papers2012.htm

Vita

Darel W. Hardy

Papers

  1. A note on a paper of Srinivasan, Math. Ann. 186 (1970), 34--35 (with M. Brown and R. Painter)

  2. New proof of a basic theorem about the modular group, Publ. Math. Debrecen 18 (1971), 109--110 (with R. Wisner)

  3. An embedding theorem for weakly inverse semigroups, Semigroup Forum 2 (1971), 332--335 (with M. Brown and R. Painter)

  4. A dominance semigroup of the modular group, Publ. Math. Debrecen 19 (1972), 145--149, (with R. Wisner)

  5. Cardinalities of D-classes in B n , Semigroup Forum 4 (1972), 341--344 (with R. Brandon, K. Butler, and G. Markowsky)

  6. The Schützenberger group of an H -class of the semigroup of binary relations, Semigroup Forum 5 (1972), 43--45 (with R. Brandon and G. Markowsky)

  7. Semilattices of proper inverse semigroups, Semigroup Forum 13 (1976), 20--36 (with Y. Tirasupa)

  8. The maximal regular ideal of the semigroup of binary relations, Czech. Math. J. 31 (1981), 194--198 (with F. Pastijn)

  9. Partial orders, closed relations, and their automorphisms, Semigroup Forum 22 (1981), 125--138 (with M. Thornton)

  10. Partial orders and their semigroup of closed relations, Semigroup Forum 25 (1982), 171--184 (with M. Thornton)

  11. The intersection of the maximal regular subsemigroups of the semigroup of binary relations, Semigroup Forum 29 (1984), 343--349 (with M. Thornton)

  12. Semigroup rings which are separable algebras, Proceedings Ring Theory Antwerp 1985, Lecture Notes in Mathematics #1197 (1986), 51--59, Spring Verlag (with F. DeMeyer)

  13. The semigroup of binary relations and quasi regularity, Semigroup Forum 59 (1999), 8--17 (with R. Brandon)

  14. Binary relations as lattice isomorphisms, Annali di Matematica pura ed Applicata 177 (1999), 195--224 (with M. Petrich)

  15. College algebra reform: Documenting student attitudes and performance, Promoting Excellence in Teacher Preparation, Rocky Mountain teacher Education Collaborative (1999) (with K. Chappell)

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