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21 Feb 2011: Show that if there exists a vector e such that e,n(s),b(s) are linearly dependent forall s I, then α is a plane curve. ... ϕ(s,v) = α(s) r(n(s) cos v b(s) sin v. ),. where n = n(s) and b = b(s) are the normal and binormal vectors of α.

25 Oct 2011: 4. Let AB be a segment of straight line in the plane with endpoints A and B and let be afixed number strictly greater than the length of AB. ... ϕ(s,v) = α(s) r(n(s) cos v b(s) sin v. ),. where n = n(s) and b = b(s) are the normal and binormal vectors

31 Oct 2011: B}. Show thatif A and B are both closed and one of them is bounded then A B is closed. ... b) Is the space R[0, 1] of integrable functions on [0, 1], equipped with the uniform norm, complete?

31 Oct 2011: 4. Let AB be a segment of straight line in the plane with endpoints A and B and let be afixed number strictly greater than the length of AB. ... ϕ(s,v) = α(s) r(n(s) cos v b(s) sin v. ),. where n = n(s) and b = b(s) are the normal and binormal vectors

30 Oct 2011: Hint: argue by contradiction.). (6) Let f : B B be a continuous map from the open disc B = {(x, y) R2 : x2 y2 < 1} into it-self. ... . (a) Show that G is a metric on Q. (b) Assume n = 1.

31 Oct 2011: B}. Show thatif A and B are both closed and one of them is bounded then A B is closed. ... b) Is the space R[0, 1] of integrable functions on [0, 1], equipped with the uniform norm, complete?

16 Aug 2011: family B A, we form the family φ(B) byreplacing appropriately chosen B B by CijB. ... Then there existsan injection φ : I(A) I(C) such that |φ(B)| = |B| for all B I(A).

29 Jul 2011: Then T is a maximal torus of I, and B, B. ... opare opposite. Borel subgroups containing it. Also U, Uop. are the unipotent radicalsof B, B.

25 Aug 2011: For B A [n](2) let. IB = {E I : E [n](2) = B}. ... LetU = {B B : B minimal, |B| < t}. andV = {B B : B minimal, |B| = t}.

29 Jul 2011: Wefix a partition n = n1 n2, and let P be the standard parabolic (con-taining B) corresponding to this partition. ... T0,. where R is the unipotent radical of B and T0 is the maximal compactsubgroup of T.