Research Output per year

## Fingerprint Dive into the research topics where Hirofumi Sasahira is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

- 4 Similar Profiles

Instantons
Mathematics

Four-manifolds
Mathematics

Connected Sum
Mathematics

Seiberg-Witten Invariants
Mathematics

Floer Homology
Mathematics

4-manifold
Mathematics

Betti numbers
Mathematics

Invariant
Mathematics

##
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.

## Research Output 2008 2018

- 9 Citations
- 2 h-Index
- 6 Article

### Unfolded Seiberg–Witten Floer spectra, I: Definition and invariance

Khandhawit, T., Lin, J. & Sasahira, H., Apr 5 2018, In : Geometry and Topology. 22, 4, p. 2027-2114 88 p.Research output: Contribution to journal › Article

Invariance

Homology

Closed

Generalise

Invariant

1
Citation
(Scopus)

### Stable cohomotopy Seiberg-Witten invariants of connected sums of four-manifolds with positive first Betti number II: Applications

Ishida, M. & Sasahira, H., Jan 1 2017, In : Communications in Analysis and Geometry. 25, 2, p. 373-393 21 p.Research output: Contribution to journal › Article

Seiberg-Witten Invariants

Four-manifolds

Connected Sum

4-manifold

Betti numbers

2
Citations
(Scopus)

### Stable cohomotopy Seiberg-Witten invariants of connected sums of four-manifolds with positive first Betti number, I: Non-vanishing theorem

Ishida, M. & Sasahira, H., Jun 16 2015, In : International Journal of Mathematics. 26, 6, 1541004.Research output: Contribution to journal › Article

Seiberg-Witten Invariants

Four-manifolds

Connected Sum

Betti numbers

Refinement

### Floer homology for 2-torsion instanton invariants

Sasahira, H., Oct 29 2013, In : Asian Journal of Mathematics. 17, 3, p. 471-524 54 p.Research output: Contribution to journal › Article

Gluing

Floer Homology

Instantons

Torsional stress

Torsion

3
Citations
(Scopus)

### Instanton Floer homology for lens spaces

Sasahira, H., Jan 1 2013, In : Mathematische Zeitschrift. 273, 1-2, p. 237-281 45 p.Research output: Contribution to journal › Article

Floer Homology

Lens Space

Instantons

Homology

Four-manifolds