. Nauk SSSR Ser. Mat. 9 (1945), 3-64; English transl., Translation No. 30, Amer. Math. Soc., Providence, R. I., 1950, 11-88; reprint, Amer. Math. Soc. Transl. (1) 8 (1962), 195-273.