Research Output per year

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

Cohomological Dimension
Mathematics

Compactum
Mathematics

Metric space
Mathematics

Dimension Theory
Mathematics

Locally Connected
Mathematics

Theorem
Mathematics

Curve
Mathematics

If and only if
Mathematics

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

## Research Output 1984 2019

- 40 Citations
- 4 h-Index
- 17 Article

## On homologically locally connected spaces

Koyama, A. & Valov, V., 2019 Jun 15, In : Topology and its Applications. 260, p. 57-69 13 p.Research output: Contribution to journal › Article

Locally Connected

Metric space

## Surfaces in products of two curves

Koyama, A., Krasinkiewicz, J. & Spiez, S., 2014 Jan 30, (Accepted/In press) In : Topology and its Applications.Research output: Contribution to journal › Article

Curve

Closed

Embeddability

Retract

Torus

## Embeddings into products and symmetric products - An algebraic approach

Koyama, A., Krasinkiewicz, J. & Spiez, S. L., 2012, In : Houston Journal of Mathematics. 38, 2, p. 611-641 31 p.Research output: Contribution to journal › Article

Symmetric Product

Algebraic Approach

Curve

Cup Product

Compactum

6
Citations
(Scopus)

## Generalized manifolds in products of curves

Koyama, A., Krasinkiewicz, J. & Spiez, S., 2011 Mar, In : Transactions of the American Mathematical Society. 363, 3, p. 1509-1532 24 p.Research output: Contribution to journal › Article

Curve

Polyhedron

Torus

Graph in graph theory

Embeddability

2
Citations
(Scopus)

## Continuous linear extension of functions

Koyama, A., Stasyuk, I., Tymchatyn, E. D. & Zagorodnyuk, A., 2010 Nov, In : Proceedings of the American Mathematical Society. 138, 11, p. 4149-4155 7 p.Research output: Contribution to journal › Article

Continuous Extension

Linear Extension

Configuration Space

Regular Operator

Extension Operator