




209 
On a functional equation related to competition

P. Kahlig, J. Matkowski 
2013 

208 
Invariance of Bajraktarevic mean with respect to BeckenbachGini means

J. Matkowski 
2013 

207 
Subhomogeneity of the L^{p}norm like functionals

J. Matkowski 
2013 

206 
Persistently Optimal Policies in Stochastic Dynamic Programming with Generalized Discounting

A. Jaśkiewicz, A. S. Nowak, J. Matkowski 
2013 

205 
Pointwise monotonic functions and generalized subadditivity

J. Matkowski 
2013 

204 
Convexity Property and a new Characterization of Euler's Gamma Function

H. Alzer, J. Matkowski 
2013 

203 
Meanvalue property and characterizations of some elementary functions

J. Matkowski 
2013 

202 
Fixed point theorem in a uniformly convex paranormed space and its application

J. Matkowski 
2013 

201 
Meanvalue theorem for vectorvalued functions

J. Matkowski 
2012 

200 
Results of Tadeusz Świątkowski on algebraic sums of sets and their applications in the theory of subadditive functions

J. Matkowski 
2012 

199 
Invariant graphs of functions for the meantype mappings

J. Matkowski 
2012 

198 
Fixed points and iterations of meantype mappings

J. Matkowski 
2012 

197 
Invariance of quasiarithmetic mean with respect to a system of generalized Bajraktarevic means

J. Matkowski 
2012 

196 
Quadratic inequalities and a characterization of inner product

J. Matkowski 
2012 

195 
Pexider type generalization of the Minkowski inequality

J. Matkowski 
2012 

194 
Invariance of Bajraktarevic mean with respect to quasi arithmetic means and its relation to the classical harmony

J. Matkowski 
2012 

193 
Uniformly bounded setvalued Nemytskij operators acting between generalized Hölder function spaces

M. Wróbel, J. Matkowski 
2012 

192 
Uniformly bounded composition operators in the Banach space of absolutely continuous functions

D. Głazowska, N. Merentes, J. L. Sánchez Hernández, J. Matkowski 
2012 

191 
On means which are quasiarithmetic and of the BeckenbachGini type

J. Matkowski 
2012 

190 
Generalized weighted arithmetic means

J. Matkowski 
2012 

189 
Controllability of the Semilinear VolterraStieltjes Integral Equations in the Space of Regulated Function

L. A. Azocar, H. Leiva, N. Merentes, J. Matkowski 
2012 

188 
Uniformly bounded Nemytskij operators generated by setvalued functions between generalized Hölder function spaces

M. Wróbel, J. Matkowski 
2011 

187 
Uniformly bounded composition operators between general Lipschitz function normed spaces

J. Matkowski 
2011 

186 
Quotient mean, its invariance with respect to a quasiarithmetic meantype mapping, and some applications

J. Matkowski 
2011 

185 
Meanvalue type equalities where function and its derivative are interchanged

J. Matkowski 
2011 

184 
Functional equations related to homographic functions

J. Matkowski 
2011 

183 
Power means generated by some meanvalue theorems

J. Matkowski 
2011 

182 
Meantype mappings and invariant curves

J. Matkowski 
2011 

181 
On some plane curves related to the olpnorm and the Euclidean norm

J. Bojarski, T. Małolepszy, J. Matkowski 
2011 

180 
Invariance of Cauchy mean with respect to Lagrange meantype mapping of the same generators

J. Matkowski 
2011 

179 
A functional equation related to equality of means problem

J. Matkowski 
2011 

178 
On Discounted Dynamic Programming with Unbounded Returns

A. S. Nowak, J. Matkowski 
2011 

177 
Subadditive periodic functions

J. Matkowski 
2011 

176 
A meanvalue theorem and its applications

J. Matkowski 
2011 

175 
A functional equation characterizing homographic functions

J. Matkowski 
2010 

174 
Local operators and a characterization of Volterra operator

J. Matkowski 
2010 

173 
The bounded local operators in the space of Hölder functions

M. Wróbel, J. Matkowski 
2010 

172 
On some generalizations of GołąbSchinzel functional equation

J. Okrzesik, J. Matkowski 
2010 

171 
Homogeneous means generated by a meanvalue theorem

I. Pawlikowska, J. Matkowski 
2010 

170 
A generalization of the GołąbSchinzel functional equation

J. Matkowski 
2010 

169 
On weighted extensions of BeckenbachGini means

J. Matkowski 
2010 

168 
Generalizations of Lagrange and Cauchy MeanValue Theorems

J. Matkowski 
2010 

167 
A composite functional equation and invariant curves

J. Okrzesik, J. Matkowski 
2010 

166 
Generalized weighted quasiarithmetic means

J. Matkowski 
2010 

165 
Uniformly continuous superposition operators in the space of bounded variation functions

J. Matkowski 
2010 

164 
On the nonreducibility of nonstationary correlation functions to stationary ones under a class of mean poperator transformations

E. Porcu, J. Mateu, J. Matkowski 
2010 

163 
Uniformly continuous composition operators in the space of functions of two variables of bounded φvariation in the sense of of Wiener

J. A. Guerreo, N. Merentes, J. Matkowski 
2010 

162 
Uniformly continuous setvalued com position operators in the spaces of functions of bounded variation in the sense of Riesz

W. Aziz, N. Merentes, J. Matkowski 
2010 

161 
On Bellman equation for asymptotics of utility from terminal wealth

L. Stettner, J. Matkowski 
2010 

160 
Uniformly continuous setvalued composition operators in the space of continuous functions of bounded variation in the sense of Wiener

A. Azócar, J. A. Guerero, N. Merentes, J. Matkowski 
2010 

159 
Uniformly continuous composition operators in the space of bounded φvariation functions

J. A. Guerrero, H. Leiva, N. Merentes, J. Matkowski 
2010 

158 
Embeddability of meantype mappings in a continuous iteration semigroup

W. Jarczyk, J. Matkowski 
2010 

157 
Iterations of the meantype mappings

J. Matkowski 
2009 

156 
Extension of solutions of a functional equation in two variables

J. Matkowski 
2009 

155 
On extension of solutions of a simultaneous systems if iterative functional equations

J. Matkowski 
2009 

154 
Uniformly continuous superposition operators in the space of Hölder functions

J. Matkowski 
2009 

153 
Representation theorem for locally defined operators in the space of Whitney differentiable functions

M. Wróbel, J. Matkowski 
2009 

152 
A converse of the Hölder inequality theorem

J. Matkowski 
2009 

151 
Iteration groups, commuting functions and simultaneous systems of linear functional equations

J. Matkowski 
2008 

150 
Quasi Arithmetic Covariance Functions and their Possible Reducibility through Functional Equations

Emilio Porcu, Jorge Mateu, J. Matkowski 
2008 

149 
Generalized convex functions and a solution of a problem of Zs. Páles

J. Matkowski 
2008 

148 
Converse theorem for the Minkowski inequality

J. Matkowski 
2008 

147 
Uniformly continuous superposition operators in the spaces of differentiable functions and absolutely continuous functions

J. Matkowski 
2008 

146 
A functional equation with two unknown functions

P. Volkmann, J. Matkowski 
2008 

145 
A pair of linear functional inequalities characterizing polynomials

D. Krassowska, T. Małolepszy, J. Matkowski 
2008 

144 
Locally defined operators in the space of Whitney differentiable functions

M. Wróbel, J. Matkowski 
2008 

143 
A simultaneous system of functional inequalities and mappings which are weakly of a constant sign

D. Krassowska, J. Matkowski 
2007 

142 
Remarks on Lipschitzian mappings and some fixed point theorems

J. Matkowski 
2007 

141 
When M convexity of a function implies its N convexity for some means M and N

J. Matkowski 
2007 

140 
An invariance of the geometric mean with respect to Lagrangean means

D. Głazowska, J. Matkowski 
2007 

139 
On iterations of means and functional equations

J. Matkowski 
2006 

138 
O średnich w trapezie

J. Matkowski 
2006 

137 
On weighted extensions of Cauchy's means

J. Matkowski 
2006 

136 
Invariance of the arithmetic mean with respect to special meantype mappings

J. Domsta, J. Matkowski 
2006 

135 
Invariance in the class of weighted quasiarithmetic means

J. Jarczyk, J. Matkowski 
2006 

134 
Distributions of homogeneous means of uniform independent random variables and a characterization of means

P. Kahlig, J. Matkowski 
2005 

133 
Lagrangean meantype mapping for which the arithmetic mean is invariant

J. Matkowski 
2005 

132 
A pair of linear functional inequalities and a characterization of L^{p}norm

D. Krassowska, J. Matkowski 
2005 

131 
Elliptic means and their generalizations

P. Kahlig, J. Matkowski 
2004 

130 
The GołąbSchinzel functional equation restricted to ab halflines

P. Kahlig, J. Matkowski 
2004 

129 
Convex functions with respect to a mean and a characterization a quasiarithmetic mean

J. Matkowski 
2004 

128 
The converse theorem for Minkowski's inequality

J. Matkowski 
2004 

127 
Solution of regularity problem in equality of Cauchy means

J. Matkowski 
2004 

126 
Remarks on some problems of Th. M. Rassias

J. Matkowski 
2004 

125 
A modifieed GołąbSchinzel functional equation (with abapplications to meteorology and fluid mechanics)

P. Kahlig, J. Matkowski 
2003 

124 
A pair of linear functional inequalities of iterative type related to a Cauchy functional equation

D. Krassowska, J. Matkowski 
2003 

123 
On subadditive functions and ψadditive mappings

J. Matkowski 
2003 

122 
On a composite functional equation

J. Okrzesik, J. Matkowski 
2003 

121 
Another characterization of the Gamma function

D. Gronau, J. Matkowski 
2003 

120 
Solution of Z. Daróczy problem on mixing quasiarithmetic means

P. Kahlig, J. Matkowski 
2003 

119 
Affine and convex functions with respect to the logarithmic mean

J. Matkowski 
2003 

118 
Cocycles of continuous iteration semigroups

G. Guzik, W. Jarczyk, J. Matkowski 
2003 

117 
An invariance of the geometric mean with respect to Stolarsky meantype mapping

D. Głazowska, W. Jarczyk, J. Matkowski 
2003 

116 
Arithmetic mean as a linear combinationtion of two quasiarithmetic means

D. Głazowska, W. Jarczyk, J. Matkowski 
2002 

115 
On Mulholland's inequality

W. Jarczyk, J. Matkowski 
2002 

114 
On invariant generalized BeckenbachGini means

J. Matkowski 
2002 

113 
J. Ciag geometryczny  metoda rozwiazywania równań rekurencyjnych

J. Matkowski 
2002 

112 
Representation theorem for locally defined operators in the space of Whitney differentiable functions

M.Wróbel, J. Matkowski 
2002 

111 
On ( α  a )convex set valued functions

W. Ślepak, J. Matkowski 
2002 

110 
Średnie i związane z nimi ciągi

J. Matkowski 
2002 

109 
Funkcyjne równania

J. Matkowski 
2002 

108 
On iteration semigroups of meantype mappings and invariant means

J. Matkowski 
2002 

107 
On a problem of Alsina again

M. Sablik, J. Matkowski 
2001 

106 
On the polynomiallike iterative functional equation

W. Zhang, J. Matkowski 
2000 

105 
Dido's functional equation revisited

P. Kahlig, A.N. Sharkovsky, J. Matkowski 
2000 

104 
Remarks on quasiarithmetic means

W. Jarczyk, J. Matkowski 
2000 

103 
On linear dependence of iterates

W. Zhang, J. Matkowski 
2000 

102 
Iterations of meantype mappings and invariant means

J. Matkowski 
1999 

101 
On a functional equation for Dido's problem

P. Kahlig, J. Matkowski 
1999 

100 
Mean value property and associated functional equation

J. Matkowski 
1999 

99 
Invariant and complementary means

J. Matkowski 
1999 

98 
A characterization of L^{p}norm with the aid of equality condition in the Hölder inequality

J. Rätz, J. Matkowski 
1999 

97 
Decomposition of homogeneous means and construction of some metric spaces

P. Kahlig, J. Matkowski 
1998 

96 
Convex setvalued functions and their conjugate

K. Nikodem, J. Matkowski 
1998 

95 
Continuous solutions of a functional equation

J. Matkowski 
1998 

94 
A separation theorem for M^{φ}convex functions

Z. Zgraja, J. Matkowski 
1998 

93 
Characteristic analysis for a polynomiallike iterative equation

W. Zhang, J. Matkowski 
1998 

92 
Round of stability of functional iterations on product spaces

S. L. Singh, J. Matkowski 
1997 

91 
Iteration groups with generalized convex and concave elements

J. Matkowski 
1997 

90 
Envelopes of families of curves related to some iterative functional equations

P. Kahlig, J. Matkowski 
1997 

89 
Method of characteristic for functional equations in polynomial form

W. Zhang, J. Matkowski 
1997 

88 
On the composition of homogeneous quasiarithmetic means

P. Kahlig, J. Matkowski 
1997 

87 
Lipschitzian composition operators in some Banach function spaces

J. Matkowski 
1997 

86 
Convex functions with respect to an arbitrary mean

J. Rätz, J. Matkowski 
1997 

85 
Convexity of power functions with respect to symmetric homogeneous means

J. Rätz, J. Matkowski 
1997 

84 
The converse of a generalized Hölder inequality

J. Matkowski 
1997 

83 
Equality in Minkowski inequality and a characterization of L^{p}norm

J. Rätz, J. Matkowski 
1997 

82 
Banach type fixed point theorem on product of spaces

S.L. Singh, J. Matkowski 
1997 

81 
On a class of composite functional equations in a single variable

P. Kahlig, J. Matkowski 
1996 

80 
Envelopes of special class of oneparameter families of curves

P. Kahlig, J. Matkowski 
1996 

79 
On a characterization of L^{p}norm and a converse of Minkowski's inequality

J. Matkowski 
1996 

78 
A generalized αWright convexity and related functional equation

M. Wróbel, J. Matkowski 
1996 

77 
Positive homogeneous functionals related to L^{p}norms

M. Pycia, J. Matkowski 
1996 

76 
Functional equations involving logarithmic mean

P. Kahlig, J. Matkowski 
1996 

75 
Nonlinear contractions on semimetric spaces

J. Jachymski, T. Świątkowski, J. Matkowski 
1995 

74 
Remark on Generalization of Minkowski's inequality

J. Jelínek, J. Matkowski 
1995 

73 
On a system of simultaneous iterative functional equations

J. Matkowski 
1995 

72 
On stability of the homogeneity condition

Z. Kominek, J. Matkowski 
1995 

71 
Remarks on multiplication of subadditive functions

J. Matkowski 
1995 

70 
Remark on globally Lipschitzian composition operators

A. Matkowska, N. Merentes, J. Matkowski 
1995 

69 
On ( α ; a )convex functions

M. Pycia, J. Matkowski 
1995 

68 
Convexlike inequality, homogeneity, subadditivity and characterization of L^{p}norm

M. Pycia, J. Matkowski 
1995 

67 
On some extensions of the GołąbSchinzel functional equation

P. Kahlig, J. Matkowski 
1994 

66 
An integral Jensen inequality for convex multifunctions

K. Nikodem, J. Matkowski 
1994 

65 
Geometrically convex solutions of certain difference equation and generalized BohrMollerup type theorems

D. Gronau, J. Matkowski 
1994 

64 
Nonlinear contractions in metrically convex space

J. Matkowski 
1994 

63 
A sandwich with convexity

K. Baron, K. Nikodem, J. Matkowski 
1994 

62 
The converse of the Hölder inequality and its generalizations

J. Matkowski 
1994 

61 
Geometrical convexity and generalization of the BohrMollerup theorem on the Gamma function

D. Gronau, J. Matkowski 
1993 

60 
On the equality condition in Hölder's and Minkowski's inequalities

J. Rätz, J. Matkowski 
1993 

59 
On subadditive functions

J. Matkowski 
1993 

58 
On a generalization of BrowderGoehdeKirk fixed point theorem

J. Matkowski 
1993 

57 
Functions which are additive on their graphs and some generalizations

J. Matkowski 
1993 

56 
Characterization of globally Lipschitzian composition operator in the Sobolev space W_{p}^{n} [a,b]

N. Merentes, J. Matkowski 
1993 

55 
On a characterization of L^{p}norm with the aid of the triangle inequality

J. Matkowski 
1993 

54 
Subadditive functions and partial converses of Minkowski's and Mulholland's inequalities

T. Świątkowski, J. Matkowski 
1993 

53 
Solutions of some functional inequalities connected with convex functions

K. Nikodem, J. Matkowski 
1993 

52 
On a generalization of Mulholland's inequality

J. Matkowski 
1993 

51 
Subadditive functions and a relaxation of the homogeneity condition of seminorms

J. Matkowski 
1993 

50 
Characterization of globally Lipschitzian composition operators in the Banach space BV_{p}^{2}

N. Merentes, J. Matkowski 
1992 

49 
L^{p}like paranorms

J. Matkowski 
1991 

48 
On some aspects of interpolation and functional equations

P. Kahlig, J. Matkowski 
1991 

47 
Functional inequality characterizing concave functions in (0;∞)^{k}

J. Matkowski 
1992 

46 
On aWright convexity and the converse of Minkowski's inequality

J. Matkowski 
1992 

45 
On an iteration group and its application to a proof of the converse of Minkowski's inequality theorem

J. Matkowski 
1991 

44 
A generalization of Hölder's and Minkowski's inequality and conjugate functions

J. Matkowski 
1991 

43 
Quasimonotonicity, subadditive bijections of R_{+} and characterization of L^{p}norm

T. Świątkowski, J. Matkowski 
1991 

42 
A functional inequality characterizing convex functions, conjugacy and a generalization of Hölder's and Minkowski's inequalities

J. Matkowski 
1990 

41 
The converse of the Minkowski's inequality theorem and its generalization

J. Matkowski 
1990 

40 
On a characterization of L^{p}norm

J. Matkowski 
1989 

39 
Locally defined operators in the space of differentiable functions

K. Lichawski, J. Miś, J. Matkowski 
1989 

38 
On Nemytskii operator

J. Matkowski 
1988 

37 
On Nemytskii Lipschitzian operator

J. Matkowski 
1987 

36 
BV solutions of nonlinear functional equations

C. Dyjak, J. Matkowski 
1987 

35 
On a functional equation φ(x) = αφ(αx) + (1  α)φ(1  (1  α )x)

Z. Kominek, J. Matkowski 
1986 

34 
Some remarks on a problem of C. Alsina

M. Sablik, J. Matkowski 
1986 

33 
Examples and remarks to a fixed point theorem

J. Miś, J. Matkowski 
1986 

32 
Remark on BV solutions of a functional equation connected with invariant measures

J. Matkowski 
1985 

31 
Cauchy functional equation on restricted domain and commuting functions

J. Matkowski 
1985 

30 
On a characterization of Lipschitzian operators of substitution in the space BV[a,b]

J. Miś, J. Matkowski 
1982 

29 
Form of Lipschitz operators of substitution in Banach space of differentiable functions

J. Matkowski 
1984 

28 
Functional equation and Nemytskii operators

J. Matkowski 
1982 

27 
Remarks on a fixed point theorem

Z. Benedykt, J. Matkowski 
1981 

26 
Note on iterations of some entire functions

W. Ogińska, J. Matkowski 
1979 

25 
Fixed point theorems for contractive mappings in metric space

J. Matkowski 
1980 

24 
On equivalence of some fixed point theorems for Selfmappings of Metrically Convex Space

B. Węgrzyk, J. Matkowski 
1978 

23 
Integrable solutions of a linear functional inequality

J. Matkowski 
1978 

22 
Fixed point theorems for mappings with a contractive iterate at a point

J. Matkowski 
1977 

21 
On sequences of contraction mappings

K. Baron, J. Matkowski 
1977 

20 
Analytic solutions of a system of functional equations

K. Baron, R. Ger, J. Matkowski 
1975 

19 
Integrable solutions of functional equations

J. Matkowski 
1975 

18 
Solutions of bounded variation of a linear functional equation

M. Zdun , J. Matkowski 
1974 

17 
On the existence of a convex solution of a functional equation

Z. Kominek, J. Matkowski 
1974 

16 
A fixed point theorem for nonexpansive mappings on compact metric spaces

K. Baron, J. Matkowski 
1973 

15 
Some inequalities and generalization of Banach's principle

J. Matkowski 
1973 

14 
On Lipschitzian solutions of a functional equation

J. Matkowski 
1973 

13 
On the solutions fulfilling a Lipschitz condition of a nonlinear functional equation

K. Baron, J. Matkowski 
1972 

12 
The uniqueness of solutions of a system of functional equations in some special classes of functions

J. Matkowski 
1972 

11 
Solutions of a functional equation in a special class of functions

M. Kuczma, J. Matkowski 
1972 

10 
On the existence of differentiable solutions of a functional equation

J. Matkowski 
1971 

9 
On the continuous dependence of local analytic solutions of a functional equation in a nonuniqueness case

J. Matkowski 
1971 

8 
On the continuous dependence of C^{r} solutions of a functional equation on given functions

J. Matkowski 
1971 

7 
On meromorphic solutions of a functional equation II

J. Matkowski 
1971 

6 
Note on a functional equation

J. Matkowski 
1971 

5 
On the uniqueness of differentiable solutions of a functional equation

J. Matkowski 
1970 

4 
On the continuous dependence of local analytic solutions of a functional equation on given functions

J. Matkowski 
1970 

3 
On the continuous dependence of solutions of a functional equation on given functions

J. Matkowski 
1970 

2 
On meromorphic solutions of a functional equations

J. Matkowski 
1970 

1 
On some properties of solutions of a functional equations

J. Matkowski 
1969 
