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Stratton Hall, 201C
Phone: +1-508-831-5069
Fax: +1-508-831-5824

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Joseph D. Fehribach

Professor Fehribach has taught and led mathematical research efforts at WPI since 1992. If you are interested in his work, please contact him directly. His research works with Kirchhoff graphs, representing that the null and row spaces of a matrix are orthogonal complements. When the matrix is the stoichiometric matrix for a chemical reaction network, the Kirchhoff graph is effectively a circuit diagram for that reaction network.

Research Interests

  • Porous Electrodes
  • Kirchhoff Graphs
  • Applied Differential Equations
  • Scientific Computing


  • BA, Centre College, 1980
  • MA, Duke University, 1982
  • PhD, Duke University, 1985

Featured Publications

  • Vector-space methods and Kirchhoff graphs for reaction networks, SIAM J. of Applied Mathematics 70 (2009) 543-562.
  • Triple phase boundaries in solid-oxide cathodes (with R. O'Hayre), SIAM J. of Applied Mathematics 70 (2009) 510-530.
  • Matrices and their Kirchhoff graphs, submitted for publication.
  • Poisson-Boltzmann model of space charge layer effects on conductivity in randomly distributed nanoionic composites (with J. S. Fish, C. P. Li, C. A. Wolden, R. O’Hayre, A. L. Bunge, and C. E. Goodyer), in preparation.

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