Research Output per year

## Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

Large Cardinals
Mathematics

Lindelöf Space
Mathematics

Stationary Set
Mathematics

Subset
Mathematics

Reflection Principle
Mathematics

Weak Compactness
Mathematics

Partition
Mathematics

Cardinality
Mathematics

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## Research Output 2007 2019

- 35 Citations
- 3 h-Index
- 23 Article

## Products of Lindelöf spaces with points G_{δ}

Usuba, T., 2019 Feb 1, In : Topology and its Applications. 252, p. 90-96 7 p.Research output: Contribution to journal › Article

Lindelöf Space

Strictly

## Extendible cardinals and the mantle

Usuba, T., 2018 Apr 18, (Accepted/In press) In : Archive for Mathematical Logic. p. 1-5 5 p.Research output: Contribution to journal › Article

Intersection

Model

## New combinatorial principle on singular cardinals and normal ideals

Usuba, T., 2018 Jan 1, (Accepted/In press) In : Mathematical Logic Quarterly.Research output: Contribution to journal › Article

Saturation

Intersection

## On the existence of skinny stationary subsets

Matsubara, Y., Sakai, H. & Usuba, T., 2018 Jan 1, (Accepted/In press) In : Annals of Pure and Applied Logic.Research output: Contribution to journal › Article

Stationary Set

Large Cardinals

Subset

Strombus or kite or diamond

## Large regular Lindelöf spaces with points Gδ

Usuba, T., 2017, In : Fundamenta Mathematicae. 237, 3, p. 249-260 12 p.Research output: Contribution to journal › Article

Lindelöf Space

Pseudocharacter

Large Cardinals

P-space

Forcing