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

Stationary Set
Mathematics

Reflection Principle
Mathematics

Lindelöf Space
Mathematics

Weak Compactness
Mathematics

Partition
Mathematics

Subset
Mathematics

Cardinality
Mathematics

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## Research Output 2007 2018

- 33 Citations
- 3 h-Index
- 21 Article

## 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

## 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

1
Citations

## The downward directed grounds hypothesis and very large cardinals

Usuba, T., 2017, (Accepted/In press) In : Journal of Mathematical Logic.Research output: Contribution to journal › Article

Large Cardinals

Forcing

Geology

1
Citations

## Reflection principles for uω_{2}and the semi-stationary reflection principle

Usuba, T., 2016, In : Journal of the Mathematical Society of Japan. 68, 3, p. 1081-1098 18 p.Research output: Contribution to journal › Article

Reflection Principle

Model