Mary Ellen Rudin
Ọdịdị
Mary Ellen Rudin
Mary Ellen Rudin(née Estill, Disemba 7, 1924 - Machị 18, 2013) bụ onye mgbakọ na mwepụ America, ọkachamara na topology set-theoretic. Ọ bụ ihe kwesịrị ịrịba ama maka, n'etiti ihe ndị ọzọ, mbụ owuwu nke oghere Dowker na ihe akaebe mbụ nke echiche Nikiel.
Ihe Ndi Okwuru
[dezie]- Echiche Souslin na-ada ka ọ dị mfe. Onye ọ bụla ghọtara ihe enwere ike ịgụta ọnụ na enweghị ike ịgụta ihe nwere ike "rụ ọrụ" na ya. N'ezie ọ dị aghụghọ. Enwere ụkpụrụ ọkọlọtọ nke onye na-ewuli elu. Enwere njehie ọkọlọtọ na ikpe mmadụ na-eme. Na e nwere ọkọlọtọ na-abụghị nnọọ-counter-atụ-atụ nke ihe fọrọ nke nta ka onye ọ bụla na-ele nsogbu na-eme. S. Tennenbaum na ndị ọzọ egosila na ọ dabara na axioms nke Zermelo-Fraenkel set theory na echiche Souslin bụ eziokwu ma ọ bụ ụgha.
- {{citejournal|doi=10.1080/00029890.1969.12000425|title=Souslin's Conjecture|year=1969|journal=The American Mathematical Monthly|olu=76| mbipụta=10|peeji=1113}1119}
- Geometric topology bụ n'ezie isiokwu topological ọhụrụ kachasị na 1950 na topology dị iche na 1960. Algebraic topology ewereghị oche azụ na mmepe abụọ ahụ. Ma otu ihe mere n'afọ ndị 1960 nke nwere mmetụta dị ukwuu n'akụkụ topology anyị na-eche banyere ya.
... Paul Cohen gosipụtara na ọ dabara na axioms ndị a na-emebu maka set theory na continuum hypothesis. be false.
N'onwe ya a theorem nwere ole na ole pụta na topology n'ihi na e nwere nnọọ obere onye nwere ike ime na-abụghị-CH naanị. Mana usoro ihe akaebe, nke a na-akpọ mmanye, nwere ntụgharị n'ime okwu algebra nke Boolean, n'ime usoro n'usoro n'usoro, n'ime okwu ndị na-eduga n'okwu nchikota dị ịrịba ama bụ nke dabara na nsogbu dị iche iche nke topological metụtara oghere nkịtị.
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Njiko Mpuga
[dezie]