Co.Al.A.R.
Computational Algebraic Analysis Results
 

Additions to our papers, further calculations, further discussion of results


Last updated on  May 2007


for any question on this site or any of the CoAlA webpages, please contact alberto [at] tlc185.com

1) QUATERNIONIC MEGAFORMS and HYPERFUNCTIONS [CDSS2]:  Updated May 2007
 
 You can download here the PDF file of the appendix to our paper Quaternionic hyperfunctions on 5-dimensional varieties on H2 [CDSS2]. It contains some further calculations describing the syzygies for the Cauchy-Fueter operator in two quaternionic variables which we cut from the latest version of our paper for the sake of brevity.
 
 
2) DIRAC OPERATOR [SSSVL]: 
 
 Our latest calculation of the Betti numbers for the resolution associated to 3 and 4 operators
 
 
 
3) NOETHERIAN OPERATORS [DSS]:
 
 Some experiments performed using our algorithms, includes CPU times
 
 
 
4) BIREGULAR FUNCTIONS [DSS1]:
 
Graded Betti numbers for the resolution associated to 2n operators

 
5) RARITA SCHWINGER OPERATOR in real dimension three
 
 Betti numbers, Clebsch-Gordan coefficients, and some computation for other two invariant operators related to the R.-S.
 
 
REFERENCES: (click on [XXX] to follow the MathSciNet link or the link to a preprint if available)

[SSSVL]
  I. Sabadini, F. Sommen, D.C. Struppa, D.C. and P. Van Lancker. Complexes of Dirac operators in Clifford algebras, Math. Zeit., 239 no.2, 293-320, 2002

[DSS]
A. Damiano, I. Sabadini, D. Struppa,  Computational Methods for the Construction of a Class of Noetherian Operators, Submitted 2005

[DSS1]
A. Damiano, I. Sabadini, D. Struppa,  New algebraic properties of biregular functions in 2n quaternionic variables, Complex Variables, 206
 

[CDSS2] F. Colombo, A. Damiano, I. Sabadini, D.C. Struppa, Quaternionic hyperfunctions on 5-dimensional varieties in H2 , To appear on J. Geom. An.