# Gjergji Zaimi

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## Registered User

 Name Gjergji Zaimi Member for 3 years Seen 2 hours ago Website Location Pasadena Age 24
I am an undergraduate (mathematics) student at Caltech. You can contact me at gzaimi[]caltech.edu
 15h answered How many Perfect Matchings in a regular bipartite Graph 2d accepted Lovasz theta function and independence number of product of simple odd-cycles May15 comment Formalization (and background) of a formula, concering the integral points of a polygon.Yes, that's the theorem I was referring to. May11 accepted Formalization (and background) of a formula, concering the integral points of a polygon. May11 accepted Trying to solve: Show that n does not divide 3^n - 2^n for n greater than or equal to 2. May11 answered Trying to solve: Show that n does not divide 3^n - 2^n for n greater than or equal to 2. May7 comment Can a harmonic number be a rational number for non-integer rational argument?Oops! Thanks Vladimir! May7 revised Can a harmonic number be a rational number for non-integer rational argument?added 2 characters in body May7 revised Can a harmonic number be a rational number for non-integer rational argument?edited tags May7 accepted Can a harmonic number be a rational number for non-integer rational argument? May7 answered Can a harmonic number be a rational number for non-integer rational argument? May7 revised average involving phi functiondeleted 2 characters in body May3 answered Formalization (and background) of a formula, concering the integral points of a polygon. May1 awarded ● Nice Answer Apr25 accepted Estimate on sum of squares of multinomial coefficients Apr25 comment A divergent series related to the number of divisors of of p-1See Igor's answer for an argument along the lines you want. mathoverflow.net/questions/27508/… Apr23 comment What is flexible about flexible algebras?@Samuele, if you want a definition of flexible algebras that doesn't have several occurrences of a variable in the same monomial, notice that an algebra is flexible iff $(x,y,z)+(z,y,x)=0$. The parenthesis denote associators. Apr23 answered Estimate on sum of squares of multinomial coefficients Apr19 comment A “bit” of primesThere is already a very nice article in the monthly about this :) jstor.org/stable/27641834 Mar30 awarded ● Enlightened Mar30 awarded ● Nice Answer Mar26 accepted Reduction of $f$-solubility to $1$-factor Mar22 accepted Combinatorial interpretations of integral transforms Mar19 comment Evaluating an infinite product of q-exponentialsWhat do you consider closed form here? A MacMahon type product? A generating function for plane partitions? Something else?... Mar13 awarded ● Popular Question Mar12 comment A possible refinement of a theorem of MalliavinMarc, are you asking for motivation for my question or Malliavin's theorem? Mar11 revised A possible refinement of a theorem of Malliavinadded 622 characters in body Mar8 comment A possible refinement of a theorem of MalliavinThanks quid! The tag suggestion doesn't work for me, for some reason, and I tagged it by mistake. Mar8 asked A possible refinement of a theorem of Malliavin Mar6 revised principal specialization of projective Schur functionsadded a tag Mar6 comment Topological characterization of the closed interval $[0,1]$.mathoverflow.net/questions/76134/… Mar4 comment Number of Matchings in Regular Bipartite GraphIs this homework? Mar3 comment When adding a constant makes a multivariate polynomial reducible?@Amit, on the contrary, such examples all follow from Newton polytope considerations. If the Newton polytope is not decomposable as a Minkowski sum, then such an $m$ does not exist. Mar1 awarded ● Nice Answer Mar1 revised Access to a preprint by D. N. Vermaedited tags Feb28 answered Access to a preprint by D. N. Verma Feb28 comment Can the SL_2 character variety of a three-manifold be nonreduced?But now you know who to ask :) Feb28 comment Can the SL_2 character variety of a three-manifold be nonreduced?Coincidentally I was recently reading a paper of A. Sikora, where he mentions that $sl_2$ character varieties aren't always reduced as schemes. See section 12 in arxiv.org/abs/0902.2589 However, for the 3-manifold group case, he cites work of M.Kapovich that doesn't seem to be in print. Feb15 revised principal specialization of projective Schur functionsadded 101 characters in body Feb14 accepted principal specialization of projective Schur functions Feb14 answered principal specialization of projective Schur functions Feb13 revised A “known” Pythagorean identity in algebra?edited tags Feb13 comment A “known” Pythagorean identity in algebra?Look at chapter 1 in Macdonald's book on symmetric functions. Though, that identity is very close to the definition of the elementary symmetric polynomials :) Feb13 answered A “known” Pythagorean identity in algebra? Feb11 comment Decidability of periodic tilings of the planeThe tilability question is undecidable even if we restrict the tiles to be rectangles. Feb5 comment Trichotomies in mathematicsThe first and fourth bullet points are essentially the same trichotomy :) Jan29 comment Sets of integers represented by degree zero rational functionsAh, nice! The degree zero condition was an attempt at avoiding easy ways of encoding the MRDP theorem. Not a successful one, it seems! :-) Jan29 comment How many values a polynomial map misses? This question has appeared before with no actual answer mathoverflow.net/questions/6820/… Jan29 asked Sets of integers represented by degree zero rational functions Jan28 awarded ● Nice Answer