On the form of functions which preserve regressive isols
Compositio Mathematica, Volume 26 (1973) no. 3, p. 283-302
@article{CM_1973__26_3_283_0,
author = {Ellentuck, Erik},
title = {On the form of functions which preserve regressive isols},
journal = {Compositio Mathematica},
publisher = {Noordhoff International Publishing},
volume = {26},
number = {3},
year = {1973},
pages = {283-302},
zbl = {0272.02067},
mrnumber = {344102},
language = {en},
url = {http://www.numdam.org/item/CM_1973__26_3_283_0}
}

Ellentuck, Erik. On the form of functions which preserve regressive isols. Compositio Mathematica, Volume 26 (1973) no. 3, pp. 283-302. http://www.numdam.org/item/CM_1973__26_3_283_0/

J. Barback [1] Recursive functions and regressive isols, Math. Scand. 15 (1964), 29-42. | MR 176921 | Zbl 0148.24701

J.C.E. Dekker [2] Infinite series of isols, Amer. Math. Soc. Proc. Symposia Pure Math. 5 (1962), 77-96. | MR 142447 | Zbl 0171.27001

J.C.E. Dekker [3] The minimum of two regressive isols, Math. Zeit. 83 (1964), 345-366. | MR 160716 | Zbl 0122.01002

J.C.E. Dekker and J. Myhill [4] Retraceable sets, Canad. J. Math. 10 (1958), 357-373. | MR 99292 | Zbl 0082.01505

E. Ellentuck [5] Universal cosimple isols, 42 (1972), 629-638 Pacif. J. Math. | MR 314606 | Zbl 0254.02032

M.J. Hassett [6] A closure property of regressive isols, Rocky Mt. J. Math. 2 (1972), 1-24. | MR 292678 | Zbl 0238.02036

A. Nerode [7] Extensions of isols, Ann. of Math. 73 (1961), 362-403. | MR 131363 | Zbl 0101.01203