Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Larry L. Herrington"'
Autor:
Larry L. Herrington, Paul E. Long
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 4, Iss 4, Pp 823-825 (1981)
M. K. Singal and Asha Rani Singal have defined an almost-continuous function f:X→Y to be one in which for each x∈X and each regular-open set V containing f(x), there exists an open U containing x such that f(U)⊂V. A space Y may now be defined t
Externí odkaz:
https://doaj.org/article/a1775541cade49e881760206724468bc
Autor:
Larry L. Herrington
Publikováno v:
Proceedings of the American Mathematical Society. 55:435-439
This paper gives characterizations of Urysohn-closed and minimal Urysohn spaces, some of which make use of nets.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70789b299937af4f2c206a8780e36e49
https://doi.org/10.1090/s0002-9939-1976-0415570-3
https://doi.org/10.1090/s0002-9939-1976-0415570-3
Autor:
Larry L. Herrington
Publikováno v:
Proceedings of the American Mathematical Society. 45:431-436
A general product theorem for nearly-compact spaces and locally nearly-compact spaces is given along with other relating properties.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0ccd0b80ee7593cc17a5441ddcd6ba0
https://doi.org/10.1090/s0002-9939-1974-0346748-3
https://doi.org/10.1090/s0002-9939-1974-0346748-3
Autor:
Paul E. Long, Larry L. Herrington
Publikováno v:
Proceedings of the American Mathematical Society. 52:417-426
This paper gives characterizations of C C -compact spaces, some of which make use of nets. Sufficient conditions for a space to be C C -compact are given which make use of the graphs of weakly-continuous functions and a class of spaces which contains
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d002c4710f0110e1ebdb5277153f049c
https://doi.org/10.1090/s0002-9939-1975-0388345-0
https://doi.org/10.1090/s0002-9939-1975-0388345-0
Autor:
Paul E. Long, Larry L. Herrington
Publikováno v:
Rendiconti del Circolo Matematico di Palermo. 27:20-28
A functionf∶X→Y is defined to be regular-closed if for each regular-closedA⊂X, f(A) is closed inY. Numerous theorems are presented which give properties of such functions as well as sufficient conditions for a function to be regular-closed. Com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::544a1cfbdb42eb2ec838d344c4f0dad1
https://doi.org/10.1007/bf02843863
https://doi.org/10.1007/bf02843863
Autor:
Larry L. Herrington
Publikováno v:
Proceedings of the American Mathematical Society. 55:140-144
This paper gives several characterizations of completely Hausdorff-closed spaces.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c5e9a2eb55f79a539ad470059ac67d9
https://doi.org/10.1090/s0002-9939-1976-0413045-9
https://doi.org/10.1090/s0002-9939-1976-0413045-9
Autor:
Larry L. Herrington, Paul E. Long
Publikováno v:
Rendiconti del Circolo Matematico di Palermo. 25:158-160
The graphG(f) off:X→y is defined to be *-closed if for each (x, y)∋G(f) there exist open setsU andV containingx andy, respectively, such thatU×Int (cl(V))=0. A characterization ofH-closed Urysohn spaces is obtained using functions with *-closed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62aa255f0336d133df8cdc993d06fc1b
https://doi.org/10.1007/bf02849569
https://doi.org/10.1007/bf02849569
Autor:
Larry L. Herrington, Paul E. Long
Publikováno v:
Proceedings of the American Mathematical Society. 57:373-374
This paper gives a characterization of minimal Hausdorff spaces. 1. Preliminary definitions and theorems. A net C: 6D -> X r-converges1 to x0 E X if for each open V containing x0, there exists a d E 6D such that C(Td) C cl (V) [2]. A net C: 6D -* X r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35acf46edc64001ac9a5f03c1426bbb5
https://doi.org/10.1090/s0002-9939-1976-0405355-6
https://doi.org/10.1090/s0002-9939-1976-0405355-6
Autor:
Paul E. Long, Larry L. Herrington
Publikováno v:
Proceedings of the American Mathematical Society. 57:373
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::532644795a1d0a25b5fc854ebe059051
https://doi.org/10.2307/2041227
https://doi.org/10.2307/2041227
Autor:
Larry L. Herrington, Paul E. Long
Publikováno v:
Proceedings of the American Mathematical Society. 48:469-469
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fa6665fdfd84fc535826a6b46304b02
https://doi.org/10.1090/s0002-9939-1975-0365485-3
https://doi.org/10.1090/s0002-9939-1975-0365485-3