algebraic curves Definition and 11 Threads

  1. V9999

    Book recommendations about singular points of algebraic curves

    I'm not quite sure if this is an appropriate question in this forum, but here is the situation. I have just finished my graduate studies. Now, I want to explore algebraic geometry. Precisely, I am interested in the following topics: Singular points of algebraic curves; General methods employed...
  2. B

    I Questions about algebraic curves and homogeneous polynomial equations

    It is generally well-known that a plane algebraic curve is a curve in ##\mathcal{CP}^{2}## given by a homogeneous polynomial equation ##f(x,y)= \sum^{N}_{i+j=0}a_{i\,j}x^{i}y^{j}=0##, where ##i## and ##j## are nonnegative integers and not all coefficients ##a_{ij}## are zero~[1]. In addition, if...
  3. A

    I Finding intersection of two algebraic curves

    Given two algebraic curves: ##f_1(z,w)=a_0(z)+a_1(z)w+\cdots+a_n(z)w^n=0## ##f_2(z,w)=b_0(z)+b_1(z)w+\cdots+b_k(z)w^k=0## Is there a general, numeric approach to finding where the first curve ##w_1(z)## intersects the second curve ##w_2(z)##? I know for low degree like quadratic or cubics...
  4. bigfooted

    Geometry Is Walker's Textbook the Best Resource for Algebraic Curves?

    I recently became interested in algebraic curves, specifically topics like parametrization and its links to differential equations. I read a number of papers but I'm looking for a good (introduction) textbook on (planar) algebraic curves that gives a solid background, not pure theoretical but...
  5. Math Amateur

    MHB Real Algebraic Curves: Solving Example 1.4 from C.G. Gibson's Book

    I am reading C. G. Gibson's book: Elementary Geometry of Algebraic Curves. I need some help with aspects of Example 1.4 The relevant text from Gibson's book is as follows: Question 1In the above text, Gibson writes the following: " ... ... Then a brief calculation verifies that any point $$p...
  6. Math Amateur

    MHB Affine Algebraic Curves - Kunz - Definition 1.1

    I am reading Ernst Kunz book, "Introduction to Plane Algebraic Curves" I need help with some aspects of Kunz' Definition 1.1. The relevant text from Kunz' book is as follows:In the above text, Kunz writes the following: " ... ... If $$K_0 \subset K$$ is a subring and $$\Gamma = \mathscr{V}...
  7. Math Amateur

    Affine Algebraic Curves - Kunz - Exercise 1 - Chapter 1

    I am reading Ernst Kunz book, "Introduction to Plane Algebraic Curves" I need help with Exercise 1, Chapter 1 ... Indeed ... I am a bit overwhelmed by this problem .. Exercise 1 reads as follows: Hope someone can help ... ...To give a feel for the context and notation I am providing the...
  8. Math Amateur

    MHB Plane algebraic curves - basic definition of affine plane

    I am reading the book, "Introduction to Plane Algebraic Curves" by Ernst Kunz - which the author claims gives a basic introduction to the elements of algebraic geometry. The opening few paragraph of Kunz' text reads as follows:I am puzzled by Kunz statement: "$$ \mathbb{A} (K) := K^2 $$...
  9. micromass

    Geometry Algebraic Curves and Riemann Surfaces by Miranda

    Author: Rick Miranda Title: Algebraic Curves and Riemann Surfaces Amazon Link: https://www.amazon.com/dp/0821802682/?tag=pfamazon01-20 Prerequisities: Complex Analysis, Differential Geometry, Abstract Algebra Level: Grad Table of Contents: Preface Riemann Surfaces: Basic Definitions...
  10. T

    Intersection of Algebraic Curves P & Q at p - Proof

    Hi I am pretty stuck on a proof so any help would be great: Let P and Q be two projective curves, and let p belong to both of them. Show that the intersection number of P and Q at p is equal to one iff the tangent lines to p of P and Q are distinct NB-we have defined intersection numbers...
  11. F

    Algebraic Curves ( on understanding this proof)

    I don't get why G=0 is a contradiction. Does it imply F=0, which cannot be true since the question stated F is non constant? Can anyone give me another proof for this first part please? As the step he made to get G would have been something I would never have thought of. By the way problem 1.4...
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