Przemysław Koprowski

Witt equivalence of rings of regular functions - to be submitted
Closed-form test for intersections of parametric cubics - under review
Algebraic Approach to Geometric Characterization of Parametric Cubics J. for Geometry and Graphics, Vol. 11, No. 2 (2007), pp. 173-178
Splitting natural injection of Witt rings of geometric rings Int. J. Pure Appl. Math., Vol. 45, No. 1 (2008), pp. 5-11
Algorithms for quadratic forms - J. Symb. Comp. 43 (2008) pp. 140–152

Graded quaternion symbol equivalence of function fields - Czechoslovak Math. J. Vol. 57, No. 4 (2007), pp. 1311-1319
Matching local Witt invariants - Acta Mathematica Universitatis Ostraviensis 13 (2005), pp. 29-34
On existence of tame Harrison map - Math. Slovaca 57 (2007), No. 5, 407–414, DOI: 10.2478/s12175-007-0036-1
On splitting Knebusch-Milnor exact sequence - J. Algebra, 301 (2006) 616-626
Integral equivalence of real algebraic function fields - Tatra Mt. Math. Publ. 32 (2005), pp. 53-61
Polynomials with prescribed cycle lengths - Acta Sci. Math. (Szeged), 72 (2006), no. 1-2, pp. 51-58
Local-global principle for Witt equivalence of function fields over global fields Colloq. Math., 91 (2002), pp. 293-302
Witt equivalence of algebraic function fields over real closed fields Math. Z., 242 (2002), pp. 323-345
Sums of squares of pure quaternions, Math. Proc. Irish Royal Acad., 98A (1998), pp. 63-65