Skip to main content

Fritz Rothberger

Description
Fritz Rothberger (1902-2000) was a pioneer in the mathematical field known as "combinatorial set theory". Rothberger became a professor at Acadia University in 1943, where he worked until 1949 when he transferred to University of New Brunswick at Fredericton. Before retiring in 1970, he also worked at Laval and the University of Windsor. After retirement he returned to Acadia University and continued to teach mathematics until 1981.

These personal papers of Fritz Rothberger include correspondence, working notes, drafts of papers, and a photograph. Article off prints have not been digitized.
Displaying 1 - 15 of 24

Results per page

Displaying 1 - 15 of 24

Fritz Rothberger

Dates Covered: Unknown year in the century of the 1900s, 1945 to 1967
Collection: Fritz Rothberger, Archival Catalogue
Type: archival description

Letter from Lord Beveridge

Image
Date Created: June, 1958
Collection: Fritz Rothberger
Description: Lord Beveridge writes to Rothberger requesting for information on the experience Rothberger had with the Society for the Protection of Science and Learning. Letter head reads SOCIETY FOR THE PROTECTION OF SCIENCE AND LEARNING c/o Society for Visiting Scientists, 5, Old Burlington Street, London, W. 1.
Accession Number: 2011.007-RTH/001
Creator: Beveridge, Lord
Type: textual record

Letter from P. Erdos

Image
Date Created: 1945 (year approximate)
Collection: Fritz Rothberger
Description: Letter to Fritz Rothberger from P. Erdos written [December 31, 1945]. Erdos thanks Rothberger for the Christmas card and mentions the fate of some other European mathematicians in the Holocaust. He then proceeds to talk about Math with Rothberger. He includes his address and asks Rothberger to write more.
Accession Number: 2011.007-RTH/001
Creator: Erdos, Paul, 1913-1996
Type: textual record

Letter from P. Erdos

Image
Date Created: 1946
Collection: Fritz Rothberger
Description: Letter from Erdos to Rothberger sent in October of 1946. Erdos tells Rothberger that he should publish his conditions as they are since they cannot be proven false. He tells Rothberger of a paper he is writing that after rewritten he will send to him. He notes that his address will change for the next few months. Written on Harvard Mathematical Club Paper.
Accession Number: 2011.007-RTH/001
Creator: Erdos, Paul, 1913-1996
Type: textual record

Letter from Rothberger

Image
Date Created: one of the dates: January 13, 1947 or some later date
Collection: Fritz Rothberger
Description: Letter from Rothberger stating he had found a note from [M.Henri Egrand] about his theorems in "Les Comptes Rendus de L'Acad[ies]" more
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter from W. Sierpinski

Image
Date Created: 1947
Collection: Fritz Rothberger
Description: Letter to Fritz Rothberger from W. Sierpinksi, written on January 20, 1947. Sierpinski tells Rothberger that they will publish his work in the 34th edition of Fundamenta Mathematicae. He also corrects the wording of Rothberger's Theorem. Letterhead reads FUNDAMENTA MATHEMATICAE SEMINARIUM MATEMATYCZNE UNIWESYTERU,WARSAWA, UL. HOZA 69. more
Accession Number: 2011.007-RTH/001
Creator: Sierpinski, Waclaw, 1882-1969
Type: textual record

Letter to Erdos

Image
Date Created: 1946
Collection: Fritz Rothberger
Description: Letter from Rothberger to Erdos thanking him for his Post Card in April. He asks Erdos if he has had time to go through the manuscripts he sent him. He tells Erdos that he has sent a manuscript to the Annals and has received it back . He is including another Theorem for Erdos and asks for a proof of the theorem Erdos sent him last year.
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Erdos

Image
Date Created: Unknown year in the century of the 1900s
Collection: Fritz Rothberger
Description: A letter from Rothberger to Erdos thanking him for writing to him earlier about the European Mathematicians. Rothberger attached two manuscript and goes into detail on what is important in these manuscripts.
Accession Number: 2011.007-RTH/004
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Father Faught

Image
Date Created: 1967
Collection: Fritz Rothberger
Description: Letter from Rothberger to Father Faught regarding the paper and mark of Joe Bardswich.
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Fundamenta Mathematicae

Image
Date Created: 1946
Collection: Fritz Rothberger
Description: Letter to Fundamenta Mathematicae regarding a manuscript that Rothberger would like to publish in their journal. He asks about Payment Methods for receiving the journals.
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Fundamenta Mathematicae

Image
Date Created: 1947
Collection: Fritz Rothberger
Description: Rothberger writes to Fundamenta Mathematicae talking about the manuscript he has sent them. He goes into detail of all that should be included in the package. He says thank you for the Journal he has received and tell them he has sent money in the mail. Includes NOTES FOR THE PRINTER.
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Lambek

Image
Date Created: 1960
Collection: Fritz Rothberger
Description: Definition of a covering space over a space X with all conditions that should be satisfied to use the definition. It is hand written by Rothberger in both pencil and pen.
Accession Number: 2011.007-RTH/004
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Letter to Sierpinski

Image
Date Created: 1946
Collection: Fritz Rothberger
Description: Letter to W. Sierpinski thanking him for the seperatum. He tells Sierpinski that his theorem is quite interesting. He includes two memories that he has published in the last few years. He tells him that he sent his theorem to the Annals but if they want it for Fundamenta he will send it to him as well. He also tells him another theorem he has written. He tells Sierpinksi about Acadia and his… more
Accession Number: 2011.007-RTH/002
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Mathematical Proof, "A remark on the existence of a denumerable base for a family of dyadic functions"

Image
Date Created: Unknown year in the century of the 1900s
Collection: Fritz Rothberger
Description: Rothberger references his earlier paper and continues to prove his theorem true.
Accession Number: 2011.007-RTH/004
Creator: Rothberger, Fritz, 1902-2000
Type: textual record

Mathematical Proof, "Let F be a family of dyadic functions"

Image
Date Created: 1946
Collection: Fritz Rothberger
Description: The proof of his theorem: Let F be a family of dyadic functions on a set X. This document includes two drafts of his theorem. The first being rough with marks in Red and Green on it. And the second having only green lines on it. Possibly a working draft of "A remark on the existence of a denumerable base for a family of dyadic functions." Included in 2011.007-RTH/4. A Remark on the… more
Accession Number: 2011.007-RTH/004
Creator: Rothberger, Fritz, 1902-2000
Type: textual record