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Showing 1 to 2 of 2 for “"Positive Definite Forms"”.
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The Structure of the Class Group of Imaginary Quadratic Fields
… and the equivalence classes of binary quadratic forms to find the structure of the class group. We determine the structure by combining two of Shanks' algorithms [7, 8]. We utilize this method to find fields with cyclic factors that have order a large power of 2, or fields with class groups of …
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A Spectral Element Method for Viscoelastic Fluid Flow
… saddle point problem into two symmetric positive definite forms for the velocity and pressure, then a preconditioned conjugate gradient iteration is developed to solve the system of equations. The appropriate approximation spaces for the velocity and pressure are discussed. The numerical …