On the cardinality of the set of solutions to congruence equation associated with cubic form

Let x = (x1, x2,..., xn) be a vector in the space ℚn with ℚ field of rational numbers and q be a positive integer, f a polynomial in x with coefficient in ℚ. The exponential sum associated with f is defined as S (f;q)=∑xmodq e 2πif(x)/q, where the sum is taken over a complete set of residues modulo...

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Main Authors: Aminudin, S. S., Sapar, Siti Hasana, Mohd Atan, Kamel Ariffin
Format: Article
Published: Pushpa Publishing House 2014
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author Aminudin, S. S.
Sapar, Siti Hasana
Mohd Atan, Kamel Ariffin
author_facet Aminudin, S. S.
Sapar, Siti Hasana
Mohd Atan, Kamel Ariffin
author_sort Aminudin, S. S.
collection UPM
description Let x = (x1, x2,..., xn) be a vector in the space ℚn with ℚ field of rational numbers and q be a positive integer, f a polynomial in x with coefficient in ℚ. The exponential sum associated with f is defined as S (f;q)=∑xmodq e 2πif(x)/q, where the sum is taken over a complete set of residues modulo q. The value of S(f; q) depends on the estimate of cardinality |V|, the number of elements contained in the set V= {x mod q |f x≡0mod q}, where fx f is the partial derivative of f with respect to x. In this paper, we will discuss the cardinality of the set of solutions to congruence equation associated with a complete cubic by using Newton polyhedron technique. The polynomial is of the form f(x,y)= ax3 + bx2y + cxy2 + dy3 + 3/2ax2 + bxy + 1/2cy2 + sx + ty + k.
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spelling upm.eprints-347342016-01-18T06:23:35Z http://psasir.upm.edu.my/id/eprint/34734/ On the cardinality of the set of solutions to congruence equation associated with cubic form Aminudin, S. S. Sapar, Siti Hasana Mohd Atan, Kamel Ariffin Let x = (x1, x2,..., xn) be a vector in the space ℚn with ℚ field of rational numbers and q be a positive integer, f a polynomial in x with coefficient in ℚ. The exponential sum associated with f is defined as S (f;q)=∑xmodq e 2πif(x)/q, where the sum is taken over a complete set of residues modulo q. The value of S(f; q) depends on the estimate of cardinality |V|, the number of elements contained in the set V= {x mod q |f x≡0mod q}, where fx f is the partial derivative of f with respect to x. In this paper, we will discuss the cardinality of the set of solutions to congruence equation associated with a complete cubic by using Newton polyhedron technique. The polynomial is of the form f(x,y)= ax3 + bx2y + cxy2 + dy3 + 3/2ax2 + bxy + 1/2cy2 + sx + ty + k. Pushpa Publishing House 2014-05 Article PeerReviewed Aminudin, S. S. and Sapar, Siti Hasana and Mohd Atan, Kamel Ariffin (2014) On the cardinality of the set of solutions to congruence equation associated with cubic form. JP Journal of Algebra, Number Theory and Applications, 33 (1). pp. 1-23. ISSN 0972-5555 http://www.pphmj.com/article.php?act=art_abstract_show&art_id=8473&flag=prev
spellingShingle Aminudin, S. S.
Sapar, Siti Hasana
Mohd Atan, Kamel Ariffin
On the cardinality of the set of solutions to congruence equation associated with cubic form
title On the cardinality of the set of solutions to congruence equation associated with cubic form
title_full On the cardinality of the set of solutions to congruence equation associated with cubic form
title_fullStr On the cardinality of the set of solutions to congruence equation associated with cubic form
title_full_unstemmed On the cardinality of the set of solutions to congruence equation associated with cubic form
title_short On the cardinality of the set of solutions to congruence equation associated with cubic form
title_sort on the cardinality of the set of solutions to congruence equation associated with cubic form
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