Ongoing Project:
2025: Geometric constants for mixed Morrey spaces (with Ifronika and J. Lindiarni)
2025: Olsen’s inequality for discrete Morrey spaces (with Y. Ramadana and Y. Sawano)
2025: Discrete operators on generalized weighted discrete Morrey spaces (with Y. Ramadana)
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Periode 2021-2025:
2021: Weak solution existence of ellptic PDEs in generalized Morrey spaces (with N.K. Tumalun and D.I. Hakim)
2021: Generalized Von Neumann-Jordan constant for Morrey spaces and small Morrey spaces (with H. Rahman)
2021: On geometric properties of Morrey spaces (with D.I. Hakim and A.S. Putri, in UFA Math. J.)
2021: A note on the g-angle between subspaces of a normed space (with M. Nur, in Aequat. Math.)
2021: On Birkhoff angles in normed spaces (with M. Jamaludin and M.D. Pratamadirdja)
2022: On geometric constants for discrete Morrey spaces (with A. Adam)
2022: g*-angle between two subspaces in the space of p-summable sequences (with M. Nur and A. Islamiyati)
2022: On inclusion properties of discrete Morrey spaces (with D.I. Hakim and M. Idris)
2022: Half-space model problem for Navier-Lame equations with surface tension (with S. Maryani and B.H. Guswanto)
2023: Some functions spaces and their applications to elliptic partial differential equations (with N.K. Tumalun and D.I. Hakim)
2023: Boundedness of the Hardy-Littlewood maximal operator, fractional integral operators, and Calderon-Zygmund operators on generalized wieghted Morrey spaces (with Y. Ramadana)
2023: Functions in vanishing Morrey spaces (with D. Hasanah)
2024: Approximation in modified Zorko spaces (with D. Hasanah)
2024: Inclusion and geometric properties of mixed Morrey double-sequence spaces (with D.I. Hakim, Ifronika, and O. Neswan)
2024: Von Neumann-Jordan constant for weak Orlicz spaces and weak Lebesgue spaces (with Ifronika)
2024: On inner products derived from the standard n-inner product on an inner product space (with A. Adam and S. Rante)
2024: A new definition of strictly convex 2-normed spaces (with L. Widyatma)
2024: Modified Zorko spaces and its properties (with D. Hasanah)
2024: Boundedness of sublinear operator generated by Calderon-Zygmund operator on generalized weighted Morrey spaces over quasi-metric measure spaces (with Y. Ramadana)
2025: Approximation in generalized Morrey spaces using the second order difference (with D. Hasanah)
2025: On the proper inclusion property of (discrete) Morrey spaces (with Y.I. Runtunuwu and J. Lindiarni)
***
Periode 2016-2020:
2016: A new 2-inner product on the space of p-summable sequences (with S. Konca and M. Idris)
2016: The boundedness of Bessel-Riesz operators on Morrey spaces (with M. Idris, J. Lindiarni, and Eridani)
2016: The boundedness of Bessel-Riesz operators on generalized Morrey spaces (with M. Idris and Eridani)
2016: Inclusion properties of Orlicz and weak Orlicz spaces (with A.A. Masta and W. Setya-Budhi)
2017: On the Fundamental Theorem of Arithmetic and Euclid’s Theorem
2017: Minimum m-accretive operators and boundary value problems of Hamilton-Jacobi-Bellman equation (with M.K. Djafar and Y. Soeharyadi)
2017: The boundedness of generalized Bessel-Riesz operators on generalized Morrey spaces (with M. Idris)
2017: Inclusion properties of generalized Morrey spaces (with D.I. Hakim, K.M. Limanta, and A.A. Masta)
2017: An inclusion property of Orlicz-Morrey spaces (with A.A. Masta and W. Setya-Budhi)
2017: On inclusion properties of two versions of Orlicz-Morrey spaces (with A.A. Masta and W. Setya-Budhi)
2018: n-Normed spaces with norms of its quotient spaces (with H. Batkunde)
2018: Norm estimates for Bessel-Riesz operators on generalized Morrey spaces (with M. Idris and Eridani)
2018: Discrete Morrey spaces and their inclusion properties (with E. Kikianty and C. Schwanke)
2018: On inclusion relation between weak Morrey spaces and Morrey spaces (with D.I. Hakim, E. Nakai, and Y. Sawano)
2018: Maximal and fractional integral operators on generalized Morrey spaces over metric measure spaces (with I. Sihwaningrum and E. Nakai)
2018: The Hardy and Heisenberg inequalities in Morrey spaces (with D.I. Hakim, E. Nakai, and Y. Sawano)
2018: Proper inclusion of Morrey spaces (with D.I. Hakim and M. Idris)
2018: n-inner products, n-norms, and angles between two subspaces
2018: A formula for the g-angle between two subspaces of a normed space (with M. Nur and O. Neswan)
2018: Generalized Holder’s inequality in Morrey spaces (with Ifronika, M. Idris, and A.A. Masta)
2018: Norm estimates for Bessel-Riesz operators on generalized Morrey spaces (with M. Idris)
2019: Generalized Holder’s inequality in Orlicz spaces (with Ifronika, A.A. Masta, and M. Nur)
2019: A new orthogonality and angle in a normed space (with M. Nur)
2019: Three equivalent n-norms on the space of p-summable sequences (with M. Nur, in Fundam. J. Math. Appl.)
2019: On the topology of n-normed spaces with respect to norms of its quotient spaces (with H. Batkunde)
2019: Konsep garis singgung pada kurva (with V. Deviantri)
2019: Morrey spaces are embedded between weak Morrey spaces and Stummel classes (with N.K Tumalun)
2019: Three geometric constants for Morrey spaces (with E. Kikianty, Y. Sawano, and C. Schwanke)
2019: The Hardy-Littlewood maximal operators on discrete Morrey spaces (with C. Schwanke)
2020: On generalized Holder’s inequality in weak Morrey spaces (with A. Wajih)
2020: Inclusion between generalized Stummel classes and other function spaces (with N.K. Tumalun and D.I. Hakim)
2020: Extension of Hardy-Littlewood-Sobolev inequalties for Riesz potentials on hypergroups (with I. Sihwaningrum and S. Maryani, in Mediter. J. Math.)
2020: A revisit to n-normed spaces through its quotient spaces (with H. Batkunde)
2020: Bounded linear functional on n-normed spaces through its quotient spaces (with H. Batkunde, in Internat. J. Appl. Phys. Math.)
***
Periode 2011-2015:
2011: On the product of N Chebyshev systems (with L. Ambarwati)
2011: Surfaces with prescribed nodes and minimum energy integral of fractional order (with E. Rusyaman and L. Ambarwati)
2011: Application of Reproducing Kernel Hilbert Spaces to a minimization problem with prescribed nodes (with Y. Sawano)
2012: Weak type inequalities for fractional integral operators on generalized non-homogeneous Morrey spaces (with I. Sihwaningrum and S. Maryani)
2012: A characterization for fractional integral operators on generalized Morrey spaces (with Eridani and M.I. Utoyo)
2012: Generalized Stummel class and Morrey spaces (with E. Nakai, Y. Sawano, and H. Tanaka)
2013: On the space of p-summable sequences (with M. Idris and S. Ekariani)
2013: The local trace inequality for potential type integral operators (with H. Tanaka)
2013: Two equivalent n-norms on the space of p-summable sequences (with R.A. Wibawa-Kusumah)
2013: Equivalence relations of n-norms on a vector space (with T.R. Kristianto and R.A. Wibawa-Kusumah)
2013: A contractive mapping theorem on the n-normed space of p-summable sequences (with S. Ekariani and M. Idris)
2013: Bounded linear functionals on the n-normed space of p-summable sequences (with H. Batkunde and Y.E.P. Pangalela)
2013: The n-dual space of the space of p-summable sequences (with Y.E.P. Pangalela)
2013: Multilinear maximal functions and fractional integrals on generalized Morrey spaces (with I. Sihwaningrum)
2013: Weak (p,q) inequalites for fractional integral operators on generalized Morrey spaces of non-homogeneous type (with D.I. Hakim)
2013: Weak type inequalities for some integral operators on generalized nonhomogeneous Morrey spaces (with D.I. Hakim, Y. Sawano, and I. Sihwaningrum)
2014: Characterizations for the gereralized fractional integral operators on Morrey spaces (with Eridani, E. Nakai, and Y. Sawano)
2014: Morrey spaces and Related Function Spaces (with Y. Sawano, V. Guliyev, and H. Tanaka)
2014: Some remarks on l^p as an n-normed space (with S. Konca and M. Basarir)
2014: A recursion scheme for Fisher equation (with P. Sitompul, Y. Soeharyadi, and A.Y. Gunawan)
2015: p-summable sequence spaces with inner products (with S. Konca and M. Idris)
2015: p-summable sequence spaces with 2-inner products (with S. Konca, M. Idris, and M. Basarir)
2015: On the n-normed space of p-integrable functions (with S. Ekariani and M. Idris)
2015: Weak type inequalities for some operators on generalized Morrey spaces over metric measure spaces (with I. Sihwaningrum and A. Wardayani)
2015: Non-smooth atomic decomposition for generalized Orlicz-Morrey spaces (with Y. Sawano and D.I. Hakim)
2015: Fixed point theorems on bounded sets in an n-normed spaces (with E. Sukaesih and O. Neswan)
2015: A partial solution to an open problem in n-normed spaces (with M. Idris and S. Konca)
***
Periode 2006-2010:
2006: Orthogonality in 2-normed spaces revisited (with Mashadi, S. Gemawati, N. Supiamin, and I. Sihwaningrum)
2006: Orthogonality in n-normed spaces (with E. Kikianty, Mashadi, S. Gemawati, and I. Sihwaningrum)
2007: On integrals arising from a Lie group contraction problem (with S. Gupta)
2008: P-, I-, g-, and D-angles in normed spaces (with J. Lindiarni and O. Neswan)
2008: An interpolation method that minimizes an energy integral of fractional order (with F. Pranolo and E. Rusyaman)
2009: Fractional integrals and generalized Olsen inequalities (with Eridani)
2009: Fractional integral operators in non-homogeneous spaces (with Y. Sawano and I. Sihwaningrum)
2010: Fractional integrals and Olsen inequalities on nonhomogeneous spaces (with I. Sihwaningrum and H.P. Suryawan)
2010: Equivalence of n-norms on the space of p-summable sequences (with A, Mutaqin)
2010: On n-norms and bounded n-linear functionals in a Hilbert space (with S.M. Gozali and O. Neswan)
2010: On b-orthogonality in 2-normed spaces (with S.M. Gozali)
***
Periode 2001-2005:
2001: On finite dimensional 2-normed spaces (with Mashadi)
2001: An inner product that makes a set of vectors orthonormal
2001: On n-normed spaces (with Mashadi)
2001: The space of p-summable sequences and its natual n-norm
2002: Some estimates for imaginary powers of Laplace operators
2002: Weighted estimates for fractional maximal functions related to spherical means (with M. Cowling and J. Garcia-Cuerva)
2002: Inner products on n-inner product spaces
2002: On convergence in n-inner product spaces
2002: A generalization of Bessel’s inequality and Parseval’s identity
2002: On n-inner products, n-norms, and the Cauchy-Schwarz inequality
2002: A note on Dragomir-Mcandrew’s trapezoid inequality
2003: A note on the generalized fractional integral operators
2003: On measures of central location
2004: On the behavior of the solution of the wave equation (with W. Setya-Budhi)
2004: On generalized fractional integral operators (with Eridani and E. Nakai)
2005: Stummel class and Morrey spaces (with Eridani)
2005: A formula for angles between subspaces of inner product spaces (with O. Neswan and W. Setya-Budhi)
2005: On angles between subspaces of inner product spaces (with O. Neswan)
2005: On volumes of n-dimensional parallelepipeds in l^p spaces (with W. Setya-Budhi, Mashadi, and S. Gemawati)
***
Periode 1992-2000:
1992: A generalization of maximal functions on compact semisimple Lie groups
1993: L²-estimates for some maximal functions
1996: On weighted estimates for Stein’s maximal function
1997: On finding the fundamental dominant weights of a root system
1998: Some weighted estimates for Stein’s maximal function
2000: On the triangle inequality for the standard 2-norm (with W. Setya-Budhi)
***
Unpublished Papers:
2020: Karakterisasi ruang hasil kali dalam menggunakan konstanta Dunkl-Williams (with L. Widyatma, supported by RIK-A ITB 2020)
2019: Fefferman’s inequality and unique continuation property of elliptic partial differential equations (with N.K. Tumalun and D.I. Hakim, supported by RIK-A ITB 2019)
2016: On the fundamental theorem of arithmetic and Euclid’s theorem
2006: Orthogonality in n-normed spaces (with E. Kikianty et al.)
See also: https://scholar.google.co.id/citations?user=U9ZCm_YAAAAJ&hl=id&oi=ao and http://itb.academia.edu/HendraGunawan
Bermatematika 