Links to papers, books, and workshop notes are given below.



Articles
  1. (with H. Andreka, J.X. Madarasz, I. Nemeti, and T. Sayed Ahmed) Epimorphisms in Cylindric Algebras and Definability in Finite Variable Logic. Algebra Universalis, 61 (2009), 261-282

  2. Immersive Imaging Technology: VR for the Web in Academia Syllabus 13, no. 1 (1999), 22-26.

  3. Application-oriented hyperstructers New Frontiers in Hyperstructures Hadronic Press (1996), 213-218. MR 1460523

  4. Hyperstructures associated with character algebras and color schemes New Frontiers in Hyperstructures Hadronic Press (1996), 49-66. MR 1460510

  5. Locating Internet Resources Proceedings of Seventh Conference on Technology in Collegiate Mathematics, Addison-Wesley (1995) 88-92.

  6. Perfect extensions of Regular Stone Algebras Algebra Universalis 34 (1995), 96-109.MR 1344956

  7. Finite Mathematics on the HP-95LX Proceedings of Fifth Conference on Technology in Collegiate Mathematics, Addison-Wesley (1994), 121-125.

  8. On connections between information systems, rough sets and algebraic logic Algebraic Methods in Logic and Computer Science. Banach Center Pub., vol. 28, Polich Acad. Sci., Warsaw (1993), 117-124. MR 1446277

  9. Lattices of conjugacy relations Proc. International Conference on Algebra honoring A. Malcev Contempory Math. 131 (Part3), Amer. Math. Soc. 1992, 31-48. MR 1175871

  10. An algebraic approach to the approximation of information Fundamenta Informaticae 14 (1991), 492-502. MR 1124536

  11. Some problems on hypergroups Algebraic Hyperstructures and Applications, Proc. Fourth Internat. Congress, Xanthi, 1990. World Scientific Pub., 1991, 67-74. MR 1125316

  12. A remark on representable positive cylindric algebras Algebra Universalis 28 (1991), 150-151. MR 1083828

  13. The representation of 3-dimensional cylindric algebras Algebraic Logic (Proc. Conf. Budapest 1988), North-Holland Pub. Co., 1991, 147-172. MR 1153422

  14. The use of spreadsheets in Finite Mathematics Proceedings of Conference on Technology in Collegiate Mathematics Addison-Wesley, 1989, 129-132.

  15. Weakly regular trees and their color algebras Rivista di Mat. pura ed appl. 3 (July 1988), 29-37. MR 1068875

  16. (with Leslie Cohn) An abstract theory of invertible relations Algebra Universalis 25 (1988), 131-146. MR 0950741

  17. Dimension Stable Posets Commentationes Mathematicae Universitatis Carolinae 28 (1987), 127-135. MR 0889774

  18. The Cayley representation of polygroups Convegno su: Ipergruppi, altre strutture multivoche e loro applicazioni, Udine 1986, 27-34 MR 0923143

  19. (with H. Andreka and I. Nemeti) Clones of operations on relations Universal Algebra and Lattice Theory Proc. Conf. In Charleston, 1984, (Springer-Verlag. NY), LNM #1149 (1985), 17-21 MR 0823003

  20. The elementary theory of interval real numbers Zeitschr. f. Math. Logik u. Grund. d. math. 31 (1985), 89-95. MR 0781533

  21. Combinatorial types Algebra, Combinatorics and Logic in Computer Science, Colloquia Math Soc. J. Bolyai, North-Holland Pub. Co., 1985, 267-284 MR 0875870

  22. Epimorphisms in discriminator varieties Proc. Colloquium on Universal Algebra (Szeged, 1983), Horth-Holland Pub. Co., 1985, 41-48 MR 0860254

  23. Galois theory for cylindric algebras and its applications Trans. Amer. Math. Soc. 286 (1984), 771-785. MR 0760986

  24. Combinatorial aspects of relations Algebra Universalis 18 (1984), 77-94. MR 0743458

  25. Polygroups derived from cogroups J. Algebra 89 (1984), 397-405. MR 0751152

  26. Color schemes forbidding monochrome triangles Congressus Numerantium 39 (1983), 231-236. MR 0734546

  27. Constructions of color schemes Acta Universitatis Carolinae (Math. et Phys.) 24 (1983), 39-48. MR 0733684

  28. Extension of polygroups by polygroups and their representations using color schemes In, Universal Algebra and Lattice Theory Proc. Conf. Puebla, Mexico, 1982, Springer-Verlag, NY (1983), LNM #1004, 91-103. MR 0716176

  29. A remark on chromatic polygroups Congressus Numerantium 38 (1983), 85-95. MR 0703243

  30. A new foundation for the theory of relations Notre Dame J. Formal Logic 24 (1983), 181-187. MR 0687341

  31. Boolean Combinations of Monadic Formulas Algebra Universalis 15 (1982), 299-305. MR 0689768

  32. Inductive domains and algebraic semantics of CF languages Computational Linguistics and Computer Languages 15 (1982), 43-49. MR 0673281

  33. The decision problem for nilpotent closed varieties Zeitschr. f. Math. Logik u. Grund. d. Math. 27 (1981), 557-560. MR 0635117

  34. Word Problems in Reader Reflections Mathematics Teacher 73 (Oct 1980), 487-488.

  35. The representation of implicative BCK-algebras Math. Japon. 25 (1980), 111-115. MR 0571270

  36. The countable chain condition and free algebras Mathematische Zeitschrift 165 (1979), 101-106. MR 0520815

  37. Multivalued loops, geometries, and algebraic logic Houston J. Math. 2 (1976), 373-380. MR 0467488

  38. Complete and model complete theories of monadic algebras Colloquium Mathematicum 34 (1976), 183-190. MR 0480008

  39. Monadic algebras with finite degree Algebra Universalis 5 (1975), 315-329. MR 0403965

  40. Elementary properties of structures of sections Bol. Soc. Mat. Mexicana 19 (1974), 78-85. MR 0437333

  41. Restricted direct products and sectional representations Math. Nachrichten 64 (1974), 333-344. MR 0369212

  42. Solution to Problem J/A5 Technology Review, January 1974, 66.

  43. Arithmetic properties of relatively free products Proc. Univ. Houston Lattice Theory Conf., Houston (1973), 180-193. MR 0401602

  44. (with J.S. Johnson) The standard semigroup of operators of a variety Algebra Universalis 2 (1972), 77-79. MR 0308012

  45. (with D.X. Hong) Some remarks concerning the varieties generated by the diamond and the pentagon Trans. Amer. Math. Soc. 174 (1972), 45-54. MR 0313142

  46. A sheaf-theoretic duality theory for cylindric algebras Trans. Amer. Math. Soc. 169 (1972), 75-87. MR 0307908

  47. Representations by algebras of sections over Boolean spaces Pacific J. Math. 38 (1971), 29-38. MR 0304277

  48. (with J.J. LeTourneau) Isomorphism types of infinite algebras Proc. Amer. Math. Soc. 21 (1969), 635-639. MR 238752

  49. Finite inseparability of some theories of cylindrification algebras J. Symbolic Logic 34 (1969), 171-176. MR 272627

  50. Classes without the amalgamation property Pacific J. Math 28 (1969), 309-318. MR 242650

Books
  1. (Editor) Universal Algebra and Lattice Theory, Proceedings of a Conference held in Charleston, July 11-14, 1984. Lecture Notes in Marthematics. No., 1149, Springer-Verlag, 1985

Workshop Notes
  1. Plane vs Spherical Geometry. Fourth Carolinas Mathematics Conference, Charlotte, NC, October 1997

  2. VR Movie Authoring in Windows. Syllabus, Chicago, IL (April 2000); Santa Clara, CA (July 2000 and July 2001)