Cayley-Bacharach theorem of piecewise algebraic curves. (English) Zbl 1070.14034

A piecewise algebraic curve is a generalization of the classical algebraic curve. The piecewise algebraic curve is not only important for the interpolation by bivariate splines but also a useful tool for studying traditional algebraic curves.
It is well known that the Cayley-Bacharach theorem is an important and classical result in algebraic geometry. This result has been successively generalized, improved and reinterpreted, and this development continues today [see for instance the paper by S.-L. Tan, J. Algebr. Geom. 9, No. 2, 201–222 (2000; Zbl 0953.14033)].
In this paper, by using Bézout’s theorem and a Noether-type theorem of piecewise algebraic curves, the Cayley-Bacharach theorem and Hilbert function of \(C^0\) piecewise algebraic curves are presented.


14H50 Plane and space curves
14F05 Sheaves, derived categories of sheaves, etc. (MSC2010)
65D07 Numerical computation using splines
13D40 Hilbert-Samuel and Hilbert-Kunz functions; Poincaré series


Zbl 0953.14033
Full Text: DOI


[1] L.H. Cui, Multivariate Lagrange interpolation and multivariate Kergin interpolation, Ph.D. Thesis, Jilin University, 2003.
[2] Eisenbud, D.; Green, M.; Harris, J., Cayley – bacharach theorems and conjectures, Bull. amer. math. soc. (N.S.), 33, 3, 295-324, (1996) · Zbl 0871.14024
[3] Hartshorn, R., Algebraic geometry, (1977), Springer New York
[4] Y.S. Lai, Some researches on piecewise algebraic curves and piecewise algebraic varieties, Ph.D. Thesis, DUT, 2002.
[5] Shi, X.Q.; Wang, R.H., Bezout’s number for piecewise algebraic curves, Bit, 2, 339-349, (1999) · Zbl 0933.65017
[6] Z.X. Su, Piecewise algebraic curves and surfaces and their applications in CAGD, Ph.D. Thesis, DUT, 1993.
[7] Tan, S.L., Cayley – bacharach properly of an variety and Fujita’s conjecture, J. algebraic geom., 9, 201-222, (2000) · Zbl 0953.14033
[8] Walker, R.J., Algebraic curves, (1950), Princeton University Press Princeton, NJ · Zbl 0039.37701
[9] Wang, R.H., The structural characterization and interpolation for multivariate splines, Acta math. sinica, 18, 91-106, (1975), (English transl.ibid. 18(1975) 10-39) · Zbl 0358.41004
[10] Wang, R.H., Multivariate spline and algebraic geometry, J. comput. appl. math., 121, 153-163, (2000) · Zbl 0960.41008
[11] Wang, R.H., Multivariate spline functions and their applications, (2001), Science Press/Kluwer Pub Beijing/New York
[12] Wang, R.H.; Lai, Y.S., Piecewise algebraic curve, J. comput. appl. math., 144, 277-289, (2002) · Zbl 1005.65021
[13] Wang, R.H.; Xu, Z.Q., The estimation of Bezout’s number for piecewise algebraic curves, Sci. China ser A, 2, 185-192, (2003)
[14] R.H. Wang, G.H. Zhao, An introduction to the piecewise algebraic curve, in: T. Mitsui (Ed.), Theory and Application of Scientific and Technical Computing, RIMS, Kyoto University, 1997, pp. 196-205. · Zbl 0942.65501
[15] R.H. Wang, C.G. Zhu, Topology of piecewise algebraic curves, Math. Numer. Sinica 4 (2003), to appear.
[16] R.H. Wang, C.G. Zhu, Nöther-type theorem of piecewise algebraic curves, Progr. Nat. Sci. 2 (2004), to appear.
[17] Z.Q. Xu, Multivariate splines, piecewise algebraic curves and linear Diophantine equations, Ph.D. Thesis, DUT, 2003.
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