Explore a selection of works produced by faculty in the Department of Mathematical Sciences at Michigan Technological University.

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Submissions from 1999

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Perfect codes and balanced generalized weighing matrices☆, Dieter Jungnickel and Vladimir Tonchev

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Perfect Codes and Balanced Generalized Weighing Matrices☆, Dieter Jungnickel and Vladimir Tonchev

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Linear perfect codes and a characterization of the classical designs, Vladimir Tonchev

Submissions from 1998

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Quasi‐symmetric 2‐(28, 12, 11) designs with an automorphism of order 7, Yuan Ding, Sheridan Houghten, Clement Lam, Suzan Smith, Larry Thiel, and Vladimir Tonchev

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Characterizing the Hermitian and Ree unitals on 28 points, Gary McGuire, Vladimir Tonchev, and Harold Ward

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Maximum disjoint bases and constant-weight codes, Vladimir Tonchev

Submissions from 1997

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Embedding partial geometries in Steiner designs, Andries Brouwer, Willem Haemers, and Vladimir Tonchev

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Computational results for the known biplanes of order 9, J. D. Key and Vladimir Tonchev

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Binary codes derived from the Hoffman-Singleton and Higman-Sims graphs, Vladimir Tonchev

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Steiner triple systems of order 15 and their codes, Vladimir Tonchev and Robert Weishaar

Submissions from 1996

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On the binary codes of Steiner triple systems, Alphonse Baartmans, Ivan Landjev, and Vladimir Tonchev

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Spreads in strongly regular graphs, Willem Haemers and Vladimir Tonchev

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Classification of affine resolvable 2-(27, 9, 4) designs, Clement Lam and Vladimir Tonchev

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Classification of affine resolvable 2-(27, 9, 4) designs, Clement Lam and Vladimir Tonchev

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A class of Steiner 4‐wise balanced designs derived from preparata codes, Vladimir Tonchev

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The uniformly packed binary [27,21,3] and [35,29,3] codes☆, Vladimir Tonchev

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The existence of certain extremal [54,27,10] self-dual codes, Vladimir Tonchev and V. Y. Yorgov

Submissions from 1995

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Singly-even self-dual codes and Hadamard matrices, Masaaki Harada and Vladimir Tonchev

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The existence of extremal self-dual [50,25,10] codes and quasi-symmetric 2-(49,9,6) designs, W. Cary Huffman and Vladimir Tonchev

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On quasi-symmetric 2-(28,12,11) and 2-(36,16,12) designs, Clement Lam, Larry Thiel, and Vladimir Tonchev

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Linear codes and doubly transitive symmetric designs, Christopher Parker and Vladimir Tonchev

Submissions from 1994

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The preparata codes and a class of 4‐designs, Alphonse Baartmans, Iliya Bluskov, and Vladimir Tonchev

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Designs with the symmetric difference property on 64 points and their groups, Christopher Parker, Edward Spence, and Vladimir Tonchev

Submissions from 1993

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On the extendability of steiner t‐designs, Alphonse Baartmans, Ian Blake, and Vladimir Tonchev

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A design and a code invariant under the simple group Co3, Willem Haemers, Christopher Parker, Vera Pless, and Vladimir Tonchev

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A symmetric 2‐(160, 54, 18) design, Edward Spence, Vladimir Tonchev, and Tran van Trung

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Quasi-symmetric designs, codes, quadrics, and hyperplane sections, Vladimir Tonchev

Submissions from 1992

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Concerning multiplier automorphisms of cyclic Steiner triple systems, Charles Colbourn, Eric Mendelsohn, Cheryl Praeger, and Vladimir Tonchev

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Extremal self-dual codes from symmetric designs, Edward Spence and Vladimir Tonchev

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Some small non-embeddable designs, Vladimir Tonchev

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On Kirkman triple systems of order 33, Vladimir Tonchev and Scott Vanstone