Research Output per year

## Personal profile

### Education/Academic qualification

PHD, University of California-Berkeley

… → 1985

BS, Stanford University

… → 1976

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

- 2 Similar Profiles

C*-algebra
Mathematics

Algebra
Engineering & Materials Science

Cuntz-Krieger Algebra
Mathematics

Directed Graph
Mathematics

K-theory
Mathematics

Cuntz Algebra
Mathematics

Graph in graph theory
Mathematics

Toeplitz Algebra
Mathematics

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

## Research Output 1988 2017

- 218 Citations
- 9 h-Index
- 16 Article

## C^{⁎}-algebras associated to graphs of groups

Brownlowe, N., Mundey, A., Pask, D., Spielberg, J. & Thomas, A., Aug 20 2017, In : Advances in Mathematics. 316, p. 114-186 73 p.Research output: Contribution to journal › Article

Graph of Groups

C*-algebra

Simple C*-algebras

Algebra

Crossed Product

## Groupoids and C^{∗}-algebras for categories of paths

Spielberg, J., 2014, In : Transactions of the American Mathematical Society. 366, 11, p. 5771-5819 49 p.Research output: Contribution to journal › Article

Groupoids

Algebra

C*-algebra

Cuntz-Krieger Algebra

Nuclearity

13
Citations
(Scopus)

## C*-algebras for categories of paths associated to the Baumslag-Solitar groups

Spielberg, J., Dec 2012, In : Journal of the London Mathematical Society. 86, 3, p. 728-754 27 p.Research output: Contribution to journal › Article

C*-algebra

Toeplitz Algebra

Cuntz Algebra

Path

Crossed Product

## K-theory of C^{*}-algebras of directed graphs

Ephrem, M. & Spielberg, J., 2011, In : Houston Journal of Mathematics. 37, 2, p. 435-447 13 p.Research output: Contribution to journal › Article

K-theory

Directed Graph

C*-algebra

Graph in graph theory

Graph C*-algebra

9
Citations
(Scopus)

## Semiprojectivity for certain purely infinite C^{*}-algebras

Spielberg, J., Jun 2009, In : Transactions of the American Mathematical Society. 361, 6, p. 2805-2830 26 p.Research output: Contribution to journal › Article

Algebra

C*-algebra

Infinite Graphs

Torsion-free

K-theory

## Projects 1997 2013

- 3 Finished

## Collaborative Research: Operator theoryoperator algebras GPOTS 2011-2012

Quigg, J., Spielberg, J. & Kaliszewski, S.

National Science Foundation (NSF)

1/15/11 → 12/31/13

Project: Research project

## The Design of Research Based Curriculum for Real Analysis

National Science Foundation (NSF)

7/15/09 → 6/30/13

Project: Research project

## THE FOUNDATION COALITION (YEAR 5)

National Science Foundation (NSF)

10/1/97 → 9/30/98

Project: Research project