Use "Ctrl + F" to search for keywords over the site.

160	Uniformly continuous set-valued 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
206	Persistently Optimal Policies in Stochastic Dynamic Programming with Generalized Discounting	A. Jaśkiewicz, A. S. Nowak, J. Matkowski	2013
70	Remark on globally Lipschitzian composition operators	A. Matkowska, N. Merentes, J. Matkowski	1995
178	On Discounted Dynamic Programming with Unbounded Returns	A. S. Nowak, J. Matkowski	2011
24	On equivalence of some fixed point theorems for Selfmappings of Metrically Convex Space	B. Węgrzyk,  J. Matkowski	1978
36	BV -solutions of nonlinear functional equations	C. Dyjak, J. Matkowski	1987
140	An invariance of the geometric mean with respect to Lagrangean means	D. Głazowska, J. Matkowski	2007
192	Uniformly bounded composition operators in the Banach space of absolutely continuous functions	D. Głazowska, N. Merentes, J. L. Sánchez Hernández, J. Matkowski	2012
117	An invariance of the geometric mean with respect to Stolarsky mean-type mapping	D. Głazowska, W. Jarczyk, J. Matkowski	2003
116	Arithmetic mean as a linear combinationtion of two quasi-arithmetic means	D. Głazowska, W. Jarczyk, J. Matkowski	2002
65	Geometrically convex solutions of certain difference equation and generalized Bohr-Mollerup type theorems	D. Gronau, J. Matkowski	1994
121	Another characterization of the Gamma function	D. Gronau, J. Matkowski	2003
61	Geometrical convexity and generalization of the Bohr-Mollerup theorem on the Gamma function	D. Gronau, J. Matkowski	1993
143	A simultaneous system of functional inequalities and mappings which are weakly of a constant sign	D. Krassowska, J. Matkowski	2007
124	A pair of linear functional inequalities of iterative type related to a Cauchy functional equation	D. Krassowska, J. Matkowski	2003
132	A pair of linear functional inequalities and a characterization of Lp-norm	D. Krassowska, J. Matkowski	2005
145	A pair of linear functional in-equalities characterizing polynomials	D. Krassowska, T. Małolepszy, J. Matkowski	2008
164	On the non-reducibility of non-stationary correlation functions to stationary ones under a class of mean p-operator transformations	E. Porcu, J. Mateu, J. Matkowski	2010
150	Quasi Arithmetic Covariance Functions and their Possible Reducibility through Functional Equations	Emilio Porcu, Jorge Mateu, J. Matkowski	2008
118	Cocycles of continuous iteration semi-groups	G. Guzik, W. Jarczyk, J. Matkowski	2003
204	Convexity Property and a new Characterization of Euler’'s Gamma Function	H. Alzer, J. Matkowski	2013
171	Homogeneous means generated by a mean-value theorem	I. Pawlikowska, J. Matkowski	2010
163	Uniformly continuous composition operators in the space of functions of two variables of bounded φ-variation in the sense of of Wiener	J. A. Guerreo, N. Merentes, J. Matkowski	2010
159	Uniformly continuous composition operators in the space of bounded φ-variation functions	J. A. Guerrero, H. Leiva, N. Merentes, J. Matkowski	2010
181	On some plane curves related to the olp-norm and the Euclidean norm	J. Bojarski, T. Małolepszy, J. Matkowski	2011
136	Invariance of the arithmetic mean with respect to special mean-type mappings	J. Domsta, J. Matkowski	2006
75	Nonlinear contractions on semimetric spaces	J. Jachymski, T. Świątkowski, J. Matkowski	1995
135	Invariance in the class of weighted quasi-arithmetic means	J. Jarczyk, J. Matkowski	2006
74	Remark on Generalization of Minkowski's inequality	J. Jelínek, J. Matkowski	1995
8	On the continuous dependence of Cr solutions of a functional equation on given functions	J. Matkowski	1971
6	Note on a functional equation	J. Matkowski	1971
14	On Lipschitzian solutions of a functional equation	J. Matkowski	1973
7	On meromorphic solutions of a functional equation II	J. Matkowski	1971
31	Cauchy functional equation on restricted domain and commuting functions	J. Matkowski	1985
38	On Nemytskii operator	J. Matkowski	1988
32	Remark on BV -solutions of a functional equation connected with invariant measures	J. Matkowski	1985
183	Power means generated by some mean-value theorems	J. Matkowski	2011
40	On a characterization of Lp-norm	J. Matkowski	1989
44	A generalization of Hölder's and Minkowski's inequality and conjugate functions	J. Matkowski	1991
45	On an iteration group and its application to a proof of the converse of Minkowski's inequality theorem	J. Matkowski	1991
79	On a characterization of Lp-norm and a converse of Minkowski's inequality	J. Matkowski	1996
46	On a-Wright convexity and the converse of Minkowski's inequality	J. Matkowski	1992
1	On some properties of solutions of a functional equations	J. Matkowski	1969
29	Form of Lipschitz operators of substitution in Banach space of differentiable functions	J. Matkowski	1984
37	On Nemytskii Lipschitzian operator	J. Matkowski	1987
12	The uniqueness of solutions of a system of functional equations in some special classes of functions	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 non-uniqueness case	J. Matkowski	1971
19	Integrable solutions of functional equations	J. Matkowski	1975
22	Fixed point theorems for mappings with a contractive iterate at a point	J. Matkowski	1977
23	Integrable solutions of a linear functional inequality	J. Matkowski	1978
42	A functional inequality characterizing convex functions, conjugacy and a generalization of Hölder's and Minkowski's inequalities	J. Matkowski	1990
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
25	Fixed point theorems for contractive mappings in metric space	J. Matkowski	1980
28	Functional equation and Nemytskii operators	J. Matkowski	1982
15	Some inequalities and generalization of Banach's principle	J. Matkowski	1973
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
47	Functional inequality characterizing concave functions in (0;∞)k	J. Matkowski	1992
49	Lp-like paranorms	J. Matkowski	1991
187	Uniformly bounded composition operators between general Lipschitz function normed spaces	J. Matkowski	2011
190	Generalized weighted arithmetic means	J. Matkowski	2012
191	On means which are quasi-arithmetic and of the Beckenbach-Gini type	J. Matkowski	2012
194	Invariance of Bajraktarevic mean with respect to quasi arithmetic means and its relation to the classical harmony	J. Matkowski	2012
195	Pexider type generalization of the Minkowski inequality	J. Matkowski	2012
196	Quadratic inequalities and a characterization of inner product	J. Matkowski	2012
197	Invariance of quasi-arithmetic mean with respect to a system of generalized Bajraktarevic means	J. Matkowski	2012
198	Fixed points and iterations of mean-type mappings	J. Matkowski	2012
199	Invariant graphs of functions for the mean-type mappings	J. Matkowski	2012
208	Invariance of Bajraktarevic mean with respect to Beckenbach-Gini means	J. Matkowski	2013
200	Results of Tadeusz Świątkowski on algebraic sums of sets and their applications in the theory of subadditive functions	J. Matkowski	2012
201	Mean-value theorem for vector-valued functions	J. Matkowski	2012
202	Fixed point theorem in a uniformly convex paranormed space and its application	J. Matkowski	2013
203	Mean-value property and characterizations of some elementary functions	J. Matkowski	2013
205	Pointwise monotonic functions and generalized subadditivity	J. Matkowski	2013
186	Quotient mean, its invariance with respect to a quasi-arithmetic mean-type mapping, and some applications	J. Matkowski	2011
185	Mean-value type equalities where function and its derivative are interchanged	J. Matkowski	2011
184	Functional equations related to homographic functions	J. Matkowski	2011
177	Subadditive periodic functions	J. Matkowski	2011
51	Subadditive functions and a relaxation of the homogeneity condition of seminorms	J. Matkowski	1993
52	On a generalization of Mulholland's inequality	J. Matkowski	1993
55	On a characterization of Lp-norm with the aid of the triangle inequality	J. Matkowski	1993
57	Functions which are additive on their graphs and some generalizations	J. Matkowski	1993
58	On a generalization of Browder-Goehde-Kirk fixed point theorem	J. Matkowski	1993
59	On subadditive functions	J. Matkowski	1993
62	The converse of the Hölder inequality and its generalizations	J. Matkowski	1994
64	Nonlinear contractions in metrically convex space	J. Matkowski	1994
174	Local operators and a characterization of Volterra operator	J. Matkowski	2010
175	A functional equation characterizing homographic functions	J. Matkowski	2010
176	A mean-value theorem and its applications	J. Matkowski	2011
179	A functional equation related to equality of means problem	J. Matkowski	2011
180	Invariance of Cauchy mean with respect to Lagrange mean-type mapping of the same generators	J. Matkowski	2011
182	Mean-type mappings and invariant curves	J. Matkowski	2011
207	Subhomogeneity of the Lp-norm like functionals	J. Matkowski	2013
109	Funkcyjne równania	J. Matkowski	2002
141	When M -convexity of a function implies its N -convexity for some means M and N	J. Matkowski	2007
139	On iterations of means and functional equations	J. Matkowski	2006
138	O średnich w trapezie	J. Matkowski	2006
119	Affine and convex functions with respect to the logarithmic mean	J. Matkowski	2003
41	The converse of the Minkowski's inequality theorem and its generalization	J. Matkowski	1990
99	Invariant and complementary means	J. Matkowski	1999
152	A converse of the Hölder inequality theorem	J. Matkowski	2009
154	Uniformly continuous superposition operators in the space of Hölder functions	J. Matkowski	2009
133	Lagrangean mean-type mapping for which the arithmetic mean is invariant	J. Matkowski	2005
100	Mean value property and associated functional equation	J. Matkowski	1999
114	On invariant generalized Beckenbach-Gini means	J. Matkowski	2002
113	J. Ciag geometryczny - metoda rozwiazywania równań rekurencyjnych	J. Matkowski	2002
110	Średnie i związane z nimi ciągi	J. Matkowski	2002
108	On iteration semigroups of mean-type mappings and invariant means	J. Matkowski	2002
156	Extension of solutions of a functional equation in two variables	J. Matkowski	2009
147	Uniformly continuous superposition operators in the spaces of differentiable functions and absolutely continuous functions	J. Matkowski	2008
148	Converse theorem for the Minkowski inequality	J. Matkowski	2008
149	Generalized convex functions and a solution of a problem of Zs. Páles	J. Matkowski	2008
151	Iteration groups, commuting functions and simultaneous systems of linear functional equations	J. Matkowski	2008
102	Iterations of mean-type mappings and invariant means	J. Matkowski	1999
142	Remarks on Lipschitzian mappings and some fixed point theorems	J. Matkowski	2007
137	On weighted extensions of Cauchy's means	J. Matkowski	2006
123	On subadditive functions and ψ-additive mappings	J. Matkowski	2003
95	Continuous solutions of a functional equation	J. Matkowski	1998
168	Generalizations of Lagrange and Cauchy Mean-Value Theorems	J. Matkowski	2010
84	The converse of a generalized Hölder inequality	J. Matkowski	1997
128	The converse theorem for Minkowski's inequality	J. Matkowski	2004
169	On weighted extensions of Beckenbach-Gini means	J. Matkowski	2010
170	A generalization of the Gołąb-Schinzel functional equation	J. Matkowski	2010
71	Remarks on multiplication of subadditive functions	J. Matkowski	1995
129	Convex functions with respect to a mean and a characterization a quasi-arithmetic mean	J. Matkowski	2004
73	On a system of simultaneous iterative functional equations	J. Matkowski	1995
87	Lipschitzian composition operators in some Banach function spaces	J. Matkowski	1997
165	Uniformly continuous superposition operators in the space of bounded variation functions	J. Matkowski	2010
127	Solution of regularity problem in equality of Cauchy means	J. Matkowski	2004
155	On extension of solutions of a simultaneous systems if iterative functional equations	J. Matkowski	2009
157	Iterations of the mean-type mappings	J. Matkowski	2009
166	Generalized weighted quasi-arithmetic means	J. Matkowski	2010
91	Iteration groups with generalized convex and concave elements	J. Matkowski	1997
126	Remarks on some problems of Th. M. Rassias	J. Matkowski	2004
30	On a characterization of Lipschitzian operators of substitution in the space BV[a,b]	J. Miś, J. Matkowski	1982
33	Examples and remarks to a fixed point theorem	J. Miś, J. Matkowski	1986
122	On a composite functional equation	J. Okrzesik, J. Matkowski	2003
167	A composite functional equation and invariant curves	J. Okrzesik, J. Matkowski	2010
172	On some generalizations of Gołąb-Schinzel functional equation	J. Okrzesik, J. Matkowski	2010
60	On the equality condition in Hölder's and Minkowski's inequalities	J. Rätz, J. Matkowski	1993
86	Convex functions with respect to an arbitrary mean	J. Rätz, J. Matkowski	1997
83	Equality in Minkowski inequality and a characterization of Lp-norm	J. Rätz, J. Matkowski	1997
85	Convexity of power functions with respect to symmetric homogeneous means	J. Rätz, J. Matkowski	1997
98	A characterization of Lp-norm with the aid of equality condition in the Hölder inequality	J. Rätz, J. Matkowski	1999
21	On sequences of contraction mappings	K. Baron, J. Matkowski	1977
16	A fixed point theorem for non-expansive mappings on compact metric spaces	K. Baron, J. Matkowski	1973
13	On the solutions fulfilling a Lipschitz condition of a nonlinear functional equation	K. Baron, J. Matkowski	1972
63	A sandwich with convexity	K. Baron, K. Nikodem, J. Matkowski	1994
20	Analytic solutions of a system of functional equations	K. Baron, R. Ger, J. Matkowski	1975
39	Locally defined operators in the space of differentiable functions	K. Lichawski, J. Miś, J. Matkowski	1989
66	An integral Jensen inequality for convex multifunctions	K. Nikodem, J. Matkowski	1994
53	Solutions of some functional inequalities connected with convex functions	K. Nikodem, J. Matkowski	1993
96	Convex set-valued functions and their conjugate	K. Nikodem, J. Matkowski	1998
189	Controllability of the Semilinear Volterra-Stieltjes Integral Equations in the Space of Regulated Function	L. A. Azocar, H. Leiva, N. Merentes, J. Matkowski	2012
161	On Bellman equation for asymptotics of utility from terminal wealth	L. Stettner, J. Matkowski	2010
11	Solutions of a functional equation in a special class of functions	M. Kuczma, J. Matkowski	1972
77	Positive homogeneous functionals related to Lp-norms	M. Pycia, J. Matkowski	1996
69	On ( α ; a )-convex functions	M. Pycia, J. Matkowski	1995
68	Convex-like inequality, homogeneity, subadditivity and characterization of Lp-norm	M. Pycia, J. Matkowski	1995
107	On a problem of Alsina again	M. Sablik, J. Matkowski	2001
34	Some remarks on a problem of C. Alsina	M. Sablik, J. Matkowski	1986
193	Uniformly bounded set-valued Nemytskij operators acting between generalized Hölder function spaces	M. Wróbel, J. Matkowski	2012
153	Representation theorem for locally defined operators in the space of Whitney differentiable functions	M. Wróbel, J. Matkowski	2009
188	Uniformly bounded Nemytskij operators generated by set-valued functions between generalized Hölder function spaces	M. Wróbel, J. Matkowski	2011
173	The bounded local operators in the space of Hölder functions	M. Wróbel, J. Matkowski	2010
78	A generalized α-Wright convexity and related functional equation	M. Wróbel, J. Matkowski	1996
144	Locally defined operators in the space of Whitney differentiable functions	M. Wróbel, J. Matkowski	2008
18	Solutions of bounded variation of a linear functional equation	M. Zdun , J. Matkowski	1974
112	Representation theorem for locally defined operators in the space of Whitney differentiable functions	M.Wróbel, J. Matkowski	2002
56	Characterization of globally Lipschitzian composition operator in the Sobolev space Wpn [a,b]	N. Merentes, J. Matkowski	1993
50	Characterization of globally Lipschitzian composition operators in the Banach space BVp2	N. Merentes, J. Matkowski	1992
105	Dido's functional equation revisited	P. Kahlig, A.N. Sharkovsky, J. Matkowski	2000
88	On the composition of homogeneous quasiarithmetic means	P. Kahlig, J. Matkowski	1997
101	On a functional equation for Dido's problem	P. Kahlig, J. Matkowski	1999
209	On a functional equation related to competition	P. Kahlig, J. Matkowski	2013
80	Envelopes of special class of one-parameter families of curves	P. Kahlig, J. Matkowski	1996
97	Decomposition of homogeneous means and construction of some metric spaces	P. Kahlig, J. Matkowski	1998
90	Envelopes of families of curves related to some iterative functional equations	P. Kahlig, J. Matkowski	1997
67	On some extensions of the Gołąb-Schinzel functional equation	P. Kahlig, J. Matkowski	1994
81	On a class of composite functional equations in a single variable	P. Kahlig, J. Matkowski	1996
130	The Gołąb-Schinzel functional equation restricted to ab- half-lines	P. Kahlig, J. Matkowski	2004
76	Functional equations involving logarithmic mean	P. Kahlig, J. Matkowski	1996
125	A modifieed Gołąb-Schinzel functional equation (with ab-applications to meteorology and fluid mechanics)	P. Kahlig, J. Matkowski	2003
131	Elliptic means and their generalizations	P. Kahlig, J. Matkowski	2004
48	On some aspects of interpolation and functional equations	P. Kahlig, J. Matkowski	1991
134	Distributions of homogeneous means of uniform independent random variables and a characterization of means	P. Kahlig, J. Matkowski	2005
120	Solution of Z. Daróczy problem on mixing quasi-arithmetic means	P. Kahlig, J. Matkowski	2003
146	A functional equation with two unknown functions	P. Volkmann, J. Matkowski	2008
92	Round of stability of functional iterations on product spaces	S. L. Singh, J. Matkowski	1997
82	Banach type fixed point theorem on product of spaces	S.L. Singh, J. Matkowski	1997
54	Subadditive functions and partial converses of Minkowski's and Mulholland's inequalities	T. Świątkowski, J. Matkowski	1993
43	Quasi-monotonicity, subadditive bijections of R+ and characterization of Lp-norm	T. Świątkowski, J. Matkowski	1991
162	Uniformly continuous set-valued com- position operators in the spaces of functions of bounded variation in the sense of Riesz	W. Aziz, N. Merentes, J. Matkowski	2010
158	Embeddability of mean-type mappings in a continuous iteration semigroup	W. Jarczyk, J. Matkowski	2010
115	On Mulholland's inequality	W. Jarczyk, J. Matkowski	2002
104	Remarks on quasi-arithmetic means	W. Jarczyk, J. Matkowski	2000
26	Note on iterations of some entire functions	W. Ogińska,  J. Matkowski	1979
111	On ( α - a )-convex set valued functions	W. Ślepak, J. Matkowski	2002
89	Method of characteristic for functional equations in polynomial form	W. Zhang, J. Matkowski	1997
103	On linear dependence of iterates	W. Zhang, J. Matkowski	2000
93	Characteristic analysis for a polynomial-like iterative equation	W. Zhang, J. Matkowski	1998
106	On the polynomial-like iterative functional equation	W. Zhang, J. Matkowski	2000
27	Remarks on a fixed point theorem	Z. Benedykt, J. Matkowski	1981
35	On a functional equation φ(x) = αφ(αx) + (1 - α)φ(1 - (1 - α )x)	Z. Kominek, J. Matkowski	1986
72	On stability of the homogeneity condition	Z. Kominek, J. Matkowski	1995
17	On the existence of a convex solution of a functional equation	Z. Kominek, J. Matkowski	1974
94	A separation theorem for Mφ-convex functions	Z. Zgraja, J. Matkowski	1998

Download a full list of Articles