# Browse by Subject "Mathematics"

• (1974)

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• (1954)

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• (1966)

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• (1970)

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• (1995)
Various topics related to the work of Ramanujan are discussed in this thesis. In Chapter 2, we give a new proof of Ramanujan's famous partition identity modulo 5 (see (1.1)). This proof is an improvement of W. N. Bailey's ...

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• (1977)

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• (1953)

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• (1984)
We consider the problem (DELTA)('2)(w(x,y)) = 0, w((+OR-)1,y) = w(,x)((+OR-)1,y) = 0 with boundary conditions w(,xx)(x,0) = f(x) w(,yy)(x,0) = g(x) on the semi-infinite strip -1 (LESSTHEQ) x (LESSTHEQ) 1, 0 < y.

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• (1975)

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• (1995)
This thesis deals with three main extremal problems on convex lattice polygons in the plane. A convex lattice polygon is the intersection of a compact convex set with the integer lattice (the set of all points with integer ...

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• (1967)

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• (1970)

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• (1968)

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• (1971)

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• (1963)

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• (1959)

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• (1980)
It is known that many decision problems are unsolvable in the class of all finitely presented groups. When the class of groups is restricted, problems previously unsolvable can become solvable. In this work we investigate ...

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• (1977)

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• (1967)

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• (1969)

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