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2010

2010

If L : Y → Y is a bounded linear map on a Banach space Y, the “radius of the essential spectrum” or “essential spectral radius… Expand

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2010

2010

The Lefschetz fixed point theorem follows easily from the identification of the Lefschetz number with the fixed point index. This… Expand

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2008

2008

Many problems in the theory of differential equations were initially treated with analytic techniques and later evolved towards… Expand

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2003

2003

Let a ϵ C[0,1], b ϵ C([0,1], (-∞, 0)). Let φ1(t) be the unique solution of the linear boundary value problem
u″(t)+s(t)u′(t)+b(t… Expand

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2001

2001

In the paper we construct a topological fixed-point theory for a class of set-valued maps which appears in natural way in… Expand

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1999

1999

It is proved that there exists a fixed point index theory for
operators which are condensing on the countable subsets of the… Expand

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1999

1999

The purpose of the paper is to define a fixed point index for equivariant maps of $G$-ENR's and to state and prove some of its… Expand

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1997

1997

A fixed point index is defined for mappings defined on a cone K which do not necessarily take their values in K but satisfy a… Expand

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1991

1991

Dold's fixed point index and fixed point transfer are generalized for certain coincidence situations, namely maps which change… Expand

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1985

1985

A copying machine having means for producing a fusible toner image on a copy substrate, includes a radiant energy light source (e… Expand

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