A. Martinez-Sanchez, U. Homberg, J.M. Almira, and H.Phelippeau.Tensorial template matching with rotations and its application for tomography, submitted (2023), Accepted in the 18th European Conference on Computer Vision ECCV 2024,
https://arxiv.org/abs/2408.02398
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J. M. Almira, J. Ángel Cid, A ring-theoretic approach to the double-sidedness of the matrix inverse. Elem. Math. (2023)
J. M. Almira, E. W. Dijkstra: el pensador informático, Conferencia organizada por DAFI, Facultad de informática, Universidad de Murcia (2022)
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J. M. Almira, Razones para la incompletitud: los teoremas de Gödel, su interpretación y sus consecuencias (2022) (Conferencia impartida en la Universidad de Sevilla con motivo del “Año Gödel”, 2022, en la Universidad de Córdoba, también en 2022, y en la Universidad de Murcia en febrero de 2024, ver:
https://youtu.be/yHtJFfZNRkg?si=WS-1zXtL6Ecw5KLT ).
J. M. Almira, Aichinger equation on commutative semigroups, Aparecerá en Filomat (2023)
J. M. Almira, Remark: Aichinger's equation, Remark presented at HSA2021 (2021)
J. M. Almira, P Fernández-Martínez, On slow decay of Peetre's K-functional Journal of Mathematical Analysis and Applications 494 (2) 124653 1(2021)
J. M. Almira, Slow decay of Peetre's K-functional, Conferencia impartida por invitación en XXth EARCO, Cartagena, Mayo 2022
J. M. Almira, Aportaciones de Ancochea al Teorema de los ceros de Hilbert, Capítulo 6 del libro “Germán Ancochea Quevedo. Tributo a un pionero de la investigación matemática española”, Coord. por José Ángel Cid y Benjamín Macía, Ed. RSME, 2021. pp. 167-184.
J. M. Almira, PCR tests with high sensitivity and specificity are truly trustworthy under high prevalence or medical prescription, Materials Matematics, 2021
J. M. Almira, A. Romero, The Fundamental Theorem of Algebra and Liouville’s Theorem geometrically revisited, Applied Sciences, Vol.23, 2021, pp. 1-4.
J. M. Almira, An open problem: characterization of finite dimensional $\Delta^m$-invariant subspaces of measurable functions, Remark presented at HSA2020 (2020)
J. M. Almira, On Popoviciu-Ionescu functional equation in one and several variables, Séptimas Jornadas de Análisis Matemático, Seminario de Matemáticas, Universidad de Alicante, Capítulo 3, páginas 45–51, Publicacions de la Universidad d'Alacant (ver también arXiv:2001.01951) ISBN 978-84-1302-115-7.
J. M. Almira, A. Romero, A new proof of a classical result on the topology of orientable connected and compact surfaces by means of the Bochner technique, Rendiconti Sem. Mat. Univ. Pol. Torino Vol. 77, 1 (2019), 131 – 136.
J. M. Almira, Una demostración del teorema de la esfera peluda basada en argumentos de Geometría de Riemann, Conferencia impartida en: “Seminario de Geometría”, Universidad de Murcia, 2019.
J. M. Almira, Matemáticas y neuromarcadores calculados a partir de electroencefalogramas, Conferencia impartida en la Facultad de Ciencias de la Universidad de Granada, invitado por la Academia de Ciencias de Granada, 2019.
J. M. Almira, Hilbert: La formación del genio (1888-1900), Aspectos históricos de las matemáticas, IX Ciclo de conferencias Facultad de Matemáticas, Universidad de Murcia, 2019.
J. M. Almira, P. López-de-Teruel, D. Romero-López, F. Voigtlaender, Some negative results for single layer and multilayer feedforward neural networks, Journal of Mathematical Analysis and Applications, Volume 494, Issue 1, 1 February 2021, 124584
J. M. Almira, Characterization of polynomials as solutions of certain functional equations, Journal of Mathematical Analysis and Applications 459 (2), 1016-1028, 2018.
J. M. Almira, E. V. Shulman, On polynomials on non-commutative groups, Journal of Mathematical Analysis and Applications, Volume 458, Issue 1, 1 February 2018, pp. 875-888.
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J. M. Almira, A Montel-type theorem for mixed differences, Rendiconti Sem. Mat. Univ. Pol. Torino, Vol. 75, 2 (2017), 5–10.
J. M. Almira, Characterization of functions whose forward differences are exponential polynomials Comment. Math. Univ. Carolin. 58 (4) (2017) 435–442.
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J. M. Almira, An elementary inductive proof that AB=I implies BA=I for matrices, 2016
J. M. Almira, On Loewner's characterization of polynomials, Jaen Journal on Approximation, 2016.
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J. M. Almira, L Székelyhidi, Erratum to: On the Closure of Translation–Dilation Invariant Linear Spaces of Polynomials, Results in Mathematics 69 (1), 273-274 2016
J. M. Almira, L Székelyhidi, On the Closure of Translation–Dilation Invariant Linear Spaces of Polynomials, Results in Mathematics 69 (1), 263-272 2016
J. M. Almira, Some remarks on the closure of translation-dilation invariant linear spaces of polynomials, Conferencia impartida en 16th International Conference on Functional Equations and Inequalities, Bedlewo, Poland, May 17-23, 2015.
J. M. Almira, A.G. Aksoy, On Montel and Montel–Popoviciu theorems in several variables, Aequationes Mathematicae 89 (5), 1335-1357 11 2015
J. M. Almira, A. J. López-Moreno, N Del Toro, Metrics with good corona properties, arXiv preprint arXiv:1502.03383 1 2015
J. M. Almira, K. F. Abu-Helaiel, Los teoremas de Fréchet, Montel y Popoviciu y los grafos de los polinomios discontinuos, arXiv preprint arXiv:1502.02962 2015
J. M. Almira, K. F. Abu-Helaiel, A qualitative description of graphs of discontinuous polynomial functions, Annals of Functional Analysis 6 (2), 1-10 2015
J. M. Almira, K. F. Abu-Helaiel, On Montel's theorem in several variables, Carpathian Journal of Mathematics, 1-10 16 2015
J. M. Almira, Z. Boros, A dichotomy property for the graphs of monomials, arXiv preprint arXiv:1410.8468 2014
J. M. Almira, L Székelyhidi, Montel-type theorems for exponential polynomials, Demonstratio Mathematica 49 (2) (2016) 197-212. 49 (2), 197-212 10 2014
J. M. Almira, K. F. Abu-Helaiel, A qualitative description of graphs of discontinuous polynomial functions, arXiv preprint arXiv:1401.3273 4 2014
J. M. Almira, L Székelyhidi, Characterization of Classes of Polynomial Functions, Arxiv preprint; arXiv:1404.0263 2 2014
J. M. Almira, L Székelyhidi, Local polynomials and the Montel Theorem, arXiv preprint arXiv:1403.4486, 1-9 10 2014
J. M. Almira, K. F. Abu-Helaiel, A p-ádic Montel Theorem and Locally Polynomial Functions, Filomat 28 (1), 159-166 2014
A. G. Aksoy, J. M. Almira, On Shapiro's Lethargy Theorem and some applications, arXiv preprint arXiv:1211.3356; to appear on Jaén Journal on Approximation 8 2014
A. G. Aksoy, J. M. Almira, On approximation schemes and compactness, arXiv preprint arXiv:1311.2385 1 2013
J. M. Almira, K. F. Abu-Helaiel, A note on invariant subspaces and the solution of some classical functional equations, Annals of the Tiberiu Popoviciu Seminar of Functional Equations … 8 2013
J. M. Almira, An ultrametric lethargy result and its application to p-adic number theory, Bull. Malaysian Math. Sci. Soc. 36 (4), 927-935 1 2013
J. M. Almira, K. F. Abu-Helaiel, A note on monomials, Mediterranean Journal of Mathematics 10 (2), 779-789 6 2013
J. M. Almira, Montel's Theorem and Subspaces of Distributions which are (Δ^m)-invariant, Numerical Functional Analysis and Optimization 17 2013
J. M. Almira, T. Oikhberg, Approximation schemes satisfying Shapiro’s theorem, Journal of Approximation Theory 164 (5), 534-571 17 2012
J. M. Almira, T. Oikhberg, Shapiroʼs Theorem for subspaces, Journal of Mathematical Analysis and Applications 388 (1), 282-302 10 2012
J. M. Almira, A. Romero, Some Riemannian geometric proofs of the fundamental theorem of algebra, Differential Geometry-Dynamical Systems 14, 1-4 3 2012
J. M. Almira, A lethargy result for real analytic functions, Applied Mathematics Letters 25 (6), 1016–1018 2012
J. M. Almira, K. F. Abu-Helaiel, On solutions of $f(x)+f(a_1x)+…+f(a_Nx)=0$ and related equations, Ann. Tiberiu Popoviciu Semin. Funct. Equ. Approx. Convexity 9, 3–17 (2011)
J. M. Almira, Note on Frechet functional equation with restrictions, arXiv preprint arXiv:1104.5336 2011
J. M. Almira, A note on classical and p-adic Fréchet functional equations with restrictions, Results in Mathematics 6 2011
J. M. Almira, A. E. Romero, Image zooming based on sampling theorems, Materials Matematics, 1-22 8 2011
J. M. Almira, On strict inclusion relations between approximation and interpolation spaces, Banach J. Math. Anal. 5 (2), 93-105 3 2011
J. M. Almira, A simple observation about compactness and fast decay of Fourier coefficients, Annals of Functional Analysis 1 (1), 41-43 1 2010
J. M. Almira, A. E. Romero, A note about Norbert Wiener and his contribution to Harmonic Analysis and Tauberian Theorems, Aip Conference Proceedings 1124, 19 2009
J. M. Almira, A. E. Romero, How distant is the ideal filter of being a causal one?, arXiv preprint arXiv:1502.07650 13 2008
J. M. Almira, Cuerdas vibrantes y calor: la génesis del Análisis de Fourier, Matematicalia 4 (1) 5 2008
J. M. Almira, B. Passot, Selecciones continuas: un caso particular, Gaceta de la Real Sociedad Matemática Española 11 (2), 249-258 2008
J. M. Almira, Muntz type Theorems I, arXiv preprint arXiv:0710.3570 50 2007
J. M. Almira, A. J. López-Moreno, On solutions of the Fréchet functional equation, Journal of mathematical analysis and applications 332 (2), 1119-1133 36 2007
J. M. Almira, A. Romero, Yet another application of the Gauss-Bonnet Theorem for the sphere, Bulletin of the Belgian Mathematical Society-Simon Stevin 14 (2), 341-342 7 2007
J. M. Almira, Nullstellensatz revisited, Rend. Sem. Mat. Univ. Pol. Torino 65 (3), 365-369 7 2007
J. M. Almira, On Müntz Theorem for countable compact sets, Bulletin of the Belgian Mathematical Society-Simon Stevin 13 (1), 69-73 5 2006
J. M. Almira, U. Luther, Inverse closedness of approximation algebras, Journal of mathematical analysis and applications 314 (1), 30-44 45 2006
J. M. Almira, N. Del Toro, A. J. López-Moreno, A note on Diophantine approximation, International journal of mathematics and mathematical sciences 2005 (3), 487-490 1 2005
J. M. Almira, N. Del Toro, P. J. Torres, Stability Invariance of a Periodic Linear Switched System, Dynamics of Continuous Discrete and Impulsive Systems, Series A 12 (1), 139 2005
J. M. Almira, Sobre lógica y matemáticas: Algunas observaciones sobre los fundamentos de la matemática, Rev. Acad. Can. Ciencias XVII (1-2), 117-139 1 2005
J. M. Almira, An application of the Gelfand-Mazur theorem: the fundamental theorem of algebra revisited. Divulgaciones Matemáticas 13 (2), 13-125 3 2005
J. M. Almira, E. M. García-Caballero, S. G. Moreno, J. M. Quesada, A topological approach to Best Approximation Theory Applied general topology 5 (1), 49-70 2 2004
J. M. Almira, M. Jimenez, N. Del Toro, More on a topological mean value theorem, Elemente der Mathematik 59 (1), 19-22 1 2004
J. M. Almira, N. Del Toro, A. J. López-Moreno, A Muntz-type Theorem for Diophantine Approximation on Intervals of Length Smaller than Four, Communications in Applied Analysis 8 (3), 335-342 1 2004
J. M. Almira, N. Del Toro, J. Jodar, Several Muntz Type Theorems for Simultaneous Diophantine Approximation on Intervals of Length Smaller Than 2√2, Communications in Applied Analysis 8 (4), 563-574 2 2004
J. M. Almira, N. Del Toro, On negative results in approximation theory, Communications in Applied Analysis 8 (2), 237-250 5 2004
J. M. Almira, U. Luther, Generalized approximation spaces and applications, Mathematische Nachrichten 263 (1), 3-35 35 2004
J. M. Almira, N. Del Toro, Remarks on semilinear problems with nonlinearities depending on the derivative. Electronic Journal of Differential Equations (EJDE)[electronic only] 2003 (2) 2003
J. M. Almira, A. J. Lopez-Moreno, Characterizing polynomials by forward differences, Applied Mathematics E-Notes 3, 1-9 3 2003
J. M. Almira, N. Del Toro, Sobre aproximación con polinomios de coeficientes enteros. Gaceta de la Real Sociedad Matemática Española 6 (1), 377-403 2 2003
J. M. Almira, A. J. Lopez-Moreno, Nonexistence of continuous selections in connection with the mean value theorem, Austral. Math. Soc. Gaz 30, 191-194 1 2003
J. M. Almira, M. Jiménez, N. Del Toro, Another topological proof of the Fundamental Theorem of Algebra, Elemente der Mathematik 57 (1), 32-37 2 2002
J. M. Almira, U. Luther, Compactness and generalized approximation spaces, Numerical Functional Analysis and Optimization Volume 23, 2002 - Issue 1-2, p. 1-38, 2002.
J. M. Almira, U. Luther, A note on simultaneous diophantine approximation, Applied Mathematics E-Notes 2, 29-35 3 2002
J. M. Almira, N. Del Toro, A. J. López-Moreno, Una nota sobre aproximación simultánea de funciones, Monografías de la Academia de Ciencias de Zaragoza 20, 1-8 2002
J. M. Almira, N. Del Toro, Some remarks on negative results in approximation theory, Rendiconti del Circolo Matematico di Palermo, Serie II 68, 245–256 (2002).
J. M. Almira, N. Del Toro, U. Luther, A survey on a general theory of approximation spaces and its applications, Colloquium del Depto. Análisis Matemático, Univ. Complutense Madrid (2001), pp. 1–16.
J. M. Almira, U. Luther, Approximation algebras and applications, in Trends in Approximation Theory, edited by K. Kopotun, T. Lyche, and M. Neamtu (Vanderbilt Univ. Press, Nashville, 2001).
J. M. Almira, P. J. Torres, Invariance of the stability of Meissner’s equation under a permutation of its intervals, Annali di Matematica Pura ed Applicata 180 (2), 245-253 10 2001
J. M. Almira, P. D. González, Una demostración constructiva de un homeomorfismo entre P^3 y SO(3). Gaceta Real Soc. Mat. Esp. 4 (2), 366-374 1 2001
J. M. Almira, M. Jiménez, A proof of the intermediate value theorem adapted to polynomials, Revista de la Academia Canaria de Ciencias:= Folia Canariensis Academiae 2001
J. M. Almira, An Introduction to Fourier Analysis and Signal Processing, Technische Universität Chemnitz, Fakultät für Mathematik (Germany). Preprint 2001
J. M. Almira, F. Pérez Acosta, Discretization and best approximation in Besov spaces, Approximation Theory and its Applications 15 (2), 22-35 1999
J. M. Almira, Approximation Theory in Approximation Spaces, Doctoral Thesis, University of La Laguna (Tenerife) (1999).
J. M. Almira, F. Perez Acosta, Comparison of inequalities for the minimax series via Tchebychev polynomials, Journal of computational and applied mathematics 99 (1-2), 319-325 1 1998
J. M. Almira, F. Perez Acosta, Convergence and compactness in Besov spaces, INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS 29 (10), 1073-1082 1 1998
J. M. Almira, F. Perez Acosta, Convergence in generalized Schatten classes of operators, Le Matematiche 53 (2), 305-317 1 1998
J. M. Almira, F. Perez Acosta, Some extremal properties of generalized Tchebychev polynomials, Le Matematiche 52 (2), 379-385 1997.