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Philippe Gaucher's user avatar
Philippe Gaucher's user avatar
Philippe Gaucher's user avatar
Philippe Gaucher
  • Member for 12 years, 6 months
  • Last seen this week
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Widely accepted mathematical results that were later shown to be wrong?
@GerryMyerson Did this counterexample have some (bad) consequences for other "theorems" ?
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Could someone help me to prove or disprove the following inequality?
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Vafa-Witten invariants for mathematicians
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Determinant of a certain Toeplitz matrix
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Singular cardinal $\kappa$ with projective plane such that all edges have cardinality $<\kappa$
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Control and observability of Clifford algebra and quaternion valued systems?
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An intelligent ant living on a torus or sphere – Does it have a universal way to find out?
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Collatz conjecture in all its variants
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History of the notation for scalar product
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On the equation $x^3 + y^3 = z^4$
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Any group is a quotient of an acyclic group?
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Is a smooth transformation of a plane domain onto a plane domain with everywhere nonzero Jacobian determinant necessarily a bijection?
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Doubt about lemma for polynomial equivalence
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Cross-ratios of $4$ boundary points on a continuous family of disks in $\mathbb C^1$
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Non-ccc and non-locally ccc
@TimCampion Ah thanks: now I understand the question.
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$L^p$ norm inequalities with respect to strongly-log-concave densities
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Is there a name for this "inner product" on projective space?
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loop space of a finite CW-complex
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Solutions to matrix equations in the non-negative integers
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Peano axioms— mathematical induction and other axioms
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