Thomas Britz

Minimal Spectrally Arbitrary Sign Patterns

An

Higher support matroids

n\times n

Code Enumerators and Tutte Polynomials

sign pattern

Covering radii are not matroid invariants

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Extensions of the Critical Theorem

is spectrally arbitrary if given any self-conjugate spectrum there exists a matrix realization of

Wei-type duality theorems for matroids

\mathcal{A}

A MacWilliams type identity for matroids

with that spectrum. If replacing any nonzero entry of

Quasi-Uniform Codes and Their Applications

\mathcal{A}

The Higher Weight Enumerators of the Doubly-Even, Self-Dual

by zero destroys this property, then

[48, 24, 12]

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