Scientific Commons: Alexander Ostrowski

Don't call us, we'll call you - Performance Management in Multi-Channel Environments (2007)

Ragnar Schierholz, Alexander Ostrowski, Susanne Glissmann, Lutz M. Kolbe, Walter Brenner

Typically, companies nowadays implement so-called multi-channel management strategies, i.e. they seek to offer their customers a brad variety of interaction channels for marketing, sales and...

On Hadamard's Test for Singular Points (2006)

Ostrowski, Alexander

On The Diophantine Equation ay2$by$c = dxn (2006)

Landau, Edmund, Ostrowski, Alexander

Performance Measurement of Mobile Marketing in Multi-Channel Environments (2005)

Ragnar Schierholz, Alexander Ostrowski, Susanne Glissmann, Lutz M. Kolbe, Walter Brenner

The burst of the e-bubble largely affected the expectations towards and the willingness to invest in mobile initiatives. Recently, the interest for mobile business and mobile commerce both in...

MATHEMATICAL MISCELLANEA. XXVII. ON THE CONTINUITY OF CHARACTERISTIC ROOTS IN THEIR DEPENDENCE ON THE MATRIX ELEMENTS (1998)

OSTROWSKI, ALEXANDER

ON THE CONVERGENCE AND ESTIMATION OF ERRORS IN SOME METHODS OF SOLUTION OF NUMERICAL EQUATIONS (1998)

OSTROWSKI, ALEXANDER

Bounds for the maximal characteristic root of a non-negative irreducible matrix (1960)

Ostrowski, Alexander, Schneider, Hans

Ueber das Nichtverschwinden einer Klasse von Determinanten und die Lokalisierung der charakteristischen Wurzeln von Matrizen (1951)

Ostrowski, Alexander

Représentation conforme á la frontiére / domaines généraux par C. Gattegno et A. Ostrowski (1949)

Gattegno, Caleb, Ostrowski, Alexander

Representation conforme á la frontiére / domaines particuliers par C. Gattegno et A. Ostrowski (1949)

Gattegno, Caleb, Ostrowski, Alexander