Pete Markou

206 reputation

	206 reputation	bio	website		visits	member for	7 months
5 badges		location			seen	May 16 at 8:48

27 Actions

Apr 12	comment	Let $f:[a,b]\to\mathbb R$ be Riemann integrable and $f>0$. Prove that $\int_a^bf>0$. (Without Measure theory) If $L(f, P)$ is a lower sum then $$L(f,P) \le \int_a^b f dx.$$ Each lower sum is clearly positive.
Jan 18	accepted	Wedge product of matrices
Jan 18	accepted	If coefficients are algebraic then the roots are algebraic
Nov 30	comment	Real integral by residues @DonAntonio I got it now!
Nov 30	accepted	Real integral by residues
Nov 30	asked	If coefficients are algebraic then the roots are algebraic
Nov 22	comment	Real integral by residues It is not exactly L'Hopitals rule!
Nov 22	asked	Real integral by residues
Oct 30	comment	Evaluating a surface integral with differential forms Take the normal to the surface (cylinder). When you walk on the circle (boundary) the surface should be on your left.
Oct 30	accepted	Sum of two consecutive squares which is a cube
Oct 29	answered	Complex periodic exponential
Oct 29	answered	Evaluating a surface integral with differential forms
Oct 24	asked	Sum of two consecutive squares which is a cube
Oct 12	awarded	Editor
Oct 12	revised	Circle in the complex plane added 119 characters in body
Oct 12	answered	Circle in the complex plane
Oct 12	asked	Wedge product of matrices
Oct 12	comment	how to prove cubic root of 25 is irrational We used the FTA which is proved by induction.
Oct 12	answered	how to prove cubic root of 25 is irrational
Oct 10	awarded	Supporter